isolated dc/dc converter VLA106-24154 powerex, inc., 173 pavilion lane, youngwood, pennsylvania 15697 (724) 925-7272 1 rev. 01/10 description: VLA106-24154 is a dc-dc converter. its output power is 4.5w and the input is isolated from the output. the over-load pro - tection circuit is built-in. this device is used for on-board power sup - plies and industrial control equipment. features: input voltage range: 21.6 to 26.4v dc output: +15v, 300ma (output power: 4.5w) 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 1.87 47.5 b 0.945 24.0 c 0.71 18.0 d 1.60 40.64 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. test circuit diagram +v in ?v in 8 9 10 v o nc -v o 16 1 a d b g g xxxx 24154 filter filter drive circuit constant voltage circuit over-load protection optocoupler 11 3 1 2 h j k l f c e 9 10 100f 50v 220f 50v v in + 2 + VLA106-24154 load 3 8 11 1
VLA106-24154 isolated dc/dc converter powerex, inc., 173 pavilion lane, youngwood, pennsylvania 15697 (724) 925-7272 rev. 01/10 2 output current, i o , (ma) efficiency, h, (%) efficiency vs. output current characteristics 100 0 100 200 500 300 400 80 60 40 20 0 output current, i o , (ma) output voltage, v o , (volts) output voltage vs. output current characteristics 18 0 200 100 500 300 400 14 12 10 16 8 6 4 2 0 input voltage, v in , (volts) efficiency, h, (%) efficiency vs. input voltage characteristics 20 21 22 23 26 24 25 27 100 80 60 40 20 0 v in = 24v t a = 25c v in = 24v t a = 25c i o = 300ma t a = 25c 05 10 15 20 25 30 05 10 15 20 25 30 20 16 12 8 4 0 i o = 300ma 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 800 640 480 320 160 0 i o = 300ma t a = 25c ambient temperature, (c) output current, i o , (ma) derating characteristics 400 350 -10 30 10 110 50 70 90 300 250 200 150 100 50 0 absolute maximum ratings, t a = 25c unless otherwise specifed characteristics symbol VLA106-24154 units input voltage (between pins 8, 9, and 10, 11) v in 27 volts output current (between pins 3 and 1) i o 300 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 maximum operating range 18.0 26.4 volts output voltage v o i o = 0 ~ 300ma 14.25 15.0 15.75 volts input regulation r eg-i i o = 0 ~ 300ma, v in = 21.6 ~ 26.4v 75 mv load regulation r eg-l i o = 0 ~ 300ma 120 mv ripple voltage v p-p i o = 300ma 120 mv efficiency h i o = 300ma 75 %
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