SC618 Datasheet PDF | Semtech Corporation

Semtech Corporation SC618

The SC618 is a high-current charge pump designed specifically for use with white LEDs used in camera flash applications. The SC618 has two modes of operation: flash mode and spotlight mode. In flash mode, the SC618 is capable of delivering 500mA of regulated current for a duration of 500ms or up to 700mA for a reduced duration.

Part No.	SC618
Datasheet	SC618 Download
Manufacturer	Semtech Corporation
Description	Charge Pump Flash LED Driver
Buy	Stock & Price

FEATURES

Flash and spotlight — two selectable modes Flash mode — up to 700mA output Flash mode — 500mA max output (over rated voltage, temperature, and load conditions) Flash mode safety timer shut-off — 1 second Spotlight mode set to 40% of flash current Spotlight mode — up to 280mA output Spotlight mode —1x mode (under most conditions) for best efficiency Input range — 3.0V to 5.25V External flash control pin for synchronization to a camera module or graphics controller Short-circuit, over-voltage, and over-temperature protection Soft-start functionality Separate flash and spotlight control inputs for maximum versatility Ultra-thin package MLPD-UT-10 — 3mm x 3mm x 0.6mm

DESCRIPTION

Only two small bucket capacitors are required to develop the output drive, providing a low EMI solution compared to inductive boost regulators. A safety timer is also included to ensure the LED cannot be left on indefinitely and overheat. In spotlight mode the SC618 outputs 40% of the flash mode current and can remain enabled continuously.