AL3644 Datasheet | Diodes Incorporated

DUAL 1.5A CURRENT SOURCE CAMERA FLASH LED DRIVER Description The AL3644 is a dual LED flash driver that provides a high level of adjustability within a small solution size. The AL3644 utilizes a 2MHz or 4MHz fixed frequency synchronous boost converter to provide power to the dual 1.5A constant current LED sources. The dual 128 level current sources provide the flexibility to adjust the current ratios between LED1 and LED2. An adaptive regulation method ensures the current sources remain in regulation and maximizes efficiency. Features of the AL3644 are controlled via an I2C-patible interface. These Features include: hardware flash and hardware torch pins (STROBE and TORCH/TEMP),...