mdc_pwr70 series.b02 page 1 of 3 PWR70C series 3 watt, high isolation, unregulated dc/dc converters www.murata-ps.com www.murata-ps.com/support for full details go to www.murata-ps.com/rohs $ features ?? tested in compliance with ul544 ?? output power to 3w ?? high isolation voltage: 5000vpk tested ?? six-sided shielding ?? input and output ? ltering ?? low pro? le package: 0.4" high applications ?? power for data acquisition, op amps, etc. ?? process control ?? portable equipment ?? test equipment the PWR70C is a dual-output dc/dc converter designed for general purpose power conversion applications where high ef? ciency is more important than load regulation. the PWR70C provides a bipolar output voltage approximately equal to the input voltage magnitude. it operates over an input voltage range of 10vdc to 18vdc. isolation voltage is tested at 5000vpk. six-sided shielding suppresses electromagnetic radiation which could disturb sensitive analog measurements or interfere with system timing signals. input ? ltering minimizes re? ected ripple current. output ripple voltage and switching transients are reduced by ? ltering the PWR70C outputs. the PWR70C is tested in compliance with ul544, vde750, and csa c22.2 dielectric withstand voltage requirements. product overview absolute maximum ratings input voltage 18vdc output current 150ma output short-circuit duration continuous mechanical dimensions notes: all dimensions are in inches (millimeters). grid: 0.100 inches (2.54 millimeters) weight: 15gm (0.53oz) marked with: speci?c model ordered, date code, job code. material: units are encapsulated in a low thermal resistance molding compound which has excellent chemical resistance, wide operating temperature range, and good electrical properties under high humidity environments. lead material is brass with a matte tin ?nish of 100-300 micro-inches and a nickel barrier underplate of 5-40 micro-inches.
mdc_pwr70 series.b02 page 2 of 3 PWR70C series 3 watt, high isolation, unregulated dc/dc converters www.murata-ps.com/support part number structure electrical specifications at ta = +25c, +vin = 15vdc, and iout = 15ma unless otherwise noted. device family pwr indicates dc/dc converter pwr model number rohs-6 compliant 70 c parameter cond itions min typ max units input rated voltage 15 vdc voltage range 10 18 vdc input current i out = 3ma 25 ma i out = 33ma 150 ma ripple current i out = 33ma 10 map-p isolation test voltage 60s, 60hz 5000 vpk resistance 10 g capacitance 12 pf leakage current v iso = 240vac, 60hz 2 a output rated voltage 15 vdc voltage accuracy 5 % rated current 15 ma current range 0 100 ma line regulation 10vdc < vin < 18vdc 1.08 v/v load regulation 3ma < iout < 33ma 35 mv/ma ripple voltage iout = 3ma 10 mvp-p iout = 33ma 80 mvp-p temperature speci?cation C25 +85 c operating C55 +125 c storage C65 +150 c
mdc_pwr70 series.b02 page 3 of 3 PWR70C series 3 watt, high isolation, unregulated dc/dc converters www.murata-ps.com/support murata power solutions, inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. the descriptions contained her ein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. speci? cations are subject to cha nge without notice. ? 2012 murata power solutions, inc. murata power solutions, inc. 11 cabot boulevard, mans? eld, ma 02048-1151 u.s.a. iso 9001 and 14001 registered this product is subject to the following operating requirements and the life and safety critical application sales policy : refer to: http://www.murata-ps.com/requirements/ ambient temperature (c) v deviation from nominal (%) out 2 1 0 C1 C2 C65 C35C5255585115145 3ma load 30ma load output current (ma) v deviation from nominal (%) out 6 4 2 0 C2 C4 C6 0 1020304050 equal load varying load (one output constant 15ma load, other output vary current.) figure 2. temperature drift. figure 1. load regulation.
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