WRA_ZD-6W＆WRB_ZD -6W Series 6W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC DC--DC CONVERTER SELECTION GUIDE FEATURES Input ◆Wide (4:1) Input Range Output Efficiency ◆Short Circuit Protection(automatic recovery) Order code Voltage(VDC) (%.Typ.) Nominal ◆1500VDC Isolation ◆Operating Temperature: -40℃～﹢85℃ ◆Five sided metal shielding ◆No external component required ◆Internal SMD construction Current(mA) Voltage Range Max* (VDC) Max. Min. WRA2405ZD-6W 24 9-36 40 ±5 ±600 ±60 76 WRA2412ZD-6W 24 9-36 40 ±12 ±250 ±25 81 WRA2415ZD-6W 24 9-36 40 ±15 ±200 ±20 83 WRB2403ZD-6W 24 9-36 40 3.3 1500 150 74 WRB2405ZD-6W 24 9-36 40 5 1200 120 76 ◆RoHS Compliance WRB2412ZD-6W 24 9-36 40 12 500 50 81 ◆MTBF>1000Khours WRB2415ZD-6W 24 9-36 40 15 400 40 81 WRA4805ZD-6W 48 18-72 80 ±5 ±600 ±60 85 WRA4812ZD-6W 48 18-72 80 ±12 ±250 ±25 83 WRA4815ZD-6W 48 18-72 80 ±15 ±200 ±20 85 WRB4803ZD-6W 48 18-72 80 3.3 1500 150 74 WRB4805ZD-6W 48 18-72 80 5 1200 120 78 WRB4812ZD-6W 48 18-72 80 12 500 50 80 WRB4815ZD-6W 48 18-72 80 15 400 40 80 MODEL SELECTION WRB①24②12③Z④ D⑤-6W⑥ ①Product Series ③Output Voltage ⑤DIP Package Style ②Input Voltage ④Wide (4:1) Input Range ⑥ Rated Power APPLICATIONS The WRA_ZD-6W&WRB_ZD-6W Series are specially designed for applications where a wide range input voltage 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≤4:1); 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. *Input voltage can’t exceed this value,or will cause the permanent damage. COMMON SPECIFICATIONS Parameter Conditions Min. Units 95 % Operating temperature -40 85 ℃ Storage temperature -55 125 ℃ 40 Temp. rise at full load Lead temperature ℃ 300 1.5mm from case for 10 seconds Cooling Free Air Convection Short circuit protection Continuous,automatic recovery Case material Steel,nickel plated, plastic ℃ Isolation voltage Tested for1 minute and 1mA max 1500 VDC Isolation resistance Test at 500VDC 1000 MΩ MTBF http://www.microdc.cn Max. Storage humidity 1000 Isolation Capacitance MICRODC reserves the copyright Typ. 1000 Weight Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 pF K hours 17 g page 1/3 WRA_ZD-6W＆WRB_ZD -6W Series TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Output power See below products program 0.6 Positive voltage accuracy Refer to recommended circuit Negative voltage accuracy TYPICAL CHARACTERISTICS Typ. Max. Units 6 W ±1 ±3 % Refer to recommended circuit ±3 ±5 % Load regulation Form 10% to 100% load ±0.5 ±2* % Line regulation Input voltage from low to high ±0.2 ±0.5 % Temperature drift (Vout) Refer to recommended circuit ±0.02 Ripple** 20MHz Bandwidth 20 50 mVp-p Noise** 20MHz Bandwidth 50 100 mVp-p Switching frequency 100% load, input voltage range 300 Temperature Derating Graph %/℃ KHz RECOMMENDED CIRCUIT * Dual output models unbalanced load: ±5%. Output Graph ** Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power Converter section, application notes. APPLICATION NOTE Requirement on output load In order to ensure the product operate efficiently and reliably,in addition to a max load(namely full load), a minimum load is specified for this kind of DC/DC converter.Make sure the specified range of input voltage is not exceeded,the minimum output load no less than 10% load load.If the actual load is less than the specified minimum load, the output ripple may increase sharply while its efficiency and reliability will reduce greatly.If the actual output power is very small,please add an appropriate resistor as extra loading,or contact our company for other lower output power products. Recommended Circuit All the WRA_ZD-6W&WRB_ZD-6W Series have been tested according to the following recommended testing circuit before leaving factory.This series should be tested under load(see Figure 1). If you want to further decrease the input/output ripple,you can increase capacitance properly or choose capacitors with low ESR. However, the capacitance should not be too high, or may cause start-up problem. General: Cin: 24V＆48V 10μF-47μF Cout: 10μF/100mA Input current Output External Capacitor Table(Table 1) While using unstable power source,please ensure the output voltage and ripple voltage do 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≤1.6*Iin-max No parallel connection or plug and play http://www.microdc.cn Single Vout Cout Dual Vout Cout (VDC) (μF) (VDC) (μF) 3.3 2200 ±5 680 5 1000 ±12 330 12 470 ±15 220 15 330 -- -- Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 page 2/3 WRA_ZD-6W＆WRB_ZD -6W Series OUTLINE DIMENSIONS ＆ FOOTPRINT DETAILS MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT Note: Unit:mm[inch] Pin section tolerances:±0.10mm[±0.004inch] General tolerances:±0.25mm[±0.010inch] RECOMMENDED FOOTPRINT Top view grid:2.54mm(0.1inch) diameter:1.00mm(0.039inch) TUBE OUTLINE DIMENSIONS FOOTPRINT DETAILS Pin Single Dual 2、3 GND GND 9 NC 0V 11 NC -Vo 14 +Vo +Vo 16 0V 0V 22、23 Vin Vin 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. Use dual output simultaneously,forbid pening output pin (0V) to use as single output. Note: Note: Unit :mm[inch] General tolerances:±0.50mm[±0.020inch] L=530mm[20.866inch] Tube Quantity: 15pcs L=220mm[8.661inch] Tube Quantity: 6pcs 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. http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 page 3/3