WRA-YGD-2W&WRB-YGD-2W Series 2W,Wide Input Range SMD, Dual/Single Output DC/DC Converter Converterss Absolute Maximum Ratings Parameter FEATURES Min. Max. Unit. 5VDC Input Models -0.7 11 VDC Input Sure Voltage 12VDC Input Models -0.7 25 VDC (1000 mS) 24VDC Input Models -0.7 50 VDC 48VDC Input Models -0.7 100 VDC Lead Temperature(1.5mm from case for 10 Sec.) --- 260 ℃ Internal Power Dissipation --- 1,800 mW ◆Ultra-wide 2:1 input range Environmental Specifications ◆DIP-16 package ◆Efficiency up to 81% ◆Temperature range –40°C to +85°C ◆HMTBF＞1,000,000 Hours ◆Low Ripple and Noise ◆ Short Circuit Protection Parameter Conditions Min. Max. Unit. Operating Temperature Ambient -40 +65 ℃ Operating Temperature Case -40 +90 ℃ Storage Temperature -40 +125 ℃ Humidity --- 95 % Cooling Free-Air Convection Conducted EN55022 Class A Exceeding the absolute maximum ratings of the unit could cause damage. ◆ I/O isolation 1500 VDC These are not continuous operating ratings. ◆ Complies with EN55022 Class A Capacitive Load ◆ Fully RoHS compliant ◆ UL 94 V-0 Package Material ◆ Internal SMD Construction ② ③ ④ 3.3V 5V 12V 15V ±5V * ±12V * ±15V* Unit 2200 1000 110 470 100 20 47 uF * For each output Input Fuse Selection Guide MODEL SELECTION ① Models by Vout Maximum Capacitive Load ⑤ ⑥ WR WRA A 24 05 Y GD -2W(119) 5V Input Models 12V Input Models 24V Input Models 48V Input Models 1000mA Slow - Blow Type 500mA Slow - Blow Type 250mA Slow - Blow Type 120mA Slow - Blow Type ①Product Series ②Input Voltage ③Output Voltage ④Wide (2:1) Input Range ⑤DIP16 Package Style ⑥Rated Power(Output current) DESCRIPTION The WRA-YGD-2W & WRB-YGD-2W Series power modules are low-profile dc-dc converters that operate over input voltage of 4.5-9VDC,9-18VDC,18-36VDC and 36-75VDC which provide precisely regulated output voltages of 3.3V,5V,12V,15V,±5V,±12V and ±15VDC. The WRA-YGD-2W & WRB-YGD-2W Series is an excellent for data communication equipments,distributed equipments,mobile power battery driven systems,telecommunication equipments,mixed analog/machine control equipments,computer peripheral systems and industrial robot systems. The modules have a maximum power rating of 2W and a typical full-load efficiency of 81%,continuous short circuit,30mV output ripple,built-in filtering for both input and output minimize the need for external filtering. http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 1 of 6 WRA-YGD-2W&WRB-YGD-2W Series SELECTION GUIDE MICRODC reserves the copyright Input Output VDC Max mA Min mA @Max. Load mA (Typ.) @No Load mA (Typ.) Reflected Ripple Current % (Max.) WRB0503YGD-500 3.3 500 125 471 40 100 70 WRB0505YGD-2W 5 400 100 548 40 100 73 WRB0512YGD-2W 12 167 42 534 40 100 75 15 134 33 582 40 100 73 WRA0505YGD-2W ±5 ±200 ±50 667 40 100 64 WRA0512YGD-2W ±12 ±83 ±21 615 40 100 69 WRA0515YGD-2W ±15 ±67 ±17 598 40 100 71 WRB1203YGD-500 3.3 500 125 184 20 25 73 WRB1205YGD-2W 5 400 100 217 20 25 77 WRB1212YGD-2W 12 167 42 209 20 25 80 15 134 33 220 20 25 80 WRA1205YGD-2W ±5 ±200 ±50 242 20 25 73 WRA1212YGD-2W ±12 ±83 ±21 224 20 25 78 WRA1215YGD-2W ±15 ±67 ±17 226 20 25 78 WRB2403YGD-500 3.3 500 125 96 10 15 72 WRB2405YGD-2W 5 400 100 109 10 15 77 WRB2412YGD-2W 12 167 42 109 10 15 80 15 134 33 108 10 15 81 WRA2405YGD-2W ±5 ±200 ±50 119 10 15 74 WRA2412YGD-2W ±12 ±83 ±21 112 10 15 78 WRA2415YGD-2W ±15 ±67 ±17 110 10 15 80 WRB4803YGD-500 3.3 500 125 49 8 10 71 WRB4805YGD-2W 5 400 100 57 8 10 73 WRB4812YGD-2W 12 167 42 53 8 10 79 15 134 33 55 8 10 79 WRA4805YGD-2W ±5 ±200 ±50 62 8 10 71 WRA4812YGD-2W ±12 ±83 ±21 57 8 10 77 WRA4815YGD-2W ±15 ±67 ±17 57 8 10 77 Voltage Model Number VDC 5 ( 4.5 ~ 9 ) WRB0515YGD-2W 12 ( 9 ~ 18 ) WRB1215YGD-2W WRB2415YGD-2W WRB4815YGD-2W Output Current Voltage 24 ( 18 ~ 36 ) 48 ( 36 ~ 75 ) Input Current Efficiency @Max. Load % (Typ. Input Specifications Parameter Mode Min. Typ. Max. Unit. 5V Input Models 3.5 4 4.5 VDC 12V Input Models 4.5 7 9 VDC 24V Input Models 8 12 18 VDC 48V Input Models 16 24 36 VDC 5V Input Models --- 3.5 4 VDC 12V Input Models --- 6.5 8.5 VDC 24V Input Models --- 11 17 VDC 48V Input Models --- 22 34 VDC Reverse Polarity Input Current All Models --- --- 1 A Short Circuit Input Power All Models --- --- 1500 mW Input Filter All Models Start Voltage Under Voltage Shutdown Pi Filter Output Specifications Parameter Conditions Output Voltage Accuracy Min. Typ. Max. Unit. --- ±1.0 ±2.0 % Output Voltage Balance Dual Output, Balanced Loads --- ±1.0 ±2.0 % Line Regulation Vin=Min. to Max --- ±0.3 ±0.5 % Load Regulation Io=25% to 100% --- ±0.5 ±0.75 % --- 30 50 mV P-P --- --- 75 mV P-P --- --- 15 mV rms Ripple & Noise (20MHz) Ripple & Noise (20MHz) Over Line, Load & Temp