WRA-YS-1W＆WRB-YS -1W Series WIDE INPUT,ISOLATED & REGULATED Dual/Single Output SIP DC/DC Converter SELECTION GUIDE Input order code Output Efficiency Current(MA) Voltage(VDC) Voltage (VDC) (%,Typ) ±10 ±5 72 ±4 ±12 76 ±33 ±3 ±15 75 11 200 20 5 72 4.5-9.0 11 111 11 9 74 5 4.5-9.0 11 83 8 12 76 WRB0515YS-1W 5 4.5-9.0 11 67 7 15 75 WRA1205YS-1W 12 9.0-18.0 22 ±100 ±10 ±5 76 WRA1212YS-1W 12 9.0-18.0 22 ±42 ±4 ±12 80 1 Watt load,-40°C to 85°C WRA1215YS-1W 12 9.0-18.0 22 ±33 ±3 ±15 80 WRB1205YS-1W 12 9.0-18.0 22 200 20 5 76 ◆UL 94V-0 package material WRB1209YS-1W 12 9.0-18.0 22 111 11 9 78 WRB1212YS-1W 12 9.0-18.0 22 83 8 12 80 WRB1215YS-1W 12 9.0-18.0 22 67 7 15 80 WRA2405YS-1W 24 18.0-36.0 40 ±100 ±10 ±5 78 WRA2412YS-1W 24 18.0-36.0 40 ±42 ±4 ±12 81 WRA2415YS-1W 24 18.0-36.0 40 ±33 ±3 ±15 81 ◆ Power sharing on output WRB2405YS-1W 24 18.0-36.0 40 200 20 5 76 WRB2409YS-1W 24 18.0-36.0 40 111 11 9 78 ◆ I/O Isolation 1500VDC WRB2412YS-1W 24 18.0-36.0 40 83 8 12 81 WRB2415YS-1W 24 18.0-36.0 40 67 7 15 81 WRA4805YS-1W 48 36.0-72.0 80 ±100 ±10 ±5 76 WRA4812YS-1W 48 36.0-72.0 80 ±42 ±4 ±12 80 WRA4815YS-1W 48 36.0-72.0 80 ±33 ±3 ±15 80 WRB4805YS-1W 48 36.0-72.0 80 200 20 5 76 WRB4809YS-1W 48 36.0-72.0 80 111 11 9 78 WRB4812YS-1W 48 36.0-72.0 80 83 8 12 80 MODEL SELECTION WRB4815YS-1W 48 36.0-72.0 80 67 7 15 80 WR WRA A①05②05③Y④ S⑤-1W⑥ *Input voltage can't exceed this value,or will cause the permanent damage. Nominal Range Max* Max Min WRA0505YS-1W 5 4.5-9.0 11 ±100 FEATURES WRA0512YS-1W 5 4.5-9.0 11 ±42 WRA0515YS-1W 5 4.5-9.0 11 ◆RoHS compliant WRB0505YS-1W 5 4.5-9.0 WRB0509YS-1W 5 WRB0512YS-1W ◆Efficiency up to 86% ◆SIP Package ◆Wide temperature performance at full ◆No heatsink required ◆ Low ripple and good EMC Features ◆ Industry standard pinout ◆ Short Circuit Protection(automatic recovery) ◆ Internal SMD construction ◆ External On/Off control ◆ 2:1 wide input voltage range ①Product Series ②Input Voltage ③Output Voltage ④Wide (2:1) Input Range ⑤SIP Package Style ⑥ Rated Power DESCRIPTION OUTPUT SPECIFICATIONS The WRA_YS-1W & WRB_YS-1W series are specially designed for applications where a group of polar power supplies are isolated from the input power supply in a distributed power supply system on a circuit 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 and the output ripple noise are demanded. Parameter Test conditions Output power Refer to product program Line regulation Input voltage from low to high Load regulation Min. Typ. Max. Units 1 W ±0.2 ±0.5 % 10% to 100% full load(WRB_CKS-1W) ±0.5 ±0.75 % 10% to 100% full load(WRA_CKS-1W)* ±0.5 ±1.0 % ±1 ±3.0 % ±0.03 %/°C 25 75 MV p-p 75 MV p-p 0.1 Output voltage accuracy Refer to recommended circuit Temperature drift(Vout) Refer to recommended circuit Output Ripple** 20MHz Bandwidth Output Noise** 20MHz Bandwidth 25 Switching frequency 100% Full load,input voltage range 300 * 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. MICRODC reserves the copyright http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 1 of 3 Khz WRA-YS-1W＆WRB-YS -1W Series TYPICAL CHARACTERISTICS TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Storage humidity range Max. 95 NO-load power consumption 120 Units % °C Operating temperature -40 85 °C Storage temperature -55 125 °C 300 °C 35 °C Lead temperature 1.5mm from case for 10 seconds Temp.rise at full load 15 Cooling Temperature Derating Graph Free air convection Case material