www.power-systems.de page: 1 / 4 version: 4-oct-02 1w series ( 1w wide input range dc-dc converter ) dc-dc converter unit z output specifications z input specifications voltage setpoint accuracy +/-2% max input voltage range 2:1 input range temperature coefficient +/-0.03%/ o c input filter pi network ripple & noise (20mhz bw) 100mvp-p max line regulation 1 +/-0.2% max load regulation 2 +/-0.2% max z general specifications short circuit protection continuous efficiency 70% min isolation voltage 3 1000 vdc min z environmental specifications isolation resistance 10 9 ohms min operating temperature -25 o c to +71 o c switching frequency 75 khz min storage temperature -55 o c to +125 o c isolation capacitance 80pf max cooling free-air convection mtbf 1,000,000 hours weight 6.6g typ case material non-conductive plastic case size 31.8mm*8.6mm*14.5mm all specifications t ypical at nominal line, full load , and 25 o c unless otherwise noted. 1 high line to low line. 2 load regulation is for output load current change from 10% to 100%. 3 for 60 seconds features z 1000vdc isolation z high efficiency z internal filtering z low cost z no external components required z up to 2w regulated output power z single in line package z 100% burned in z low noise z mtbf > 1,000,000 hours
www.power-systems.de page: 2 / 4 version: 4-oct-02 1w series ( 1w wide input range dc-dc converter ) dc-dc converter unit z selection guide 2w output input current(ma) model number input voltage (vdc) output voltage (vdc) output current (ma) full load no load eff (%) isolation (vdc) 1ws-1205 9-18 5 400 231 20 72 1000 1ws-1209 9-18 9 222 225 20 74 1000 1WS-1212 9-18 12 168 213 20 78 1000 1ws-1215 9-18 15 133 213 20 78 1000 1ws-2405 18-36 5 400 112 12 74 1000 1ws-2409 18-36 9 222 111 13 75 1000 1ws-2412 18-36 12 168 107 11 78 1000 1ws-2415 18-36 15 133 107 11 78 1000 note: other input to output voltages may be available. please contact factory. z mechanical dimensions pin single 1 +vin 3 -vin 6 nc 8 nc 10 +vout 12 -vout
www.power-systems.de page: 3 / 4 version: 4-oct-02 1w series ( 1w wide input range dc-dc converter ) dc-dc converter unit z recommended footprint details z simplified schematic z typical applications -vin +vin +vout -vout reference & error amp is ol a tion pfm controller load input +vin output -vout +vout -vin dc-dc converter z temperature derating 0.0 0.5 1.0 1.5 2.0 2.5 -25 0 25 50 70 100 ta(degree c) output power(w) safe operating a rea
www.power-systems.de page: 4 / 4 version: 4-oct-02 1w series ( 1w wide input range dc-dc converter ) dc-dc converter unit 1w series application notes: external capacitance requirements: no external capacitance is requir ed for operation of the 1w series. to meet the reflected ripple requirements of t he converter, an input impedance of less than 0.5 ohm from dc to 100khz is required. external output capacitance is not required for operation, however it is recommended that 10uf tantalum and 0.1uf ceramic capacitanc e be selected for reduced system noise. additional output capacitance may be added for incr eased filtering, but should not exceed 220uf. negative outputs: a negative output voltage may be obtained by connecting the +out to circuit ground and connecting ?out as the negative output. for more information call: power systems ? the power solution 74360 ilsfeld-auenstein ( germany ) d?rnet 8 tel: + 49 / 70 62 / 67 59 ? 6 fax: + 49 / 70 62 / 67 59 -80 e-mail: info@power-systems.de home page: www.power-systems.de
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