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-1- a a e e e e l l o o w w p p o o w w e e r r h h i i g g h h e e f f f f i i c c i i e e n n c c y y t t e e c c h h n n i i c c a a l l r r e e f f e e r r e e n n c c e e n n o o t t e e s s 2.5v 2.5v , 3.3v , 3.3v , 5v , 5v , 12v single output , 12v single output 15 watt dc-dc converter 15 watt dc-dc converter (rev01) (rev01) usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 publishing date: 20020715
a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -2- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com introduction introduction the aee low power high efficiency series of dc-dc converters is one of the most cost effective options available in component power. the series uses an industry standard package size and pinout configu- ration, provides trim functions. aee low power high efficiency converters come in 24v or 48v input versions, each of which uses a 2:1 input range; 18v to 36v for the 24vin versions, and 36v to 75v for the 48vin versions. outputs are iso- lated from input and the converters are capable of providing up to 15 watts of output power. at start up, input current passes through an input fil- ter designed to help meet cispr 22 level a radiat- ed emissions, and bellcore gr1089 conducted emissions. a fault clearing device such as a fuse should be used in line with the input to the module. the aee low power high efficiency converters are pulse width modulated (pwm) and operate at a nominal fixed frequency of 300khz (250khz for aee01b48). feedback to the pwm controller uses an opto-isolator, maintaining complete isolation between primary and secondary. caution should be taken to avoid ground loops when connecting the converters to ground. design features design features 2? x 1? package high efficiency high power density 15 watts of output power 2:1 wide input of 18-36v and 36-75v cnt function trim function input under-voltage lockout output short circuit protection output current limiting output over-voltage protection high input-output isolation voltage wide operating case temperature range: -40 c~ +100c options options choice of trim function choice of cnt function choice of positive logic or negative logic for cnt function choice of short pins or long pins
t t ypical application ypical application fuse: 24vin--2a 48vin--1a c0 recommended: 24vin--220 f/50v electrolytic or ceramic type capacitor 48vin--220 f/100v electrolytic or ceramic type capacitor c1 recommended: m 47 f/100v capacitor c2 recommended: 100 f/25v electrolytic or ceramic type capacitor c3 recommended: 0.1 f/50v capacitor c4 recommended: 1000pf capacitor l1 recommended: 10--12 h a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -3- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com fuse tr i m -vo +vo -vin cnt +vin load c3 c2 vin k l1 c0 c1 c4
a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -4- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com block diagram block diagram ordering information ordering information AEE04F24-197 18-36v 3.3v 4.5a 15 60 83% 1.0 aee04g48-197 36-75v 2.5v 4.5a 15 60 80% 0.5 aee04f48-197 36-75v 3.3v 4.5a 15 60 84% 0.5 aee04f48-17 36-75v 3.3v 4.5a 15 60 84% 0.5 aee04f48-7 36-75v 3.3v 4.5a 15 60 84% 0.5 aee04f48-97 36-75v 3.3v 4.5a 15 60 84% 0.5 aee03a48-197 36-75v 5v 3a 15 60 85% 0.5 aee03a48-7 36-75v 5v 3a 15 60 85% 0.5 aee03a48-97 36-75v 5v 3a 15 60 85% 0.5 aee03a48-17 36-75v 5v 3a 15 60 85% 0.5 aee01b48-197 36-75v 12v 1.25a 15 30 85% 0.5 aee01b48-17 36-75v 12v 1.25a 15 30 85% 0.5 aee01b48-7 36-75v 12v 1.25a 15 30 85% 0.5 aee01b48-97 36-75v 12v 1.25a 15 30 85% 0.5 note: the detailed informatin about model number can refer to the ?part number description? at the end of the manual. model input output output ripple noise efficiency input number voltage voltage current (mv rms) (mv pp) min current typ typ (a)
