SC604A Datasheet PDF | Semtech Corporation

Semtech Corporation SC604A

The SC604A is a very high efficiency charge pump white LED driver driver from the mAhXLifeTM family of products, optimized for Li-Ion battery applications. The four (4) LED outputs are current matched for consistent LED brightness. Using four LEDs, each at 20mA for a total IOUT= 80mA, the SC604A can use less than 83mA from the supply for most of the battery life.

Part No.	SC604A
Datasheet	SC604A Download
Manufacturer	Semtech Corporation
Description	Low Noise - High Efficiency Regulated White LED Driver
Buy	Stock & Price

DESCRIPTION

-NOVEMBER

FEATURES

9, 2000 Very high efficiency over 90% of battery life Extremely low battery current is achieved by automatically reconfiguring the charge pump to match circuit conditions. Patented low noise mode switching circuitry and constant output current allow the use of extremely small input and output capacitors. SC604A Peak efficiency over 92% Current regulation for up to 4 LEDs Digital 3 bit output control logic Current matching tolerance of ±3% typical Wide current range per LED [0.5mA - 30mA] High available total LED current = 4 ILED = 120mA Low Shutdown Current: 1µA typical Soft start / In-rush current limiting Short circuit protection MLP-16 [4x4] Package Fixed frequency 250kHz 1x, 1.5x and 2x charge pump modes of operation

APPLICATIONS

Cellular phones LED backlighting PDA power supplies Portable devices Electronic books Wireless web appliances LCD Modules Typical Application Circuit Patent Pending VIN BATTERY 1µ F VOUT 1µ F SC604A EN CTRL0 CTRL1 CTRL2 GND C...