SC635
SC635 is Charge Pump Flash LED Driver manufactured by SEMTECH.
POWER MANAGEMENT Description
The SC635 is a high-current charge pump designed specifically for use with white LEDs used in camera flash applications. Only two small bucket capacitors are required to develop the output drive, providing a low EMI solution pared to inductive boost regulators. The SC635 has two modes of operation: Flash mode and Spotlight mode. In Flash mode, the SC635 is capable of delivering 200mA to a high-intensity LED during image capture. In Spotlight mode the SC635 outputs 40% of the Flash mode current for general purpose lighting or status indication. An external resistor is connected in series with the LED to set the current. In Flash mode, this resistor can...