a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -5- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com absolute maximum rating input voltage(continuous) 48vin -0.3 80 vdc 24vin -0.3 40 vdc input voltage(peak/surge) 48vin -0.3 100 vdc 100ms non-repetitive 24vin -0.3 50 vdc 50ms non-repetitive case temperature* -40 100 c storage temperature -55 125 c input characteristics input voltage range 48vin 36 48 75 vdc 24vin 18 24 36 vdc input reflected current 5 10 map-p with external input filter circuit turn-off input voltage 48vin 30 33 35 vdc 24vin 14 16 17 vdc turn-on input voltage 48vin 31 34 36 vdc 24vin 15 17 18 vdc turn on time 5 20 ms cnt function logic high 3 10 vdc logic low 0 1.2 vdc control current -0.8 1.5 ma -0.8ma: -0.7v, 1.5ma: 10v general specifications mtbf** 1500 k hrs bellcore tr332, ta=25c, io=iomax isolation 1500 vdc pin solder temperature 260 c wave solder < 10 s hand soldering time 5 s iron temperature 425c weight 30 grams *: the case temperature for AEE04F24-197 is between -40c~ 95 c. **: the mtbf for 12v output products is 2000 khrs. characteristic min typ max units notes characteristic min typ max units notes characteristic min typ max units notes characteristic min typ max units notes
AEE04F24-197 output characteristics power 15 w output current 4.5 a output setpoint voltage 3.24 3.3 3.36 vdc vin=24v, io=4.5a line regulation 0.02 0.2 %vo vin=18~36v, io=4.5a load regulation 0.2 0.5 %vo io=0~4.5a, vin=24v dynamic response 50-75% load 2 5 %vo ta=25c, di/dt =1a/10s 100 200 s ta=25c, di/dt =1a/10s 50-25% load 2 5 %vo ta=25c, di/dt =1a/10s 100 200 s ta=25c, di/dt =1a/10s current limit threshold 5 5.5 7 a short circuit current 6.5 a efficiency 83 85 % vin=24v, io=4.5a, t a=25c trim range 90 110 %vo over voltage protection setpoint 3.8 4.2 v temperature regulation 0.04 %v o/c ripple (rms) 15 mv ( 0 to 20mhz bandwidth ) noise (p-p) 60 mv ( 0 to 20mhz bandwidth ) switching frequency 300 khz a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -6- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com characteristic min typ max units notes
a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -7- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com aee04g48-197 output characteristics power 11.25 w output current 4.5 a output setpoint voltage 2.45 2.5 2.55 vdc vin=48v, io=4.5a line regulation 0.02 0.2 %vo vin=36~75v, io=4.5a load regulation 0.2 0.5 %vo io=0~4.5a, vin=48v dynamic response 50-75% load 2 5 %vo ta=25c, di/dt =1a/10s 100 200 s ta=25c, di/dt =1a/10s 50-25% load 2 5 %vo ta=25c, di/dt =1a/10s 100 200 s ta=25c, di/dt =1a/10s current limit threshold 5 5.5 7.5 a short circuit current 7.5 a efficiency 80 83 % vin=48v, io=4.5a, t a=25c trim range 90 110 %vo over voltage protection setpoint 2.9 3.5 v temperature regulation 0.04 %v o/c ripple (rms) 15 mv ( 0 to 20mhz bandwidth ) noise (p-p) 60 mv ( 0 to 20mhz bandwidth ) switching frequency 300 khz characteristic min typ max units notes
aee04f48-197 output characteristics power 15 w output current 4.5 a output setpoint voltage 3.24 3.3 3.36 vdc vin=48v, io=4.5a line regulation 0.02 0.2 %vo vin=36~75v, io=4.5a load regulation 0.2 0.5 %vo io=0~4.5a, vin=48v dynamic response 50-75% load 2 5 %vo ta=25c, di/dt =1a/10s 100 200 s ta=25c, di/dt =1a/10s 50-25% load 2 5 %vo ta=25c, di/dt =1a/10s 100 200 s ta=25c, di/dt =1a/10s current limit threshold 5 5.5 7 a short circuit current 6 a efficiency 84 86 % vin=48v, io=4.5a, t a=25c trim range 90 110 %vo over voltage protection setpoint 3.8 4.2 v temperature regulation 0.04 %v o/c ripple (rms) 15 mv ( 0 to 20mhz bandwidth ) noise (pp) 60 mv ( 0 to 20mhz bandwidth ) switching frequency 300 khz a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -8- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com characteristic min typ max units notes
a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -9- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com aee03a48-197/-7/-97 output characteristics power 15 w output current 3 a output setpoint voltage 4.95 5 5.05 vdc vin=48v, io=3a line regulation 0.02 0.2 %vo vin=36~75v, io=3a load regulation 0.2 0.5 %vo io=0~3a, vin=48v dynamic response 50-75% load 2 5 %vo ta=25c, di/dt =1a/10s 100 200 s ta=25c, di/dt =1a/10s 50-25% load 2 5 %vo ta=25c, di/dt =1a/10s 100 200 s ta=25c, di/dt =1a/10s current limit threshold 3.8 4.4 5 a short circuit current 6 a efficiency 85 87 % vin=48v, io=3a, t a=25c trim range 90 110 %vo over voltage protection setpoint 5.8 6.5 v temperature regulation 0.04 %v o/c ripple (rms) 15 mv ( 0 to 20mhz bandwidth ) noise (pp) 60 mv ( 0 to 20mhz bandwidth ) switching frequency 300 khz characteristic min typ max units notes
