Ultra-small LED flash driver offers a high level of adjustability

The LM36010 from Texas Instruments is an ultra-small LED flash driver that provides a high level of adjustability. With a total solution size of 7mm2, it can produce up to 1.5A of LED flash current or up to 376mA of torch current. The device utilizes a 2MHz or 4MHz fixed-frequency, synchronous boost converter to power the 1.5A constant current LED source. An adaptive regulation method ensures the current source remains in regulation and maximizes efficiency as it controls the current from 11mA up to 1.5A in flash mode or from 2.4mA up to 376mA in torch mode. Features of the device are controlled via an I2C-compatible interface. These features include: hardware flash (STROBE) and 128 programmable currents for both flash and movie mode (torch). The 2MHz or 4MHz switching frequency, OVP, and adjustable current limit allow for the use of tiny, low-profile inductors and ceramic capacitors. This device operates over a –40C to +85C ambient temperature range.