WRA_CS-3W & WRB_CS-3W Series 3W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER multi-country patent protection FEATURES RoHS PRODUCT PROGRAM Miniature SIP Package Wide (2:1) Input Range Regulated Outputs I/0 Isolation 1500VDC Short Circuit Protection(automatic recovery) Internal SMD construction Operating Temperature: -40°C to +85°C External On/Off control RoHS Compliance Input Part Number Output Voltage (VDC) Efficiency (%, Typ) Current (mA) Voltage (VDC) Max Min WRA1205CS-3W ±5 ±300 ±30 74 WRA1209CS-3W ±9 ±167 ±17 76 WRA1212CS-3W ±12 ±125 ±13 78 Nominal Range Max* ±15 ±100 ±10 80 WRB1205CS-3W 5 600 60 74 WRB1209CS-3W 9 333 33 76 WRB1212CS-3W 12 250 25 78 WRB1215CS-3W 15 200 20 80 WRA2405CS-3W ±5 ±300 ±30 76 WRA2409CS-3W ±9 ±167 ±17 78 a wide range input voltage power supplies are WRA2412CS-3W ±12 ±125 ±13 80 isolated from the input power supply in a WRA2415CS-3W ±15 ±100 ±10 81 distributed power supply system on a circuit WRB2405CS-3W 5 600 60 76 WRB2409CS-3W 9 333 33 78 WRB2412CS-3W 12 250 25 80 WRB2415CS-3W 15 200 20 81 APPLICATIONS The WRA_CS-3W & WRB-CS-3W Series are specially designed for applications where board. These products apply to: 1) Where the voltage of the input power supply is wide range (voltage range≤2:1); 2) Where isolation is necessary between input and output(Isolation Voltage≤1500VDC); 3) Where the regulation of the output voltage WRA1215CS-3W 12 24 9.0-18 18-36 22 40 *Input voltage can’t exceed this value, or will cause the permanent damage. Note: The load shouldn't be less than 10%, otherwise ripple will increase dramatically. Operation under 10% load will not damage the converter; However, they may not meet all specification listed. and the output ripple noise are demanded. COMMON SPECIFICATION Item Test Conditions Min Typ Max Units 95 % MODEL SELECTION Storage Humidity WRA1205CS-3W Operating Temperature -40 85 Storage Temperature -55 125 Rated Power Package Style Output Voltage Input Voltage Product Series 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 Temp. Rise at Full Load Lead Temperature 1.5mm from case for 10 seconds Isolation voltage Tested for 1 minute and 1mA max 1500 Isolation resistance Test at 500VDC Isolation capacitance 100KHz,1V 300 Cooling PF 100 mW Plastic (UL94-V0) Continuous, Automatic Recovery 1000 Weight Specifications subject to change without notice. MΩ 80 Free Air Convection Case Material Short Circuit Protection VDC 1000 No-load Power Consumption MTBF MORNSUN reserves the copyright °C 15 K hours 6 WRA_CS-3W & WRB_CS-3W A/1-2008 g Page 1 of 2 OUTPUT SPECIFICATIONS Recommended circuit Item Test Conditions Min Output Power See below products program 0.3 Positive voltage accuracy Refer to recommended circuit ±1 ±3 be connected to the input and output ends of the Negative voltage accuracy Refer to recommended circuit ±3 ±5 DC/DC converter, see (Figure 1). 10% To 100% Load (WRB_CS-3W) ±0.5 ±0.75 10% To 100% Load (WRA_CS-3W)* ±0.5 ±1.0 Line Regulation Input Voltage From Low To High ±0.2 ±0.5 Temperature drift (Vout) Refer To Recommended Circuit Load Regulation Ripple & Noise** 20MHz Bandwidth Switching Frequency 100% Load, Input Voltage Typ 50 Max Units 3 W % you want 100 mVp-p KHz *Dual output models unbalanced load (25/100%): ±5%Max. **Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power Converter section, application notes. Note: 1. All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. See below recommended circuits for more details. further decrease the D1 Ic R 3 Li n 2 Vi n %/°C to Single Output Vc ±0.03 300 If input/output ripple, an “LC” filtering network may 6 Cin +Vo 8 Cs 1 GND Co ut 0V 7 Dual Output D1 Ic R Vc Lin 2 3 Vin Lout 6 Cout Cin 0V 7 Lout 1 GND Cout 8 TYPICAL TEMPERATURE CURVE +Vo - Vo (Figure 1) However, the capacitance of the output filter capacitor must be proper. If the capacitance is too big, a startup problem might arise. For every channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor sees (Table 1). General: Cin: 12V 24V Operating Temp.( C ) OUTLINE DIMENSIONS FOOTPRINT DETAILS 2.50 First Angle Projection 1 2 3 5 6 7 8 (Bottom View) 10uF-47uF Cout: 100uF(Typ.) Lin: 4.7μH -120μH Lout: Cs: 2.2μH-10μH 10uF-47uF External Capacitor Table(Table 1) Single Vout Cout (uF) Dual Vout Cout (uF) (VDC) (Max) (VDC) (Max) 5 1000 ±5 680 9 680 ±9 470 12 470 ±12 330 15 330 ±15 220 RECOMMENDED FOOTPRINT Top view,grid:2.54mm(0.1inch) diameter:1.00mm(0.039inch) Dual Output & Single Output 3 100uF 5 Input current 22.00(0.866) While using unstable power source, please Note: Unit:mm(inch) Pin secti on:0.50*0.30mm(0.020*0.012inch) Pin secti on tolerances: 0.10mm( 0.004inch) General tolerances: 0.25mm( 0.010inch) ensure the output voltage and ripple voltage do Pin 1 2 3 5 6 Single Dual GND Vin CTRL NC +Vo GND Vin CTRL NC +Vo 7 8 0V CS 0V -Vo not exceed indexes of the converter. The preceding power source must be able to provide for converter sufficient starting current Ip (Figure 2). General: Ip ≤1.4*Iin-max Input Current(A) (Side View) 4.10 0.50 12.00 FOOTPRINT DETAILS NC:No Connection APPLICATION NOTE Ip Input Voltage Range CTRL Terminal When open or high impedance, the converter work well; When this pin is ‘high’; the converter shutdown; It should be note that the input current (Ic) should between 5-10mA, exceeding the Input Voltage (V) maximum 20mA will cause permanence damage to the converter。The value of R Can be derived as follows: R= Vc-VD-1.0 Ic MORNSUN reserves the copyright Specifications subject to change without notice. No parallel connection or plug and play. WRA_CS-3W & WRB_CS-3W A/1-2008 Page 2 of 2