aee01b48-197 output characteristics power 15 w output current 1.25 a output setpoint voltage 11.88 12 12.12 vdc vin=48v, io=1.25a line regulation 0.02 0.2 %vo vin=36~75v, io=1.25a load regulation 0.2 0.5 %vo io=0~1.25a, vin=48v dynamic response 50-75% load 1 5 %vo ta=25c, di/dt =1a/50s 100 200 s ta=25c, di/dt =1a/50s 50-25% load 1 5 %vo ta=25c, di/dt =1a/50s 100 200 s ta=25c, di/dt =1a/50s current limit threshold 1.4 1.6 2.0 a short circuit current 3 a efficiency 85 87 % vin=48v, io=1.25a, t a=25c trim range 90 110 %vo over voltage protection setpoint 13.8 15 v temperature regulation 0.04 %v o/c ripple (rms) 10 mv ( 0 to 20mhz bandwidth ) noise (pp) 30 mv ( 0 to 20mhz bandwidth ) switching frequency 250 khz a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -10- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com characteristic min typ max units notes
usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -11- characteristic curves characteristic curves (at 25 (at 25 c) c) io efficiency (%) vin=18v vin=24v vin=36v 60 65 75 80 85 90 70 012 345 typical efficiency aee04g48-197 012345 io efficiency (%) vin=36v vin=48v vin=75v 60 65 75 80 85 90 70 io efficiency (%) vin=36v vin=48v vin=75v 60 65 75 80 85 90 70 012 345 0 0.6 1.2 1.8 2.4 3 io efficiency (%) vin=36v vin=48v vin=75v 60 65 75 80 85 90 70 typical efficiency aee04f48-197 typical efficiency aee03a48-197/-8/-97 typical efficiency AEE04F24-197 0 0.3 0.6 0.9 1.2 1.5 io efficiency (%) vin=36v vin=48v vin=75v 60 65 75 80 85 90 70 typical efficiency aee01b48-197
usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com characteristic curves characteristic curves (at 25 (at 25 c) c) a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -12- typical output overcurrent characteristics AEE04F24-197 output voltage (volts) output curent (amps) 0 0.7 1.4 2.1 2.8 3.5 02468 vin=18v vin=24v vin=36v typical output overcurrent characteristics aee04g48-197 0 0.5 1 1.5 2 2.5 3 02468 output voltage (volts) output curent (amps) vin=36v vin=48v vin=75v output voltage (volts) output curent (amps) 0 0.7 1.4 2.1 2.8 3.5 0 2 4 6 8 vin=36v vin=48v vin=75v 0 1 2 3 4 5 6 0123456 output voltage (volts) output curent (amps) vin=36v vin=48v vin=75v typical output overcurrent characteristics aee04f48-197 typical output overcurrent characteristics aee03a48-197/-7/-97 0 3 6 9 12 15 0 0.5 1 1.5 2 2.5 3 output voltage (volts) output curent (amps) vin=36v vin=48v vin=75v typical output overcurrent characteristics aee01b48-197
characteristic curves characteristic curves (at 25 (at 25 c) c) a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -13- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com typical input current characteristics AEE04F24-197 input voltage (volts) input current (amps) 0.2 0.4 0.6 0.8 1.0 1.2 010203040 typical input current characteristics aee04f48-197 0.1 0.2 0.3 0.4 0.5 0.6 input voltage (volts) input current (amps) 020406080
a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -14- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com t t ransient response ransient response (rated input voltage, step load, at 25 c) (rated input voltage, step load, at 25 c) typical transient response to step load change from 50%-25%iomax AEE04F24-197 typical transient response to step load change from 50%-25%iomax aee04g48-197 typical transient response to step load change from 50%-25%iomax aee04f48-197 typical transient response to step load change from 50%-25%iomax aee03a48-197/-7/-97
t t ransient response ransient response (rated input voltage, step load, at 25 c) (rated input voltage, step load, at 25 c) a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -15- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com typical transient response to step load change from 50%-75%iomax AEE04F24-197 typical transient response to step load change from 50%-75%iomax aee04g48-197 typical transient response to step load change from 50%-75%iomax aee04f48-197 typical transient response to step load change from 50%-75%iomax aee03a48-197/-7/-97
