View AET02AA24_7012227.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

a a e e t t 2 2 4 4 v v & & 4 4 8 8 v v i i n n p p u u t t s s e e r r i i e e s s 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 single and dual output series single and dual output series 20w dc-dc converter 20w dc-dc converter (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: 20020627
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 page 1 aet technical description the aet series of switching dc-dc converters is one of the most cost effective options available in component power. the aet uses an industry standard package size and pinout configuration, provides standard control, trim, func- tions. aet converters come in 24v or 48v input versions, each of which uses a 2:1 input range. outputs are isolated from the input and the converters are capa- ble of providing up to 20 watts of output power. at startup, input current passes through an input filter designed to help meet cispr 22 level a radiated emissions, and bellcore gr1089 conducted emis- sions. a fuse should be used in line with the input. the aet converters are pulse width modulated (pwm) and operate at a nominal fixed frequency of 280 khz. feedback to the pwm controller uses an opto-isolator, maintaining complete isolation between primary and sec- ondary. caution should be taken to avoid ground loops when connecting the converter to ground. output power is typically available within 10 ms after application of input power. aet series electrical input input the +vin and -vin pins are located as shown in the mechanical drawings at the end of this man- ual. aet converters have a 2:1 input voltage range; 24 vin converters can accept 18-36 vdc, and 48 vin converters can accept 36-72 vdc. care should be taken to avoid applying reverse polarity to the converters which can damage the converter. fig. 1. aet single output block diagram fig. 2. aet dual output block diagram a a a a e e e e t t t t 2 2 2 2 4 4 4 4 v v v v & & & & 4 4 4 4 8 8 8 8 v v v v i i i i n n n n p p p p u u u u t t t t 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 s s s s i i i i n n n n g g g g l l l l e e e e a a a a n n n n d d d d d d d d u u u u a a a a l l l l 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 2 2 2 0 0 0 0 w w w w 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
page 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 a a a a e e e e t t t t 2 2 2 2 4 4 4 4 v v v v & & & & 4 4 4 4 8 8 8 8 v v v v i i i i n n n n p p p p u u u u t t t t 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 s s s s i i i i n n n n g g g g l l l l e e e e a a a a n n n n d d d d d d d d u u u u a a a a l l l l 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 2 2 2 0 0 0 0 w w w w 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 input reverse voltage 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 3. in both cases the diode used is rated for 3a/100v. placing the diode across the inputs rather than in-line with the input offers an advantage in that the diode only conducts in a reverse polarity condition, which increases circuit efficiency and thermal performance. input undervoltage protection the aet is protected against undervoltage on the input. if the input voltage should drop below the acceptable range, the converter will shut down. it will automatically restart when the unvervoltage condition is removed. input filter input filters are included in the converters to help achieve standard system emissions certifications. some users however, may find that additional input filtering is necessary. the aet series has an internal switching frequency of 280 khz so a high frequency capacitor mounted close to the input terminals pro- duces the best results. to reduce reflected noise, a capacitor can be added across the input as shown in figure 4, forming a filter. a 47 f/100v electrolytic capacitor is recommended for c1. for conditions where emi is a concern, a dif- ferent input filter can be used. figure 5 shows an input filter designed to reduce emi effects. l1 is a 1mh common mode inductor, c 1 is a 47 f/100v electrolytic capacitor, and c 2 is a 1 f/100v metal film or ceramic high frequen- cy capacitor, and c y1 and c y2 are each 4700pf high frequency ceramic capacitors. when a filter inductor is connected in series with the power converter input, an input capacitor 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 pro- duce large input voltage spikes and an unstable output. +vin -vin c1 +v in -v in c 1 c 2 c y1 c y2 l 1 +vin -vin r e v e r se p o lari ty pr otect i o n fig. 4. ripple rejection input filter fig. 5. emi reduction input filter +vin -vin fig. 3. reverse polarity protection circuits
