SP6686
DESCRIPTION
The SP6686 is a current-regulated charge pump ideal for powering high brightness LEDs for camera flash applications.
The charge pump can be set to regulate two current levels for FLASH and TORCH modes. The SP6686 automatically switches modes between step-up and step-down ensuring that LED current does not depend on the forward voltage. A low current sense reference voltage (50m V) allows the use of small 0603 current sensing resistors.
The SP6686 is designed to operate from a single cell lithium-ion battery or fixed 3.3V or 5.0V power rails and is available in a Ro HS pliant, “green”/halogen free space saving 10-pin 3mmx3mm DFN package
APPLICATIONS
- White LED Torch/Flash for Mobile Phones, DSCs and Camcorders
- Generic Lighting/Flash/Strobe Applications
- White LED Backlighting
FEATURES
- Output Current up to 400m A
- Up to 94% Efficiency in Torch Mode
- Adjustable FLASH Mode
- x1 and x2 Automatic Modes for High
Efficiency
- Minimum External ponents: No
Inductors
- 2.4MHz...
