WRB_S-3WR2
1 /6Pages

Catalog excerpts

3W, Wide input voltage, isolated & regulated dual / single output DC/DC converter Patent Protection RoHS FEATURES • Compact SIP package • Wide input voltage range (2:1) • Operating temperature range: -40°C to +85C • Isolation voltage: 1.5K VDC • Low ripple & noise • Short circuit protection (self-recovery) • Remote On/Off • High Power Density • EN60950 approval WRA_S-3WR2 & WRB_S-3WR2 series are isolated 3WDC-DCproducts with 2:1 input voltage and conventional voltage output. The product hasarelativelycompactSIP-8plastic package, and features high efficiency, operating temperature of -40°C~+85C, remote control, and continuous short-circuit protection. The smaller size and fine cost design make the converter an deal solution in communication, instruments, and Industrial electronics applications. Selection Guide MORN5UN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and

Open the catalog to page 1

Output Specifications MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

Open the catalog to page 2

General Specifications Physical Specifications Product Characteristic Curve MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

Open the catalog to page 3

Design Reference All the DC/DC converters of this series are tested according to the recommended circuit (see Fig. 2) before delivery. If a further decrease of the input and output ripple is required, properly increase the input & output of additional capacitors Cin1, Cin2, Cs and Cout; or select capacitors of low equivalent impedance like series capacitor, etc. Cs is used to reduce ripple. No need to add Cs, if ripple meets the demand .Appropriate filter capacitance shall be chosen, start-up problems may be caused if the capacitance is too large. For each output circuit, under the condition...

Open the catalog to page 4

Parameter description: Notes: ® Part ® in Fig. 3 is used for EMS test while part ® is used for EMI filtering; and parts ® and ® may be selected based on needs. ® Vc is the voltage of the Ctrl end relative to the GND of the input grounding; Vd is the positive-going conduction pressure drop of D1; Ic is the current flows into the Ctrl end and its value is generally 5-10mA, see Fig. 3-® for the peripheral circuit of Ctrl end; ® If there is no recommended parameters, no external component is required. 3. Ctrl end The modules are of normal output when the Ctrl end is suspended or of high resistance;...

Open the catalog to page 5

DC/DC Converter WRA_S-3WR2 & WRB_S-3WR2 Series Dimensions and Recommended Layout Notes: 1. Packing information please refer to Product Packing Information which can be downloaded from www.mornsun-power.com. Packing bag number: 58210004; 2. Recommend to use module with more than 5% load, if not, the ripple of the product may exceeds the specification, but does not affect the reliability of the product; 3. The recommended unbalance degree of the dual output module load is ≤±5%; if the degree exceeds ±5%, than the product performance cannot be guaranteed to comply with all parameters in the datasheet....

Open the catalog to page 6