page 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 a a a a e e e e t t t t 2 2 2 2 4 4 4 4 v v v v & & & & 4 4 4 4 8 8 8 8 v v v v i i i i n n n n p p p p u u u u t t t t 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 s s s s i i i i n n n n g g g g l l l l e e e e a a a a n n n n d d d d d d d d u u u u a a a a l l l l 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 2 2 2 0 0 0 0 w w w w 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 input fusing standard safety agency regulations require input fusing. recommended fuse ratings for the aet series are shown in table 1. aet series electrical output output connections (+vout, -vout) outputs on the aet series are isolated from the input and can therefore be left to float or can be grounded. pin connections for +vout, and -vout are shown in the mechanical drawings at the end of this manual. sharing power between dual outputs each output of a dual output aet is limited to one half of the total power capacity of the converter. for example, if the positive output of an aet01cc48 only draws 5w, the negative output will still be limited to 10w. voltage regulation performance is best when the outputs are balanced. figure 6 shows typical cross regulation for a 5 volt output. overcurrent protection (ocp) aet series dc/dc converters feature fold- back current limiting as part of their overcurrent protection (ocp) circuits. when output current exceeds 110 to 150% of rated current, such as during a short cir- cuit condition, the output will shutdown immediately, and can tolerate short circuit conditions indefinitely. when the overcur- rent condition is removed, the converter will automatically restart. overvoltage protection (ovp) the aet series provides overvoltage protection on the output, which will shut the output off if the voltage exceeds 120 to 140% of the nominal output voltage. if the ovp circuit activates, power to the converter should be cycled to turn the converter back on. aet02b24 aet01c24 fig. 7. overcurrent performance AET02AA24 -io=max aet02aa48 -io=max AET02AA24 -io=0.01a aet02aa48 -io=0.01a -vo (v) +io (a) fig. 6. cross regulation nominal input fuse 24v 4a 48v 2a table 1. fuse ratings
page 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 a a a a e e e e t t t t 2 2 2 2 4 4 4 4 v v v v & & & & 4 4 4 4 8 8 8 8 v v v v i i i i n n n n p p p p u u u u t t t t 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 s s s s i i i i n n n n g g g g l l l l e e e e a a a a n n n n d d d d d d d d u u u u a a a a l l l l 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 2 2 2 0 0 0 0 w w w w 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 trim the +vo output voltage of the aet series can be trimmed using the trim pin provided. applying a voltage to the trim pin through a voltage divider from the output will cause the +vo output to increase or decrease by up to 10%. trimming up by more than 10% of the nominal output may acti- vate the ovp circuit or damage the converter. trimming down more than 10% can cause the converter to regulate improperly. if the trim pin is not needed, it should be left open. fixed and variable trim circuits are shown in figures 8 to 10. note that resistor values will change depending on the converter used. for trim ranges not listed, contact the factory for assistance. cnt function the aet provides a control function allowing the user to turn the output on and off using an exter- nal circuit. applying a voltage less than 4v to the cnt pin will disable the output, while applying a voltage greater than 7v will enable it. the performance of the converter between these two points will depend on the individual converter and whether the control voltage is increasing or decreasing. if the cnt pin is left open, the converter will default to ?control on? and the output can be turned on. the maximum voltage that can be applied to the cnt pin is 80 volts. 1.27 3.3v out: r 1 = y - 2.03 1.25 5v out: r 1 = y - 2.49 7.49 12v out: r 1 = y - 9.46 10.38 15v out: r 1 = y - 12.45 where y = v e - v o v e single output converters 1.25 5v out: r 1 = y - 2.49 7.49 12v out: r 1 = y - 9.46 10.38 15v out: r 1 = y - 12.45 dual output converters all resistor values in k ? +v out com tr i m load r 1 +v out -v out tr i m load fig. 10. fixed trim down ! " #$%&' ()
