VRA_D-20W & VRB_D-20W Series 20W, WIDE INPUT, ISOLATED & REGULATED SINGLE&DUAL OUTPUT DC-DC CONVERTER multi-country patent protection RoHS FEATURES PRODUCT PROGRAM ● Efficiency up to 87% ● Wide (2:1) Input Range ● 1.5KVDC Input/Output Isolation ● Over Voltage protection ● Output Short Circuit Protection ● Operating Temperature: -40°C to +71°C ● Internal SMD construction ● Metal Shielding Package ● Industry Standard Pin out ● MTBF>1,000,000 hours ● RoHS Compliance Application The VRA_D-20W & VRB_D-20W series offer Input Part Number Current (mA) VRA1205D-20W ±5 ±2000 80 ±3400 VRA1212D-20W ±12 ±833 82 ±680 VRA1215D-20W ±15 ±666 82 ±450 ±24 ±416 83 ±220 3.3 5400 86 13000 5 4000 79 6800 Nominal VRB1212D-20W 12 1666 81 2200 VRB1215D-20W 15 1333 82 755 VRB1224D-20W 24 833 83 500 VRA2405D-20W ±5 ±2000 81 ±3400 VRA2412D-20W ±12 ±833 86 ±680 VRA2415D-20W ±15 86 ±450 ±416 86 ±220 3.3 5400 86 13000 VRB2405D-20W 5 4000 81 6800 VRB2412D-20W 12 1666 83 2200 VRB2415D-20W 15 1333 85 755 VRB2424D-20W 24 833 85 500 Rated Power Package Style Output Voltage Input Voltage Product Series 24 18-36 VRA4805D-20W ±5 ±2000 81 ±3400 VRA4812D-20W ±12 ±833 86 ±680 VRA4815D-20W ±15 ±666 86 ±450 VRA4824D-20W * ±24 ±416 86 ±220 3.3 5400 87 13000 VRB4805D-20W 5 4000 83 6800 VRB4812D-20W 12 1666 84 2200 VRB4815D-20W 15 1333 84 755 VRB4824D-20W 24 833 86 500 Test conditions Min Typ Max Units 12Vinput models 8.6 8.8 9 24Vinput models 17.5 17.8 18 48Vinput models 34 35 36 VRB4803D-20W MODEL SELECTION VRB1203D-20W ±666 ±24 and 36-75VDC and features 1500VDC isolation, equipments power. 9-18 VRB1205D-20W VRB2403D-20W suited to tele-communications, industrial, test 12 VRB1203D-20W VRA2424D-20W * sided shielding. All models are particularly Range VRA1224D-20W * series with 2:1 wide input voltage of 9-18,18-36 six Efficiency capacitance (%, Typ) (max,UF） Voltage (VDC) 20W of output, the VRA_D-20W & VRB_D-20W short-circuit and over current protection, as well as Output Voltage (VDC) 48 36-75 *Designing. INPUT SPECIFICATIONS Item MORNSUN Science& Technology co.,Ltd. Address: 2th floor 6th building, Huangzhou Industrial District, Guangzhou, China Tel: 86-20-38601850 Fax:86-20-38601272 Http://www.mornsun-power.com Start voltage Input filter L-C Start up time 20 Method of Remote (Reference point: GND) MORNSUN reserves the copyright Specifications subject to change without notice MS on 3.5-40VDC or open circuit off GND or Low Voltage(<1.2V) VRB_D-20W＆VRA_D-20W VDC A/3-2008 Page 1 of 2 OUTPUT SPECIFICATIONS OUTPUT VOLTAGE TRIM Item Test conditions Min Typ Max ±1 ±3 Units Output voltage accuracy Load regulation Refer to recommended circuit From 10% to 100% load +V0 ±0.5 ±1 Line regulation Input voltage from low to high ±0.2 ±0.5 % Trim Trim +Vo 75 150 mV 0V 0V Trim 200 300 us % ±5 Cross regulation Ripple and noise Tested under 20MHz brand Transient recovery time Transient peak deviation 50 25%load change ±2 Input voltage range Over load protection* 120 Output Short Circuit 130 ±5 % 150 3.63 5V 13.2 15.6 15V 16.5 19.5 24 26.4 31.2 Min Vout Cout Cin VDC Typ Max 105 5 95 Units For dual output Fig.1 In order to abtain better performance for the DC/DC models. it’s recommended that use input and output filters as Fig.1 shown.. 1500 VDC 500 MΩ pF 100KHz / 1V 1000 Switching frequency Nominal, full load 300 KHz 100 K hours MTBF Case Material Temperature derating curve ℃ Isolation Capacitance Aluminous alloy Weight 39 Operating Temp( o C) G Note: 1. All specifications are measured at TA=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. The CTRL control pin voltage is referenced to GND. 3. Typical Eff value at nominal input voltage and full load. 4. Capacitor MAX load tested at nominal input voltage and constant resistive load. 5. Refer to the diagram of Output Voltage trim up/down for trim applications. 6. The products cannot be used in parallel and in plug and play. OUTLINE DIMENSIONS & FOOTPRINT DETAILS F irst Angle Proj ectio n 6 5 5 2 1 6 7 ( 4.10 0.161) 5.08 (0.200) 4 10.50 ( 0.410) 10.00 (0.390) VRA2412D-20W EFF % 35.00 (1.380) N o te: U n it :m m (i n ch ) P in se ct io n : 1 .0 0 m m( 0. 0 39 in ch ) P in se ct io n t o l er a nce s :+0 .05 m m( +0 . 0 02 in c h) G e ne r al to le ra n c es: + 0 . 2 5mm (+ 0.0 1 0 in ch ) F OO T PRIN T D ETAIL S S ing l e P in D ua l 1 Vin V in 2 GN D G ND 3 C t rl C tr l 4 Trim Tr im - Vo 0V 5 Com 6 + Vo 7 EfficiencyVS Output load 100 90 80 70 60 50 40 30 20 10 0 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% Out put %Io 4 3 40.60 (1.600) 7 10.16 10.16 10.16 ( 0.400) (0.400) (0.400) 45.72 ( 1.800) MORNSUN reserves the copyright Curve of Efficiency VS output load RE CO MM E N DE D FO OT PR I N T To p v iew ,g r id :2 . 5 4m m (0 .1 in ch ) , d ia me te r :1 . 50 m m(0 .0 5 9in ch ) 50.80 (2.000) 2.00 (0.080) Cout DC -Vo ±10%Vo -55 Test for 1 minute and 1 mA max 3 -0V DC GN D %/℃ 71 Isolation resistance 10.1 6 (0.400) For single output Vin 0.02 -40 Storage Humidity 1 (B ottom View ) 2 Cout DC DERATING & EFFICIENCY CURVE Test conditions Storage Temperature 2.54 (0.100) DC 0V VDC COMMON SPECIFICATIONS 7.80 (0.300) Vout Cin L 6.5 5.5 Trim 15.24 ( 0.600) L Vi n GND 4.29 12V Temperature drift (Vout) Isolation voltage RECOMMENDED CIRCUIT Output Power(%) Over voltage protection Trim down Trim up Hiccup, automatics recovery 3.3V Item Operating Temperature Trim up/d own No pin Curve of Efficiency VS input Voltage VRA2412D-20W EFF % Efficiency VS Input voltage 94 92 91 89 87 85 84 82 80 18 20 22 24 26 28 30 32 34 36 I npu t vol ta ge（V） + Vo Specifications subject to change without notice VRB_D-20W＆VRA_D-20W A/3-2008 Page 1 of 2