WPN20R12S05C MURATA | Alldatasheet
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KDC_WPN20RC.C01 Page 1 of 4 Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232www.murata-ps.com WPN20 20W Regulated DC/DC Converter For full details go to www.murata-ps.com/rohs Ḥ SELECTION GUIDE Order Code Input Voltage Output Voltage Output Current Input Current EfficiencyNom. Min. Nom. Nom. Load VV A AA % WPN20R12S05C 12 5.0 0.0 4.00 2.00 84 WPN20R12S12C 12 12.0 0.0 1.66 2.00 86 WPN20R12D12C 12 ±12.0 0.0 ±0.83 2.00 86 WPN20R24S03C 24 3.3 0.0 6.00 1.00 83 WPN20R24S05C 24 5.0 0.0 4.00 1.00 84 WPN20R24S12C 24 12.0 0.0 1.66 1.00 87 WPN20R24D12C 24 ±12.0 0.0 ±0.83 1.00 87 WPN20R24D15C 24 ±15.0 0.0 ±0.67 1.00 87 WPN20R48S05C 48 5.0 0.0 4.00 0.50 85 WPN20R48S12C 48 12.0 0.0 1.66 0.50 88 WPN20R48D12C 48 ±12.0 0.0 ±0.83 0.50 87 WPN20R48D15C 48 ±15.0 0.0 ±0.67 0.50 87 INPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Voltage range All WPN20R12 types 9 12 18 VAll WPN20R24 types 18 24 36 All WPN20R48 types 33 48 75 Reflected ripple current 50 mA p-p Undervoltage lockout threshold All WPN20R12 types 7 8.8 VAll WPN20R24 types 15.5 17 All WPN20R48 types 30 33 OUTPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Rated power 20 W Voltage setpoint accuracy ±1.5 % Temperature coefficient ±0.005 %/ºC Line regulation High line to low line Singles ±0.1 % Duals ±0.5 % Load regulation Min load to Nom. load Singles ±0.5 % Duals ±2.0 % Ripple & Noise Single outputs, BW = 5Hz to 20MHz 60 100 mVp-p Dual outputs, BW = 5Hz to 20MHz 50 100 mVp-p Output voltage adjust range See attached plots Short circuit & overcurrent protection Continuous GENERAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Switching frequency 300 kHz Max capacitive load 550 mF/A MTTF per ML-HDBK-217 Ground benign Circuit stress method TA = +25º unmodified database 1.4 MHr
FEATURES
/square6 RoHS compliant /square6 Operating temperature range: -40ºC to +100ºC /square6 Industry standard pinout /square6 Input and output filtering /square6 Low profile shell /square6 Single and dual outputs /square6 Output trim function
DESCRIPTION
The WPN20RC series is available in three input voltage ranges of 9-18V, 18-36V and 33-75V. The unit is housed in a space saving aluminum shell. The 300KHz switching frequency and forward converter topology provide excellent performance across all line and load conditions. Other features include: under voltage lock-out, internal tem- perature shutdown, soft start and over current protection. An output trim feature is provided, allowing the user to compensate for long line lengths. Applications include: Telecommunications, Battery Powered Sytems, Process Control Equipment, Transportation Equipment and Distributed Power Systems. The product range has been recognised by Under- writers Laboratory (UL) to UL 1950 for operational insulation, file number E179522 applies. All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
KDC_WPN20RC.C01 Page 2 of 4 Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232www.murata-ps.com WPN20 20W Regulated DC/DC Converter THERMAL DERATING CURVE ISOLATION CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Rated voltage 1500 Vpk Test voltage 60Hz, 10 seconds 1500 Vpk Resistance 10 GΩ Capacitance 2400 pF TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Specification Case -40 +85 °C Operation Case -40 +85 °C Storage -55 +125 °C Thermal shutdown Case 105 115 °C 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 min.). 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 WPN20 series of dc/dc converters are all 100% production tested at their stated isolation voltage. This is 1500 Vpk for 10 seconds. A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” The WPN20 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 materi- als, 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.
KDC_WPN20RC.C01 Page 3 of 4 Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232www.murata-ps.com WPN20 20W Regulated DC/DC Converter PERFORMANCE GRAPHS Efficiency (%) 15V 12V OUTPUT RIPPLE VS. TEMPERATURE Normalized Output Ripple -40 -15 25 65 110 Tcase (C) TRIM RESISTOR VS. OUTPUT VOLTAGE CHANGE50 10 9 8 7 6 5 4 3 2 1 Percentage Change In Output Voltage Trim Resistor (K Ohms) 5 5 3 -trim +trim -40 -15 25 65 110 100% Load 20% Load Tcase (C) Change in Efficiency (%) -10 Change in Efficiency (%) 0.6 0.4 0.2 -0.2 -0.4 -0.6 -0.8 Vin EFFICIENCY VS. INPUT VOLTAGE LL Nom HL 50%Load 10%Load 100%Load Percentage Change In Output Voltage 100 10 9 8 7 6 5 4 3 2 1 TRIM RESISTOR VS. OUTPUT VOLTAGE CHANGE Trim Resistor (K Ohms) EFFICIENCY VS. OUTPUT LOAD90 10 20 40 50 60 80 100 Output Load (% or Rated) 1.4 1.2 0.8 0.6 0.4 OUTPUT RIPPLE VS. INPUT VOLTAGE Normalized Output Ripple Vin LL Nom HL 12 15 15 +trim -trim trim 1.2 0.8 0.6 EFFICIENCY VS. TEMPERATURE
KDC_WPN20RC.C01 Page 4 of 4 Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232www.murata-ps.com WPN20 20W Regulated DC/DC Converter 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. © 2009 Murata Power Solutions, Inc. USA: Mansfield (MA), Tel: (508) 339 3000, email: sales@murata-ps.com Canada: Toronto, Tel: (866) 740 1232, email: toronto@murata-ps.com UK: Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Germany: München, Tel: +49 (0)89-544334-0, email: ped.munich@murata-ps.com Japan: Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com China: Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com email: sales@murata-ps.com ISO 9001 & ISO 14001 REGISTERED MECHANICAL DIMENSTIONS Weight: 32g Unless otherwise stated all dimensions are in inches (mm) ±0.01 (0.25). PIN SIDE DOWN PIN SIDE UP WPN20RxxyzzC 1.590 ± 0.005 (40.39 ± 0.13) 1.990 ± 0.005 (50.55 ± 0.13) 0.425 ± 0.00 (10.80 ± 0.08) 0.150 (1.02 ± 0.05) 0.015 ± 0.003 (0.38 ± 0.08) SIDE VIEW PIN CONNECTIONS Pin Function Singles Duals 1+ V IN +VIN 2- V IN -VIN