*$%&' () +$$))(*$) , ? 0.77 1.97 1.97 2.08 +v out com tr i m load r 2 +v out -v out tr i m load r 1 fig. 9. fixed trim up -v in cnt fig. 11. simple control circuit -v in cnt fig. 12. transistor control circuit -v in cnt fig. 13. isolated control circuit -v in cnt fig. 14. relay control circuit +v out -v out (com)* tr i m load r 1 r 2 r t = 100k ? all resistor values in k ? 10% 5% r1 r2 r1 r2 3.3v out 5v out 8.6 11 16 22 12v out 47 12 86 22 15v out 6812 120 22 single output converters 10% 5% r1 r2 r1 r2 5v out 33 12 63 22 12v out 120 11 200 20 15v out 150 10 270 20 dual output converters note: com pin is for dual output converters, and -vout pin is for single output converter. fig. 8. variable trim
page 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 a a a a e e e e t t t t 2 2 2 2 4 4 4 4 v v v v & & & & 4 4 4 4 8 8 8 8 v v v v i i i i n n n n p p p p u u u u t t t t 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 s s s s i i i i n n n n g g g g l l l l e e e e a a a a n n n n d d d d d d d d u u u u a a a a l l l l 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 2 2 2 0 0 0 0 w w w w 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 output filters when the load is sensitive to ripple and noise, an output fil- ter can be added to minimize the effects. a simple output fil- ter to reduce output ripple and noise can be made by con- necting a capacitor across the output as shown in figure 15. the recommended value for the output capacitor is 100 f. 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 conditions c2 can be added across the load as shown in figure 16. the recommended component for c2 is 1 f ceramic capacitor. 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 parallel 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. series operation when converters are connected in series to increase the out- put voltage, diodes should be added as shown in figure 17. choose low forward voltage drop diodes, such as shottky diodes. the reverse voltage of the diode should be greater than the output voltage, and the diode?s turn-on current should be greater than the series load current. the maximum operating output current of the series connection should not be greater than the maximum output current of any single converter. parallel operation under most circumstances, paralleling converters is not desireable. when more power is required, a higher power converter will usually use less space and will cost less than using two lower power converters. one common exception is when redundancy or graceful degradation is required. in this case, multiple converters should be used. please see the discussion on redundant operation in the design considerations section for further information. +v out -v out load c 1 c 2 fig. 16. output ripple filter for a distant load +v out -v out +v in -v in +v out -v out +v in -v in load fig. 17. series operation +v out -v out +v in -v in load c 1 fig. 15. output ripple filter
page 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 a a a a e e e e t t t t 2 2 2 2 4 4 4 4 v v v v & & & & 4 4 4 4 8 8 8 8 v v v v i i i i n n n n p p p p u u u u t t t t 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 s s s s i i i i n n n n g g g g l l l l e e e e a a a a n n n n d d d d d d d d u u u u a a a a l l l l 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 2 2 2 0 0 0 0 w w w w 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 design considerations parallel power distribution figure 18 shows a typical parallel power distribution 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 closer to the source. dynamic load conditions increase the potential problems. radial power distribution radial power distribution is the preferred method of pro- viding power to the load. figure 19 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 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 paral- lel design when a purely radial design is not feasible. redundant operation a common requirement in high reliability systems is to provide redundant power supplies. the easiest way to do this is to place two converters 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 21 shows such an arrangement. upon application of power, one of the con- verters will provide a slightly higher output voltage and will support the full load demand. the second conveter 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 determining load voltage requirements. 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. 19. radial 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. 20. mixed distribution +v out -v out +v out -v out load fig 21. redundant operation 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. 18. parallel power distribution