Plastic(UL94-V0) Continuous,automatic recovery Short circuit protection* 1 MTBF 1000 Weight S K hours 5 g *Supply voltage must be discontinued at the end of short circuit duration. RECOMMENDED CIRCUIT ISOLATION SPECIFICATIONS Parameter Test conditions Min. Isolation test voltage Flash tested for 1 minute and 1mA max 1500 Isolation resistance Test at Viso=500VDC 1000 Isolation capacitance 100KHz,1v Typ. Max. Units OUTPUT Graph VDC MΩ 35 pF APPLICATION NOTE SIZE Graph 1) Recommended circuit If you want to further decrease the input/output ripple, an°LC°filtering network may be connected to the input and output ends of the DC/DC converter, see (Figure 1). Lin 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: 5V,12V 24V,48V Cout: Lin: 100PF 10uF 47PF(typ.) 4.7PH ~120PH Lout:2.2PH ~10PH Cs: 10uF ~ 22uF 2) 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 maximum 20mA will cause permanence damage to the converter. The value of R Can be derived as follows : EXTERNAL CAPACITOR TABLE (TABLE 1) 3) Input current While using unstable power source, please ensure the output voltage and ripple voltage do not excced 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 4) No parallel connection or plug and play http://www.microdc.cn Single Vout Cout Dual Vout Cout (VDC) (μF) (VDC) (μF) 5 680 ±5 330 9 560 ±12 220 12 470 ±15 150 15 330 _ _ Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 3 WRA-YS-1W＆WRB-YS -1W Series OUTLINE DIMENSIONS ＆ FOOTPRINT DETAILS MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT RECOMMENDED FOOTPRINT Top view,grid:2.54mm(0.1inch) diameter:1.00mm(0.039inch) Note: Unit:mm[inch] Pin section tolerances:±0.10mm[±0.004inch] General tolerances:±0.25mm[±0.010inch] TUBE OUTLINE DIMENSIONS FOOTPRINT DETAILS Pin Single Dual 1 GND GND 2 Vin Vin 3 CTRL CTRL 5 NC NC 6 +V0 +V0 7 0V 8 CS 0V -V0 NC:No connection When the environment temperature is higher than 71 71℃,, the product output power should be less then 60% of the rated power. No parallel connection or plug and play. Note: Unit :mm[inch] General tolerances: ±0.50mm[±0.020inch] L=530mm[20.866inch] Tube Quantity: 22pcs L=220mm[8.661inch] Tube Quantity: 8pcs When the environment temperature is higher than 71 71°°C, the product output power should be less then 60% of the rated power. No parallel connection or plug and play. Use dual output simultaneously, forbid opening output pin(0V) to use as single output. Note: 1. The load shouldn't be less than 10%, otherwise ripple will increase dramatically. 2. Operation under 10% load will not damage the converter; However, they may not meet all specification listed. 3. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 4. In this datasheet, all the test methods of indications are based on corporate standards. 5. Only typical models listed, other models may be different, please contact our technical person for more details. RoHS COMPLIANT INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300°C for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are backward compatible with Sn/Pb soldering systems. Microdc Professional Power Module,Inc. Tel:0086-20-86000646 REACH COMPLIANT INFORMATION E-mail:[email protected] Website:http://www.microdc.cn http://www.microdc.cn This series has proven that this product does not contain harmful chemicals, it also has harmful chemical substances through the registration, inspection and approval. Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 3 of 3