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VRB3-D12-S12-DIP Datasheet(PDF) 3 Page - CUI INC |
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VRB3-D12-S12-DIP Datasheet(HTML) 3 Page - CUI INC |
3 / 3 page V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062 www.v-infinity.com 1-866-372-1258 Rev. 12-2006 3/ 3 VRB3-DIP Series Dc-Dc Converter Typical Characteristics Operating Temp.( ) C Temperature Derating Graph 23 9 1011 2322 16 1514 2,3 9,10,11,15 14 16 22 23 GND NC +Vo 0V Vin Vin Pin Bottom View 23 9 10 11 23 22 1615 14 2 x 2.54 31.80 15.24 2.54 22.86 (Bottom View) (Side View) 20.30 9.45 0.50 4.00 MP:10.5 Note: All Pins on a 2.54mm pitch; All Pin diameters are 0.50 mm(Tolerance:±0.10); All dimensions in mm. DC DC Vin GND Vout 0V Cin Input Voltage (V) Input Voltage Range Ip Outline Dimensions & Recommended Footprint Details Application Note Recommended circuit All the VRB3-DIP Series have been tested according to the following rec- ommended testing circuit before leaving factory. This series should be tested under load. Never be tested under no load (See Figure 1 & 2). 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.(See table 1).If you want to use the products in high EMI, please choose our metal packaged products. Input Current When it is used in unregulated power supply., be sure that the fluctuating range of the power supply and the rippled voltage do not exceed the module standard. Input current of power supply should afford the start- up current of this kind of DC/DC module. (See figure 2) Pin Connections External Capacitor Although this series of DC/DC converter can work without external capacitor, in order to keep an optimum performance, however, it needs external capacitor. (See Table 1) Requirement on Output Load To ensure this module operate efficiently and reliably, a minimum load is specified for this kind of DC/DC converter in addition to a maximum load (namely full load). During operation, make sure the specified range of input voltage is not exceeded, the minimum out put load is not less than 10% Of the full load, and that this product should never be operated under no load!!! If the actual load is less below the specified minimum load. the output ripple of this type of DC/DC con- verter will increase drastically and at the same time efficiency & reliability of the circuit will decrease deeply .If the actual output power from the load in your circuit is very small. please connect a resistor with proper resistance at the output end to in parallel to increase the load, or use our company’s other products with a lower rated output power. The products cannot be used in parallel. Table 1 Vin Cin Cout (0+70°C) Cout (-40+85°C) 5V & 12V 100uF 24V & 48V 10uF 100uF (electrolytic capacitor) 47uF (tantalum capacitor) |
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