characteristic curves characteristic curves (rated input voltage, full load, at 25 c) (rated input voltage, full load, at 25 c) a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -16- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com typical start-up from power on AEE04F24-197 typical start-up from power on aee04g48-197 typical start-up from power on aee04f48-197 typical start-up from power on aee03a48-197/-7/-97 typical start-up from power on aee01b48-197
characteristic curves characteristic curves (rated input voltage, full load, at 25 c) (rated input voltage, full load, at 25 c) a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -17- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com typical start-up from cnt control AEE04F24-197 typical start-up from cnt control aee04g48-197 typical start-up from cnt control aee04f48-197 typical start-up from cnt control aee03a48-197/-7/-97 typical start-up from cnt control aee01b48-197
characteristic curves characteristic curves (rated input voltage, full load, at 25 c) (rated input voltage, full load, at 25 c) a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -18- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com typical shut-down from cnt control AEE04F24-197 typical shut-down from cnt control aee04g48-197 typical shut-down from cnt control aee04f48-197 typical shut-down from cnt control aee03a48-197/-7/-97 typical shut-down from cnt control aee01b48-197
a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -19- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com pin location pin location the +vin and -vin input connection pins are located as shown in figure 1. aee low power high efficiency converters have a 2:1 input volt- age range of 18-36v and 36-75v. care should be taken to avoid applying reverse polarity to the input which can dam- age the converter. input characteristic input characteristic fusing fusing the aee low power high efficiency power modules have no internal fuse. an external fuse must always be employed! to meet international safety requirements, a 250 volt rated fuse should be used. if one of the input lines is connected to chassis ground, then the fuse must be placed in the other input line. standard safety agency regulations require input fusing. recommended fuse ratings for aee low power high efficiency are shown in table 1. t t able 1 able 1 input reverse v input reverse v oltage protection oltage protection under installation and cabling conditions where reverse polarity across the input may occur, reverse polarity protection is recommended. protection can easily be provided as shown in figure 2. in both cases the diode rating is deter- mined by the power of the converter. diodes should be rated at 2a for 24vin, 1a for 48vin. placing the diode across the inputs rather than in-line with the input offers an advan- tage in that the diode only conducts in a reverse polarity condition, which increases circuit efficiency and thermal performance. input undervoltage protection input undervoltage protection the aee low power high efficiency series is protected against undervoltage on the input. if the input voltage drops below the acceptable range, the converter will shut down. it will auto- matically restart when the undervoltage condi- tion is removed. standoff typ,4 places fig.1 pin location series fuse rating 24vin 2a 48vin 1a +vin -vin +vin -vin fig.2 reverse polarity protection circuits pin side view
a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -20- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com input filter input filter input filters are included in the converters to help achieve standard system emissions certifi- cations. some users however, may find that additional input filtering is necessary. the aee low power high efficiency series has an internal switching frequency of 300 khz (250 khz for aee01b48), so a high frequency capacitor mounted close to the input terminals produces the best results. to reduce reflected noise, a filter can be added to the input as shown in figure 3. the parameters are referred to the page 3. for conditions where emi is a concern, a differ- ent input filter can be used. figure 4 shows an input filter designed to reduce emi effects. l1 is a 5mh common mode choke. when a filter inductor is connected in series with the power converter input, an input capac- itor c 1 should be added. an input capacitor c 1 should also be used when the input wiring is long, since the wiring can act as