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Solutions Search - LT3956 - 80VIN, 80VOUT Constant-Current, Constant-Voltage Converter

28V Input to 0V to 28V Output SEPIC SuperCap Charger with Input Current Limit

May 18th 2010
In this circuit, a supercapacitor is charged from it's fully uncharged state up to a full charge voltage of 28V. This wide output voltage range is accomplished using a SEPIC topology. The built in input current limit of the LT3956 simplifies the design. The LT3956 is a DC/DC converter designed to operate as a constant-current ...

Circuit 

 

94% Efficient 25W White LED Automotive Headlamp Driver

May 18th 2010
The LT3956 is a DC/DC converter designed to operate as a constant-current source and constant-voltage regulator. It is ideally suited for driving high current LEDs. It features an internal low side N-channel power MOSFET rated for 84V at 3.3A and driven from an internal regulated 7.15V supply. The fixed frequency, current-mode ...

Circuit LTspice