www.murata-ps.com WPC03 OBSOLETE 3W Regulated ed Wide Input DC/DC Converter SELECTION GUIDE Order Code Input Voltage Nom. V Output Voltage V WPC03R24S05LC WPC03R24D15LC WPC03R48S05LC Max. Capacitive Efficiency Min. Load Rated Load Load mA mA μF % Output Current Recommended Alternative NDTS2405C NDTD2415C NDTS4805C Obsolete, recommended alternative: (click to view data sheets) INPUT CHARACTERISTICS Parameter Conditions Voltage range All WPC03R24 types All WPC03R48 types FEATURES Reflected ripple current RoHS compliant OUTPUT CHARACTERISTICS Small DIP package Parameter Full power to + 85ºC Rated power NPH10S2412IC Voltage setpoint accuracy Temperature coefficient Industry standard pinout High capacitive loading capability Line regulation DESCRIPTION Load regulation The WPC03RC is a family of DC/DC converters that offers regulated outputs over input voltage ranges of 18-36V and 34-72V while offering a wide operating temperature range of -40°C to +85°C without derating. Ripple & Noise Each WPC03RC contains input filtering to minimize conducted noise. Conditions Typ. Max. Units 18 34 24 48 50 36 72 V Typ. Max. Units 3 ±3.0 50 ±1.5 ±1.5 ±2.0 ±2.0 100 W % %/ºC % % % % mVp-p Typ. Max. Units 225 kHz Min. mA p-p ±0.02 High line to low line Min load to Nom. load BW = 5Hz to 20MHz Singles Duals Singles Duals GENERAL CHARACTERISTICS Parameter Conditions Switching frequency MTTF per ML-HDBK-217, Rev F Min. Min. Variable frequency min.-max. 70 TA = +25º 1.0 MHr ISOLATION CHARACTERISTICS Parameter Rated voltage Test voltage Resistance Capacitance Conditions Min. 60Hz, 10 seconds 1500 1500 Typ. Max. Units Vdc Vpk GΩ pF 10 220 TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Operation Storage -40 -55 Typ. Max. Units +85 +125 °C °C ABSOLUTE MAXIMUM RATINGS Output short circuit protection Internal power dissipation Max. case temperature Continuous 1.5W +100ºC 1. Although minimum load specifications are indicated, all models will operate under no-load conditions, but may not remain within data sheet specification. All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_WPC03.E01 Page 1 of 3 WPC03 3W Regulated Wide Input DC/DC Converter RoHS COMPLIANCE INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260ºC for 10 seconds. The pin termination finish on this product series is matte tin (100 microns min.) over nickel (40-80 microinches). The series is backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs TECHNICAL NOTES ISOLATION VOLTAGE ‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage, applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. Murata Power Solutions WPC03 series of dc/dc converters are all 100% production tested at their stated isolation voltage. This is 1500V pk for 10 seconds. A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” The WPC03 series has been recognized by Underwriters Laboratory, both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or 60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier must be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according to safety standard requirements. REPEATED HIGH-VOLTAGE ISOLATION TESTING It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials, construction and environment. While manufactured parts can withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from specified test voltage. www.murata-ps.com Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_WPC03.E01 Page 2 of 3 WPC03 3W Regulated Wide Input DC/DC Converter MECHANICAL DIMENSTIONS WPC03RxxyzzLC PIN CONNECTIONS Function Pin Singles Duals 2 -VIN -VIN 3 -VIN -VIN 9 No Connection OV 11 No Connection -VOUT 14 +VOUT +VOUT 16 -VOUT OV 22 +VIN +VIN 23 +VIN +VIN Weight: 12g All pins on a 0.1 (2.54) pitch and within ±0.01 (0.25) of true position. Unless otherwise stated all dimensions are in inches (mm) ±0.01 (0.25). Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, 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/ 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/locations KDC_WPC03.E01 Page 3 of 3