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URA4812LD-20WR3 Datasheet(PDF) 2 Page - MORNSUN Science& Technology Ltd. |
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URA4812LD-20WR3 Datasheet(HTML) 2 Page - MORNSUN Science& Technology Ltd. |
2 / 8 page DC/DC Converter URA_LD-20WR3 & URB_LD-20WR3 Series 2014.07.17-A/0 Page 2 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation Input Specifications Item Operating Conditions Min. Typ. Max. Unit Input Current (full load / no-load) 24VDC input 3.3V, 5V output -- 926/40 -- mA Others -- 926/5 -- 48VDC input 3.3V, 5V output -- 463/20 -- Others -- 463/4 -- Reflected Ripple Current 24VDC input -- 30 -- 48VDC input -- 30 -- Input impulse Voltage(1sec.max.) 24VDC input -0.7 -- 50 VDC 48VDC input -0.7 -- 100 Starting Voltage 24VDC input -- -- 9 48VDC input -- -- 18 Under VoltageShutdown 24VDC input 5.5 6.5 -- 48VDC input 14.0 15.5 -- Starting Time Nominal input& constant resistance load -- 10 -- ms Input Filter Pi filter Ctrl* Module switch on Ctrl suspended or connected toTTL high level (3.5-12VDC) Module switch off Ctrl pin connected to GND or low level (0-1.2VDC) Input current when switched off -- 47 Ma Note: *The voltage of Ctrl pin is relative toinput pinGND. Output Specifications Item Operating Conditions Min. Typ. Max. Unit Positive Output Voltage Accuracy -- ±1 ±3 % Negative Output Voltage Accuracy Balance of Output Voltage Dual output, balanced load -- ±0.5 ±1.5 Line Regulation Full load, the input voltage is from low voltage to high voltage -- ±0.2 ±0.5 Load Regulation 10%-100% load -- ±0.5 ±1 Cross Regulation Dual output, main output 50% load, Supplement output from 10% to 100% load -- -- ±5 Transient Recovery Time 25% load step change -- 300 500 μs Transient Response Deviation 3.3V, 5V, ±5V output -- ±5 ±8 % Others -- ±3 ±5 Temperature Drift Coefficient Full load -- ±0.02 -- %/℃ Ripple & Noise 20MHz bandwidth -- 50 100 Mv p-p Trim Input voltage range -- ±10 -- %Vo Output Over-voltage Protection 110 -- 160 Output Over-current Protection 110 -- 190 %Io Output Short circuit Protection Hiccup, Continuous, self-recovery Note: * Ripple and noise tested with “parallel cable” method, please see DC-DC Converter Application Notes for specific operation methods. General Specifications Item Operating Conditions Min. Typ. Max. Unit Insulation Voltage Input-output, with the test time of 1 minute and the leak current lower than 1mA 1500 -- -- VDC Insulation Resistance Input-output, insulation voltage 500VDC 1000 -- -- MΩ Isolation Capacitance Input-output, 100KHz/0.1V -- 1050 -- pF Operating Temperature see Fig. 1 -40 -- 85 ℃ Storage Temperature -55 -- 125 Storage Humidity Non-condensing 5 -- 95 %RH Max. Operating Temperature for casing Within the operating temperature curve -- -- 105 ℃ |
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