IS31BL3233A Description
The IS31BL3233A is the ideal power solution for high-power flash LEDs used with cell phone camera modules or digital still cameras. It is a highly integrated step up DC-DC converter with very high switching frequency, fixed at 2MHz, providing a very small total solution for portable photo flash. The IS31BL3233A has separate Flash Mode and Torch Mode enable pins for maximum flexibility.
IS31BL3233A Key Features
- Input voltage range: 2.7V~5.5V
- Dual flash LED outputs
- Drive up to total 1.5A or 0.75A per channel
- 1s time out in Flash Mode to protect LED
- High efficiency up to 93% (1A, Flash Mode)
- 2MHz step-up converter
- Independent Flash Mode enable and Torch Mode
- Torch Mode dimming via PWM control
- Integrated thermal regulation control
- LED open/short protection