page 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 a a a a e e e e t t t t 2 2 2 2 4 4 4 4 v v v v & & & & 4 4 4 4 8 8 8 8 v v v v i i i i n n n n p p p p u u u u t t t t 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 s s s s i i i i n n n n g g g g l l l l e e e e a a a a n n n n d d d d d d d d u u u u a a a a l l l l 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 2 2 2 0 0 0 0 w w w w 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 ground loops ground loops occur when different circuits are given multiple paths to common or earth ground, as shown in figure 22. multiple ground points can have 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 connec- tion as shown in figure 23. hot plugging when a power source or load is inserted or removed from a system while the system is opera- tional, it is called ?hot plugging?. designing a system for hot plug operation is challenging and sev- eral issues should be considered. the input to a converter is largely capacitive and it will draw a high inrush current when power is first applied. this will place a large demand on the power bus which must be designed to handle the current spike. it also presents the risk of arcing when the converter is connected. a common way to minimize inrush current is to disable the output until after the inrush current has subsided. disabling the output eliminates power draw from the converter and reduces capacitor charge times. the output only has to be disabled for a very short time and can usually be done through mechanical connections. making the input connections physically longer lets them con- nect first and initiate the inrush current. when the shorter output or output enable connections are made, the inrush has already subsided. +vout -vout load load r line r line r line r line r line fig. 23. single point ground +vout -vout load load r line r line r line r line r line r line ground loop fig. 22 ground loops
page 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 a a a a e e e e t t t t 2 2 2 2 4 4 4 4 v v v v & & & & 4 4 4 4 8 8 8 8 v v v v i i i i n n n n p p p p u u u u t t t t 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 s s s s i i i i n n n n g g g g l l l l e e e e a a a a n n n n d d d d d d d d u u u u a a a a l l l l 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 2 2 2 0 0 0 0 w w w w 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 aet series mechanical considerations thermal derating aet single and dual output converters are rated for full power up to a case temperature of 95c. under typical conditions this equates to an ambient tem- perature of 65c. for operation above ambient air temperatures of 65c, output power must be derat- ed as shown in figure 24, or airflow over the con- verter must be provided. when airflow is provided, the case temperature should be used to determine maximum temperature limits. the minimum operat- ing temperature for the aet is -25c. operation at temperatures as low as -40c is possible, but out- put performance below -25c is not specified. installation aet series converters can be mounted in any orientation, but care should be taken to allow for free airflow. common placement techniques put heat sources such as power components at the end of the airflow path or provide separate airflow paths. this arrangement keeps other system equipment cooler and increases component life spans. soldering aet series converters are compatible with standard wave soldering techniques. when wave sol- dering, the converter pins should be preheated for 20-30 seconds at 110c, and wave soldered at 260c for less than 15 seconds. when hand soldering, the iron temperature should be maintained at 450c and applied to the converter pins for less than 5 seconds. longer exposure can cause internal damage to the con- verter. cleaning can be performed with cleaning solvent ipa or with water. 0 20 40 60 80 100 70 60 50 40 30 20 10 0 -10 -20 ambient temperature ( o c) percent maximum output power safe operating area av20 temperature derating 80 90 100 maximum case temperature fig. 24. temperature derating (aet04f48-8, aet04a48-8)