Ripple & Noise (20MHz) 120 --- --- % Transient Recovery Time Over Power Protection 25% Load Step Change --- 100 300 uS Transient Response Deviation 25% Load Step Change --- ±3 ±5 % --- ±0.01 ±0.02 %/] Temperature Coefficien Output Short Circuit http://www.microdc.cn Continuous Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 6 WRA-YGD-2W&WRB-YGD-2W Series General Specifications Parameter Conditions Min. Typ. Max. Unit. Isolation Voltage Rated 60 Seconds 1500 --- --- VDC Isolation Voltage Test Flash Tested for 1 Second 1650 --- --- VDC Isolation Resistance 500VDC 1000 --- --- MΩ Isolation Capacitance 100KHz,1V --- 250 420 pF --- 300 --- KHz 1000 --- --- K Hours Switching Frequency MTBF MIL-HDBK-217F @ 25℃, Ground Benign Notes : 1. Specifications typical at Ta=+25℃, resistive load, nominal input voltage, rated output current unless otherwise noted. 2. Transient recovery time is measured to within 1%error band for a step change in output load of 75% to 100%. 3. Ripple & Noise measurement bandwidth is 0-20 MHz. 4. These power converters require a minimum output loading to maintain specified regulation. 5. Operation under no-load conditions will not damage these modules; however, they may not meet all specifications listed. 6. All DC/DC converters should be externally fused on the front end for protection. 7. Other input and output voltage may be available, please contact factory. 8. Specifications subject to change without notice Block Diagram Single Output Dual Output Input Voltage Transient Rating http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 3 of 6 WRA-YGD-2W&WRB-YGD-2W Series Input Voltage Transient Rating Efficiency vs Input Voltage ( Single Output ) Efficiency vs Input Voltage ( Dual Output ) Efficiency vs Output Load ( Single Output ) Efficiency vs Output Load ( Dual Output ) Ambient Temperature ℃ Derating Curve http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 4 of 6 WRA-YGD-2W&WRB-YGD-2W Series Test Configurations To provide protection in a fault (output overload) condition, the unit is equipped Input Reflected-Ripple Current Test Setup with internal current limiting circuitry and can endure current limiting for an Input reflected-ripple current is measured with a inductor Lin (4.7uH) and Cin (220uF, ESR < 1.0[ at 100 kHz) to simulated source impedance. unlimited duration. At the point of current-limit inception, the unit shifts from voltage control to current control. The unit operates normally once the output current is Capacitor Cin, offsets possible battery impedance. brought back into its specified range. Current ripple is measured at the input terminals of the module, measurement Input Source Impedance bandwidth is 0-500KHz. The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect the stability of the power module. In applications where power is supplied over long lines and output loading is high, it may be necessary to use a capacitor on the input to insure startup. By using a good quality low Equivalent Series Resistance (ESR < 1.0[ at 100 kHz) capacitor of a 8.2uF for the 5V input devices, a 3.3uF for the 12V input devices and a 1.5uF for the 24V and 48V devices, capacitor mounted close to the Peak-to-Peak Output Noise Measurement Test power module helps ensure stability of the unit. Use a Cout 0.47uF ceramic capacitor. Scope measurement should be made by using a BNC socket, measurement bandwidth is 0-20 MHz. Position the load between 50 mm and 75 mm from the DC/DC Converter. Output Ripple Reduction A good quality low ESR capacitor placed as close as practicable across the load will give the best ripple and noise performance. To reduce output ripple, it is recommended that 3.3uF capacitors are used on output. Design & Feature Considerations Maximum Capacitive Load The WRA(B)-YGD-2W series has limitation of maximum connected capacitance on the output. The power module may operate in current limiting mode during start-up, affecting the ramp-up and the startup time. The maximum capacitance can be found in the data sheet. http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 5 of 6 WRA-YGD-2W&WRB-YGD-2W Series Mechanical Dimensions Physical Characteristics Case Size : 23.8*13.7*7.62 mm 0.94*0.54*0.30 inches Tolerance Millimeters X.X±0.25 X.XX±0.13 ±0.05 Pin Case Material: Non-Conductive Black Plastic Weight: 5.1g Flammability: UL94V-0 Inches X.XX±0.01 X.XXX±0.005 ±0.002 RECOMMENDED FOOTPRINT DETAILS Pin Connections Pin Single Output Dual Output 1 -Vin -Vin 7 NC NC 8 NC Common 9 +Vout +Vout 10 -Vout -Vout 16 +Vin +Vin NC: No Connection All dimensions in inches ±0.01 (mm ±0.25mm) 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 6 of 6