bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com non-isolated dc/dc converters 4.5 vdc - 14 vdc input 0.75 vdc - 3.63 vdc/16 a output ? non-isolated ? under-voltage lockout (uvlo) ? high efficiency ? over temperature shutdown ? fixed frequency ? ocp/scp ? low cost ? remote sense ? wide trim ? flexible output voltage sequencing (option) ? remote on/off ? industrial temperature range (option) ? wide input ? active low/high (option) description the bel vrbc-16e2ax is part of the non-isolated dc/dc converter series. the modules use a sip package. these converters are available in a range of output voltages from 0.75 vdc to 3.63 vdc over a wide range of input voltage (vin = 4.5 vdc -14 vdc). the bel vrbc-16e2ax has a sequencing feature that enables designers to implement various types of output voltage sequencing when powering. the efficiency is typically 93.5% at 3.3 vdc output and 5 vdc input at full load. part selection output voltage input voltage max. output current max. output power typical efficiency model number active low model number active high 0.75 v - 3.63 v 4.5 v - 14 v 16 a 58 w 93.5% vrbc-16e2al vrbc-16e2a0 notes : 1. all part numbers above indicate rohs 6. change the second letter "r" to "7" for rohs 5 part numbers. 2. add ?g? suffix at the end of the model number to indicate tray packaging. absolute maximum ratings parameter min typ max notes input voltage (continuous) -0.3 v - 15 v output enable terminal voltage -0.3 v - 15 v sequencing voltage 1 -0.3 v - vin ambient temperature -40 c - 85 c storage temperature -55 c - 125 c notes : all specifications are typical at 25 c unless otherwise stated. 1. vrbc-16e2ax series of modules include a sequencing feature that enables users to implement various types of output voltage sequencing in their applications. this is accomplished via an additional sequencing pin. when not using the sequencing feature, either, tie the seq pin to vin or leave it unconnected. v rbc-16e2ax rohs com p liant rev.a
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com non-isolated dc/dc converters 4.5 vdc - 14 vdc input 0.75 vdc - 3.63 vdc/16 a output input specifications parameter min typ max notes input voltage vo,set < 3.0 vo,set 3.0 4.5 v vo,set+1.5 v - - 14 v 14 v input current (full load) - - 15 a input current (no load) - 100 ma - remote off input current - 2 ma - input reflected ripple current (pk-pk) - - 400 ma input reflected ripple current (rms) - - 150 ma tested with one 1000 uf/25 v al input capacitor with esr=0.03 ohm max and 6 47uf/16 v tan capacitors with esr=0.013 ohm max at 100 khz, & simulated source impedance of 1000 nh, 5 hz to 20 mhz. i 2 t inrush current transient - 0.2 a 2 s 0.4 a 2 s turn-on voltage threshold - 4.3 v - turn-off voltage threshold 3.7 v - 4.2 v note : all specifications are typical at nominal input, full load at 25 c unless otherwise stated. output specifications parameter min typ max notes output voltage set point -2% vo,set - 2% vo,set vin=12 v, full load load regulation - 0.2% vo,set - io=iomin to iomax line regulation - 0.3% vo,s et - vin=vinmin to vinmax regulation over temperature (-40 c to +85 c) - 0.3% vo,set - tref=tamin to tamax output current 0 a - 16 a current limit threshold - 180% io,out - short circuit surge transient - 1 a 2 s 3 a 2 s ripple and noise (pk-pk) - 30 mv 80 mv ripple and noise (rms) - 12 mv 35 mv tested with 0-20 mhz, 10 uf tantalum capacitor &1 uf tdk ceramic capacitor at the output turn on time - 8 ms 20 ms overshoot at turn on - - 1% vo,set output capacitance 0 uf - 5600 uf transient response 50% ~ 100% max load - 100 mv - settling time - 80 us - 100% ~ 50% max load - 100 mv - settling time all - 80 us - di/dt=2.5 a/us; vin=12 v; and cext=0 uf. note : all specifications are typical at nominal input, full load at 25 c unless otherwise stated.