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 a a a a e e e e t t t t 2 2 2 2 4 4 4 4 v v v v & & & & 4 4 4 4 8 8 8 8 v v v v i i i i n n n n p p p p u u u u t t t t 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 s s s s i i i i n n n n g g g g l l l l e e e e a a a a n n n n d d d d d d d d u u u u a a a a l l l l 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 2 2 2 0 0 0 0 w w w w 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 page 9 aet single output +vin -vin cnt +vo -vo trim 10.16 (0.40) 2.54 (0.10) 5.36 (0.21) 45.72 (1.80) 50.8 (2.00) 40.6 (1.60) 10.16 (0.40) 5.08 (0.20) 5.3 (0.21) 9.66 (0.38) 6- 1.0 (0.039) standoff typ, 4 places 3.0 (0.12) 2.4 (0.09) 0.5 (0.02) 10.16 (0.40) 5.08 (0.20) 7.62 (0.30) electrical specs nominal output output short circuit overvoltage input voltage current current ripple noise efficiency lockout (v) (v) (a) (a) (mv rms) (mv pp) (%) (v) typ typ max typ max min typ min max aet04f24 24 3.3 4 5.4 10 30 50 120 78 80 4.2 5.2 aet04a24 24 5 3.3 5 10 30 50 120 81 83 6 8 aet02b24 24 12 1.67 2.7 10 30 80 150 84 86 15 20 aet01c24 24 15 1.33 2 10 30 80 150 84 87 18 22 aet04f48-8 48 3.3 4 5.4 10 30 50 120 78 80 4.2 5.2 aet04a48-8 48 5 4 5 10 30 50 120 81 83 6 8 aet02b48 48 12 1.67 2.7 10 30 80 150 84 87 15 20 aet01c48 48 15 1.33 2 10 30 80 150 84 87 18 22 AET02AA24 24 5 1.65 2.4 10 20 80 100 81 83 6 8 aet01bb24 24 12 0.84 1.5 10 20 80 100 84 86 16 17 aet01cc24 24 15 0.67 1.1 10 20 80 100 84 85 19 21 aet02aa48 48 5 1.65 2.7 10 20 80 100 82 83 6 8 aet01bb48 48 12 0.84 1.4 10 20 80 100 84 86 16 17 aet01cc48 48 15 0.67 1.2 10 20 80 100 84 88 19 21 +vin -vin cnt com -vo trim 10.16 (0.40) 2.54 (0.10) 5.36 (0.21) 45.72 (1.80) 50.8 (2.00) 40.6 (1.60) 10.16 (0.40) 5.08 (0.20) 5.3 (0.21) 9.66 (0.38) 7- 1.0 (0.039) standoff typ, 4 places 3.0 (0.12) 2.4 (0.09) 0.5 (0.02) 10.16 (0.40) 5.08 (0.20) 7.62 (0.30) 10.16 (0.40) +vo aet dual output
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 t t t t 2 2 2 2 4 4 4 4 v v v v & & & & 4 4 4 4 8 8 8 8 v v v v i i i i n n n n p p p p u u u u t t t t 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 s s s s i i i i n n n n g g g g l l l l e e e e a a a a n n n n d d d d d d d d u u u u a a a a l l l l 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 2 2 2 0 0 0 0 w w w w 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 page 10 common specs input min nom max units notes input voltage 18 24 36 vdc 50 vdc max < 100 ms 36 48 72 vdc 100 vdc max < 100 ms isolation input-output 500 vdc input-case 500 vdc output-case 500 vdc i/o isolation restistance 300 m ? control voltage 80 vdc absolute maximum control logic logic low = off 4 vdc logic high = on 7 vdc control current 1.8 ma undervoltage shutdown 24 vin 13 15 17 vdc 48 vin 30 32 34 vdc output power 20 w voltage setpoint accuracy 1 %vo line regulation 0.02 0.2 %vo load regulation 0.1 0.5 %vo trim range -10 +10 %vo dynamic response 50-75% load 5 %vo t=25c, di/dt=1a/10s 200 s t=25c, di/dt=1a/10s 50-25% load 5 %vo t=25c, di/dt=1a/10s 200 s t=25c, di/dt=1a/10s temperature regulation 0.02 %v o/c general mtbf 2,400 k hrs bellcore tr332, 25c case temperature -25 95 c storage temperature -45 85 c switching frequency 280 khz pin solder temperature 260 c wave solder<15s hand soldering time 5 s iron temperature 450c weight 48 grams
page 11 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 t t t t 2 2 2 2 4 4 4 4 v v v v & & & & 4 4 4 4 8 8 8 8 v v v v i i i i n n n n p p p p u u u u t t t t 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 s s s s i i i i n n n n g g g g l l l l e e e e a a a a n n n n d d d d d d d d u u u u a a a a l l l l 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 2 2 2 0 0 0 0 w w w w 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 aet04f24 aet04a24 aet02b24 aet01c24 aet04f24 aet04a24 aet02b24 aet01c24 aet single output typical startup delay from cnt on aet single output typical turn off delay from cnt off aet-s performance curves (48v rated input, full load, at 25c) aet04f48-8 aet04a48-8 aet02b48 aet01c48 aet04f48-8 aet04a48- 8 aet02b48 aet01c48
page 12 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 t t t t 2 2 2 2 4 4 4 4 v v v v & & & & 4 4 4 4 8 8 8 8 v v v v i i i i n n n n p p p p u u u u t t t t 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 s s s s i i i i n n n n g g g g l l l l e e e e a a a a n n n n d d d d d d d d u u u u a a a a l l l l 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 2 2 2 0 0 0 0 w w w w 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 aet02b24 aet01c24 aet04f24 aet04a24 aet01c24 aer01c24 aet-s performance curves (48v rated input, full load, at 25c) aet04f48-8 aet04a48-8 aet02b48 aet01c48
