PWR70C Series www.murata-ps.com 3 Watt, High Isolation, Unregulated DC/DC Converters FEATURES PRODUCT OVERVIEW Tested in compliance with UL544 The PWR70C is a dual-output DC/DC converter designed for general purpose power conversion applications where high efficiency is more important than load regulation. Output power to 3W High isolation voltage: 5000Vpk tested Six-sided shielding Input and output filtering Low profile package: 0.4" High APPLICATIONS Power for data acquisition, op amps, etc. Process control Portable equipment Test equipment 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 filtering minimizes reflected ripple current. Output ripple voltage and switching transients are reduced by filtering the PWR70C outputs. The PWR70C is tested in compliance with UL544, VDE750, and CSA C22.2 dielectric withstand voltage requirements. ABSOLUTE MAXIMUM RATINGS Input Voltage Output Current Output Short-Circuit Duration 18VDC ±150mA Continuous MECHANICAL DIMENSIONS NOTES: All dimensions are in inches (millimeters). GRID: 0.100 inches (2.54 millimeters) WEIGHT: 15gm (0.53oz) Marked with: specific 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 finish of 100-300 micro-inches and a nickel barrier underplate of 5-40 micro-inches. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MDC_PWR70 Series.B02 Page 1 of 3 PWR70C Series 3 Watt, High Isolation, Unregulated DC/DC Converters PART NUMBER STRUCTURE PWR 70 C RoHS-6 compliant Device Family PWR indicates DC/DC converter Model Number ELECTRICAL SPECIFICATIONS At Ta = +25°C, +Vin = 15VDC, and Iout = ±15mA unless otherwise noted. PARAMETER INPUT Rated Voltage Voltage Range Input Current Ripple Current ISOLATION Test Voltage Resistance Capacitance Leakage Current OUTPUT Rated Voltage Voltage Accuracy Rated Current Current Range Line Regulation Load Regulation Ripple Voltage TEMPERATURE Specification Operating Storage CONDITIONS MIN TYP MAX UNITS 15 10 I OUT = ±3mA I OUT = ±33mA I OUT = ±33mA 60s, 60Hz 18 25 150 10 5000 10 12 V ISO = 240VAC, 60Hz 2 ±15 80 +85 +125 +150 °C °C °C ±15 10VDC < Vin < 18VDC ±3mA < Iout < ±33mA Iout = ±3mA Iout = ±33mA ±100 1.08 35 10 –25 –55 –65 Vpk GΩ pF μA VDC % mA mA V/V mV/mA mVp-p mVp-p ±5 0 VDC VDC mA mA mAp-p www.murata-ps.com/support MDC_PWR70 Series.B02 Page 2 of 3 PWR70C Series 3 Watt, High Isolation, Unregulated DC/DC Converters 2 6 V OUT Deviation From Nominal (%) V OUT Deviation From Nominal (%) 4 Equal Load 2 0 –2 Varying Load (One output constant 15mA load, other output vary current.) –4 1 ±3mA Load 0 ±30mA Load –1 –2 –6 0 10 20 30 40 50 –65 –35 FIGURE 1. Load Regulation. Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED –5 25 55 85 115 145 Ambient Temperature (°C) Output Current (mA) FIGURE 2. Temperature Drift. 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/ 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 herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2012 Murata Power Solutions, Inc. www.murata-ps.com/support MDC_PWR70 Series.B02 Page 3 of 3