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com non-isolated dc/dc converters 4.5 vdc - 14 vdc input 0.75 vdc - 3.63 vdc/16 a output general specifications parameter min typ max notes efficiency vo=3.3 v vo=2.5 v vo=1.8 v vo=1.5 v vo=1.2 v vo=0.75 v - - - - - - 91.7% 90.4% 87.5% 86% 85% 79% - - - - - - measured at vin=12 v, full load efficiency vo=3.3 v vo=2.5 v vo=1.8 v vo=1.5 v vo=1.2 v vo=0.75 v - - - - - - 93.5% 91.5% 88.4% 87% 86% 80% - - - - - - measured at vin=5 v, full load switching frequency 250 khz 280 khz 310 khz over temperature shutdown 1 - 130 c - output trim range (wide trim) 0.7525 v - 3.63 v remote sense compensation - - 0.5 v mtbf 4,619,490 hours calculated per bell core sr-332 (i o = 80% io,max; vin=12 v; vo=3.3 v; t a = 25 c) dimensions inches (l w h) millimeters ( l w h ) 2.0x 0.5 x 0.32 50.8 x 12.7 x 8.13 weight - 7.1 g - notes : all specifications are typical at 25 c unless otherwise stated. 1. the tref temperature measurement location: control specifications parameter min typ max notes remote on/off signal low (unit off) -0.2 v - 0.3 v signal high (unit on) - - vin, max vrbc-16e2a0; remote on/off pin open, unit on. signal low (unit on) -0.2 v - 0.3 v signal high (unit off) 2.5 v - vin, max vrbc-16e2al; remote on/off pin open, unit on. voltage sequencing sequencing delay time 25 ms - - delay from vinmin to application of voltage on seq pin sequencing slew rate capability - - 2 v/ms tracking accuracy power-up power-down - - 100 mv 200 mv 200 mv 400 mv vinmin to vinmax; iomin to iomax; vseq bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com non-isolated dc/dc converters 4.5 vdc - 14 vdc input 0.75 vdc - 3.63 vdc/16 a output output trim equations equation for calculating the trim resistor (in ? ) given the desired output voltage (vo) is shown below. the trim up resistor should be connected between the trim pin and ground. 1000 7525 . 0 10500 ? ? = vo r trim equation for calculating the trim voltage (in v) given the desired output voltage (vo) is shown below. the trim up voltage should be connected between the trim pin and ground. ) 7525 . 0 ( 0667 . 0 7 . 0 ? ? = vo v trim rtrim module vout gnd sense trim vtrim module vout gnd sense trim
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com non-isolated dc/dc converters 4.5 vdc - 14 vdc input 0.75 vdc - 3.63 vdc/16 a output efficiency data module 3.3 v 70% 75% 80% 85% 90% 95% 100% 1.6 4.0 8.0 12.0 16.0 output current efficiency 5.0 v 12.0 v module 2.5 v 70% 80% 90% 100% 1.6 4.0 8.0 12.0 16.0 output current efficiency 5.0 v 12.0 v module 1.8 v 70% 75% 80% 85% 90% 95% 100% 1.6 4.0 8.0 12.0 16.0 output current efficiency 5.0 v 12.0 v module 1.5 v 65% 75% 85% 95% 105% 1.6 4.0 8.0 12.0 16.0 output current efficiency 5.0 v 12.0 v module 1.2 v 50% 60% 70% 80% 90% 100% 1.6 4.0 8.0 12.0 16.0 output current efficiency 5.0 v 12.0 v module 0.75 v 50% 60% 70% 80% 90% 100% 1.6 4.0 8.0 12.0 16.0 output current efficiency 5.0 v 12.0 v
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com non-isolated dc/dc converters 4.5 vdc - 14 vdc input 0.75 vdc - 3.63 vdc/16 a output thermal derating curves vo=0.75 v; vin=12.0 v vo=1.8 v; vin=12.0 v vo=3.3 v; vin=12.0 v ripple and noise waveforms vin=5.0 v, vo=3.3 v vin=12 v, vo=3.3 v note: external load with 10 uf tantalum capacitor and 1 uf ceramic at the output, full load, ta=25 deg c.
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com non-isolated dc/dc converters 4.5 vdc - 14 vdc input 0.75 vdc - 3.63 vdc/16 a output transient response waveforms 50% to 100% load transient at vin=5 v, vo=3.3 v 100% to 50% load transient at vin=5 v, vo=3.3 v 50% to 100% load transient at vin=12 v, vo=3.3 v 100% to 50% load transient at vin=12 v, vo=3.3 v note: external load capacitor cext=0 uf, and ta=25 deg c.
? 2007 bel fuse inc. specifications subject to change without notice. 011607 corporate far east europe bel fuse inc. bel fuse ltd. bel fuse europe ltd. 206 van vorst street 8f/ 8 luk hop street preston technology management centre jersey city, nj 07302 san po kong marsh lane, suite g7, preston tel 201-432-0463 kowloon, hong kong lancashire, pr1 8ud, u.k. fax 201-432-9542 tel 852-2328-5515 tel 44-1772-556601 www.belfuse.com fax 852-2352-3706 fax 44-1772-888366 www.belfuse.com www.belfuse.com non-isolated dc/dc converters 4.5 vdc - 14 vdc input 0.75 vdc - 3.63 vdc/16 a output mechanical outline rohs compliance complies with the european directive 2002/95/ ec, calling for the elimination of lead and other hazardous substances from electronic products. pin connections pin function 1 vo 2 vo 3 remote sense 4 vo 5 ground 6 ground 7 vin 8 vin 9 seq 10 trim 11 remote on/off
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