an inductor. failure to use an input capacitor under these conditions can produce large input voltage spikes and an unstable output. cnt function cnt function two cnt logic options are available. the cnt logic, cnt voltage and the module working state is as the following table 2. n--- means ?negative logic? p--- means ?positive logic? l--- means ?low voltage?, -0.7v [ l [ 1.2v h--- means ?high voltage?, 3v [ h [ 10v on--- means ?module is on? off--- means ?module is off? open--- means ? cnt pin is left open ? note: the v cnt [ 10v the following figure 5 to 8 are a few simple cnt control circuits. +v in -v in c 1 c 0 l 1 fig.3 ripple rejection input filter +v in -v in c 1 l 1 47uf/ 100v 4700pf 2000v 4700pf 2000v 47uf/100v fig.4 emi reduction input filter -v in cnt 1000pf -v in cnt 1000pf -v in cnt -v in cnt 1000pf fig.8 relay control fig.5 simple control fig.6 transistor control fig.7 isolated control t t able 2 able 2 l h open n on on off off off off p off off on on on on
a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -21- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com input-output characteristic input-output characteristic safety consideration safety consideration for safety-agency approval of the system in which the power module is used, the power module must be installed in compliance with the spacing and separation requirements of the end-use safety agency standard, i.e., ul1950, csa c22.2 no. 950-95, and en60950. the input-to-output 1500vdc isolation is an opera- tional insulation. the dc/dc power module should be installed in end-use equipment, in compliance with the requirements of the ulti- mate application, and is intended to be supplied by an isolated secondary circuit. when the sup- ply to the dc/dc power module meets all the requirements for selv(<60vdc), the output is considered to remain within selv limits (level 3). if connected to a 60vdc power system, dou- ble or reinforced insulation must be provided in the power supply that isolates the input from any hazardous voltages, including the ac mains. one vinput pin and one voutput pin are to be grounded or both the input and output pins are to be kept floating. single fault testing in the power supply must be performed in com- bination with the dc/dc power module to demonstrate that the output meets the require- ment for selv. the input pins of the module are not operator accessible. note : do not ground either of the input pins of the module, without grounding one of the output pins. this may allow a non-selv voltage to appear between the output pin and ground. output characteristics output characteristics minimum load requirements minimum load requirements there no minimum load required for the aee low power high efficiency series. output t output t rimming rimming users can increase or decrease the output volt- age set point of a module by connecting an external resistor between the trim pin. the trim resistor should be positioned close to the module. if not using the trim feature, leave the trim pin open. trimming up by more than 10% of the nominal output may damage the converter or trig the ovp protection. trimming down more than 10% can cause the converter to regulate improperly. trim down and trim up circuits and the corresponding configuration are shown in figure 9 to figure 10. note that at elevated output voltages the maximum power rating of the module remains the same, and the output current capability will decrease correspondingly. +v out -v out trim load r up where k = v o - v nom v nom ( k ? ) 3.3v output: r up = 0.78 k - 6.2 5v output: r up = 1.88 k - 10 12v output: r up = 1.99 k - 16 2.5v output: r up = 0.62 k - 3.9 ( k ? ) ( k ? ) ( k ? ) fig.9 circuit configuration and equation to trim up output voltage +v out -v out trim load r d where k = v o - v nom v nom ( ? ) 3.3v output: r d = 1.27 k - 8.25 5v output: r d = 5.63 k - 17.5 12v output: r d = 7.54 k - 25.53 2.5v output: r d = 0.62 k - 5.14 ( ? ) ( ? ) ( ? ) fig.10 circuit configuration and equation to trim down output voltage