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 t t t t 2 2 2 2 4 4 4 4 v v v v & & & & 4 4 4 4 8 8 8 8 v v v v i i i i n n n n p p p p u u u u t t t t 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 s s s s i i i i n n n n g g g g l l l l e e e e a a a a n n n n d d d d d d d d u u u u a a a a l l l l 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 2 2 2 0 0 0 0 w w w w 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 page 13 AET02AA24 aet01bb24 aet01cc24 AET02AA24 aet01bb24 aet01cc24 aee dual output typical startup delay from cnt on aee dual output typical turn off delay from cnt off aet-d performance curves (48v rated input, full load, at 25c) aet02aa48 aet01bb48 aet01cc48 aet02aa48 aet01bb48 aet01cc48
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 t t t t 2 2 2 2 4 4 4 4 v v v v & & & & 4 4 4 4 8 8 8 8 v v v v i i i i n n n n p p p p u u u u t t t t 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 s s s s i i i i n n n n g g g g l l l l e e e e a a a a n n n n d d d d d d d d u u u u a a a a l l l l 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 2 2 2 0 0 0 0 w w w w 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 page 14 aet01bb24 aet01cc24 +vo (v) output current (a), +io = -io AET02AA24 aet02aa48 +vo (v) output current (a), +io = -io aet01bb24 -io=max aet01bb48 -io=max aet01bb24 -io=0.01a aet01bb48 -io=0.01a -vo (v) +io (a) -vo (v) +io (a) aet01cc24 -io=max aet01cc48 -io=max aet01cc24 -io=0.01a aet01cc48 -io=0.01a aet-d performance curves (48v rated input, full load, at 25c) AET02AA24 -io=max aet02aa48 -io=max AET02AA24 -io=0.01a aet02aa48 -io=0.01a -vo (v) +io (a) aet01bb48 aet01cc48 +vo (v) output current (a), +io = -io
part number description ss pp c -0 iv l- xxx f yy h n - p - mx -options p = pin length omit this digit for standard 5mm 6 = 3.8mm, 7= 5.8mm iv = input voltage 8 = 2.8mm 05 = range centered on 5v 12 = range centered on 12v enable logic polarity 24 = 18 to 36(2:1), 9 to 36v(4:1) omit for positive enable logic 36 = 20 to 60v n = negative enable 46 = 18v to 75v (4:1) except: ak60c-20h, bk60c-30h 48 = typ 36 to 75v omit for negative logice p = positive logic c = pinout compatability a= astec footprint or "non lucent" footprint h = high efficiency (synch rect.) c= ind std, exact lucent drop in omit h if conventional diode (low eff) yy = output current pp = package type ie. 08 = 8 amps 40 = 1" x 2" smd 42 = 1.5" x 2" smd f = # of outputs 45 = 1.45" x 2.3" (1/4 brk) f = single output 60 = 2.4" x 2.3" (1/2 brk) d = dual output 80 = full size 4.6" x 2.4" 72= 2.35" x 3.3 (3/4 brk) xxx = output voltage format is xx.x (ie 1.8v = 018) ss = series aa = 1/2brick dual (old designator) ak = ind std sizes (1/4, 1/2, full) <150w mx = options am/bm = full size, astec pin out m1,m2 = .25" height heatsink al = half size, astec pin-out m3,m4 = .5" height heatsink bk = ind std size =>150w or feature rich m5.m6 = 1.0" height heatsink av = avansys product note: for some products, they may not conform with the part number description above absolutely. revision q attachment i page 1 of 2
new part number description acs ii v 1 v 2 v 3 v in - e t p mx output voltage a = 5.0v e = 7.5v f = 3.3v b = 12v, c = 15v g = 2.5v l = 8v , h = 24v, r = 28v d = 2.0v / 2.1v omit v2 and v3 if single output y = 1.8v omit v3 if dual output m = 1.5v ie for dual output 5 and 3.3v k = 1.2v v1 =a, v2 = f, v3 =omit j = 0.9v v1 =a, v2 = f, v3 =omit ii = output current max ie 60 = 60 amps vin = input voltage range 300 = 250v to 450v s = size 48 = 36v to 75v f = full brick 24 = 18v to 36v h = half brick 03 = 1.8v to 5.0v q = quarter brick 08 = 5.0v to 13.0v s = 1 x 2 18 pin smt pfc: power factor corrected e = 1 x 2 thru hole c = (.53x1.3x.33) smt (austin lite drop in) e = enable logic for > 15w v = conventional package (2x2.56") or ( omit this digit for positive enable a = sip n = negative logic w = convent pkg (wide 2.5x3) e = enable logic for < 15w r = 1 x 1 thru hole omit this digit for no enable option a = sip 1 = negative logic t = 1.6 x 2 4 = positive logic c = construction trim for 1w to 15w e = enhanced thermals (baseplate or adapter plate) 9 = trim added i = integrated (full featured) hong kong models l = low profile (open frame, no case - isolated) p = open frame (sip or smt) non-isolated p = pin length omit this digit for standard 5mm 6 = 3.8mm 8 = 2.8mm 7 = 5.8 mm mx - factory options customer specific note: for some products, they may not conform with the new part number description above absolutely. revision q attachment i page 2 of 2

▲Up To Search▲

Price & Availability of AET02AA24

	To Download AET02AA24 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .