isolated dc/dc converter VLA106-24242 powerex, inc., 173 pavilion lane, youngwood, pennsylvania 15697 (724) 925-7272 www.pwrx.com 1 7/12 rev. 1 description: VLA106-24242 is a dc-dc converter. its output power is 2.4w and the input is isolated from the output. the over-current protection circuit is built-in. this device is used for on-board power supplies in industrial control equipment. features: input voltage range: 21.6 to 26.4v dc output: +24v, 100ma (output power: 2.4w) thin profile, lightweight design electrical isolation voltage between input and output: 2500 v rms for 1 minute built in over-current protection circuit application: on-board power supplies such as industrial equipment and control equipment. outline drawing and circuit diagram dimensions inches millimeters a 1.3 33.0 b 0.945 24.0 c 0.71 18.0 d 1.0 25.4 e 0.22 5.5 f 0.53 13.5 g 0.18 4.5 h 0.10 2.54 j 0.180.06 4.51.5 k 0.02+0.004/-0.002 0.5+0.1/-0.05 l 0.01+0.01/-0.002 0.25+0.2/-0.05 note: all dimensions listed are maximums except d. a b +v in ?v in 8 9 10 +v o1 +v o2 3.3k v z = 8.2v -v o xxxx 24242 filter filter drive circuit constant voltage circuit over-current protection optocoupler 11 3 1 2 11 1 d j g h k l g f c e 9 10 i o v in c1 c1 : 100f 50v (low impedance) c2 : 47f 50v (low impedance) c2 + 2 + VLA106-24242 load 3 a v v 8 11 1 test circuit diagram
VLA106-24242 isolated dc/dc converter powerex, inc., 173 pavilion lane, youngwood, pennsylvania 15697 (724) 925-7272 www.pwrx.com 7/12 rev. 1 2 absolute maximum ratings, t a = 25c unless otherwise specifed characteristics symbol VLA106-24242 units input voltage (between pins 8, 9, and 10, 11) v in 27 volts output current (between pins 3 and 1) i o 100 ma operating temperature (no condensation)* t opr -20 ~ 70 c storage temperature (no condensation) t stg -20 to 85 c input-output isolation voltage (ac, 1 minute) v iso 2500 v rms *please refer to derating characteristics. electrical and mechanical characteristics, t a = 25c, v in = 24v unless otherwise specifed characteristics symbol test conditions min. typ. max. units input voltage v in recommended range 21.6 24.0 26.4 volts output voltage 1 v o1 between pins 3 and 1, i o = 0 ~ 100ma 22.8 24.0 25.2 volts output voltage 2 v o2 between pins 2 and 1, 7.79 8.2 8.61 volts between pins 3 and 2 : no load input regulation r eg-i between pins 3 and 1, 50 mv i o = 100ma, v in = 21.6 ~ 26.4v load regulation r eg-l between pins 3 and 1, i o = 0 ~ 100ma 50 mv ripple voltage v p-p between pins 3 and 1, i o = 100ma 150 mv efficiency h between pins 3 and 1, i o = 100ma 72 % output current, i o , (ma) efficiency, h, (%) efficiency vs. output current characteristics 100 03 06 09 0 180 150 120 80 60 40 20 0 output current, i o , (ma) output voltage, v o , (volts) output voltage vs. output current characteristics 32 08 0 40 60 20 180 1201 60 140 100 12 16 20 24 28 8 4 0 input voltage, v in , (volts) efficiency, h, (%) efficiency vs. input voltage characteristics 20 21 22 24 23 25 26 27 100 80 60 40 20 0 v in = 24v t a = 25c v in = 24v t a = 25c i o = 100ma t a = 25c 05 10 15 20 25 30 05 10 15 25 20 30 32 16 20 24 28 12 8 4 0 i o = 100ma t a = 25c input voltage, v in , (volts) output voltage, v o , (volts) output voltage vs. input voltage characteristics input voltage, v in , (volts) input current, i in , (ma) input current vs. input voltage characteristics 500 400 300 200 100 0 i o = 100ma t a = 25c ambient temperature, (c) output current, i o , (ma) derating characteristics 140 -10 30 10 110 50 709 0 120 100 80 60 40 20 0
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