a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -22- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com output over-current protection output over-current protection aee low power high efficiency series dc/dc converters feature foldback current limiting as part of their overcurrent protection (ocp) cir- cuits. when output current exceeds 110 to 140% of rated current, such as during a short circuit condition, the module will work on inter- mittent mode, also can tolerate short circuit conditions indefinitely. when the overcurrent condition is removed, the converter will auto- matically restart. output filters output filters when the load is sensitive to ripple and noise, an output filter can be added to minimize the effects. a simple output filter to reduce output ripple and noise can be made by connecting a capacitor c2 across the output as shown in figure 11. the recommended value for the out- put capacitor c2 is 100 f/25v. extra care should be taken when long leads or traces are used to provide power to the load. long lead lengths increase the chance for noise to appear on the lines. under these con- ditions c2 can be added across the load, with a 0.1 f/50v ceramic capacitor c3 in parallel gen- erally as shown in figure 12. decoupling decoupling noise on the power distribution system is not always created by the converter. high speed analog or digital loads with dynamic power demands can cause noise to cross the power inductor back onto the input lines. noise can be reduced by decoupling the load. in most cases, connecting a 10 f tantalum capacitor in paral- lel with a 0.1 f ceramic capacitor across the load will decouple it. the capacitors should be connected as close to the load as possible. ground loops ground loops ground loops occur when different circuits are given multiple paths to common or earth ground, as shown in figure 13. multiple ground points can slightly different potential and cause current flow through the circuit from one point to another. this can result in additional noise in all the circuits. to eliminate the problem, circuits should be designed with a single ground con- nection as shown in figure 14. output over-v output over-v oltage protection oltage protection the over-voltage protection has a separate feedback loop which activates when the output voltage is between 120% and 140% of the nominal output voltage. +v out -v out load c + 2 fig.11 output ripple filter +v out -v out load c 3 c 2 + fig.12 output ripple filter for a distant load +vout -vout load load r line r line r line r line r line r ground loop ( ) com fig.13 ground loops fig.14 single point ground load load r line r line r line r line r line +vout -vout ( ) com
a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -23- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com parallel power distribution parallel power distribution figure 15 shows a typical parallel power distri- bution design. such designs, sometimes called daisy chains, can be used for very low output currents, but are not normally recommended. the voltage across loads far from the source can vary greatly depending on the ir drops along the leads and changes in the loads clos- er to the source. dynamic load conditions increase the potential problems. radial power distribution radial power distribution radial power distribution is the preferred method of providing power to the load. figure 16. shows how individual loads are connected directly to the power source. this arrangement requires additional power leads, but it avoids the voltage variation problems associated with the parallel power distribution technique. mixed distribution mixed distribution in the real world a combination of parallel and radial power distribution is often used. dynamic and high current loads are connected using a radial design, while static and low current loads can be connected in parallel. this combined approach minimizes the drawbacks of a parallel design when a purely radial design is not feasi- ble. redundant operation redundant operation a common requirement in high reliability sys- tems is to provide redundant power supplies. the easiest way to do this is to place two con- verters in parallel, providing fault tolerance but not load sharing. oring diodes should be used to ensure that failure of one converter will not cause failure of the second. figure 18 shows such an arrangement. upon application of power, one of the converters will provide a slightly higher output voltage and will support the full load demand. the second converter will see a zero load condition and will ?idle?. if the first converter should fail, the second converter will support the full load. when designing redundant converter circuits, shottky diodes should be used to minimize the forward voltage drop. the voltage drop across the shottky diodes must also be considered when deter- mining load voltage requirements. load 1 load 2 load 3 +vout -vout r l1 r l2 r l3 r g1 r g2 r g3 i 1 + i 2 + i 3 i 2 + i 3 i 3 r l = lead resistance r g = ground lead resistance fig.15 parallel power distribution load 1 load 2 load 3 +vout -vout r l1 r l2 r l3 r g1 r g2 r g3 r l = lead resistance r g = ground lead resistance fig.16 radial power distribution load 1 load 2 load 3 +vout -vout r l1 r l2 r l3 r g1 r g2 r g3 r l = lead resistance r g = ground lead resistance load 4 r l4 r g4 fig.17 mixed power distribution +v out -v out +v out -v out load fig.18 redundant operation
a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -24- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com module derating module derating t t ypical derating curves ypical derating curves aee low power high ef aee low power high ef ficiency series ficiency series mechanical considerations mechanical considerations installation installation although aee low power high efficiency series can be mounted in any orientation, free air-flowing must be taken. normally power components are always put at the end of the airflow path or have the separate airflow paths. this can keep other system equipment cooler and increase component life spans. soldering soldering aee low power high efficiency series are compatible with standard wave soldering techniques. when wave soldering, the converter pins should be preheated for 20-30 seconds at 110 c, and wave sol- dered at 260c for less than 10 seconds. when hand soldering, the iron temperature should be maintained at 4 25c and applied to the con- verter pins for less than 5 seconds. longer exposure can cause internal damage to the converter. cleaning can be performed with cleaning solvent ipa or with water. forced convection power derating output current (%vnom) 50 60 70 80 90 100 33 100 66 a ( c) 110 40 2.0 ms ?1 (400 ft./min.) 3.0 ms ?1 (600 ft./min.) 1.0 ms ?1 (200 ft./min.) natural convection maximum case temperature max ambient temperature, t 0
a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -25- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com mtbf mtbf the mtbf, calculated in accordance with bellcore tr-nwt-000332 is 1,500,000 hours. obtaining this mtbf in practice is entirely possible. if the ambient air temperature is expected to exceed +25c, then we also advise an oriented for the best possible cooling in the air stream. astec can supply replacements for converters from other manufacturers, or offer custom solutions. please contact the company for details. mechanical chart mechanical chart (pin side view) (pin side view) 0.6(0.02) 1.2(0.05) 0.5(0.02) 10.16(0.4) 6 1.0(0.039) 6.10(0.24) standoff typ,4 places 15.24(0.60) 7.62 (0.3) 2.54(0.10) 2.54(0.10) 10.16(0.40) 5.08(0.20) 10.16(0.40) 10.16(0.40) 25.4(1.00) 20.32(0.80) 50.8(2.00) (optional) (optional) (optional) tolerances: inches millimeters .xx ! 0.020 .x ! 0.5 .xxx ! 0.010 .xx ! 0.25 pins >4mm ! 0.02inch ( ! 0.5mm) <4mm ! 0.01inch ( ! 0.25mm)
a a a a e e e e e e e e l l l l o o o o w w w w p p p p o o o o w w w w e e e e r r r r h h h h i i i i g g g g h h h h e e e e f f f f f f f f i i i i c c c c i i i i e e e e n n n n c c c c y y y y s s s s e e e e r r r r i i i i e e e e s s s s d d d d c c c c - - d d d d c c c c c c c c o o o o n n n n v v v v e e e e r r r r t t t t e e e e r r r r s s s s 1 1 1 1 8 8 8 8 v v v v d d d d c c c c t t t t o o o o 3 3 3 3 6 6 6 6 v v v v d d d d c c c c & & & & 3 3 3 3 6 6 6 6 v v v v d d d d c c c c t t t t o o o o 7 7 7 7 5 5 5 5 v v v v d d d d c c c c i i i i n n n n p p p p u u u u t t t t , , , , 1 1 1 1 5 5 5 5 w w w w a a a a t t t t t t t t o o o o u u u u t t t t p p p p u u u u t t t t -26- usa europe asia tel: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 fax: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com

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