General Description

        The ET93010 is an ultra-small LED flash driver that provides a high level of adjustability within a small solution size. The ET93010 utilizes a 2-MHz or 4-MHz fixed-frequency synchronous boost converter to provide power to the 1.6A constant current LED source. The 128 levels current source provides the flexibility to adjust the current ratios in Flash/Torch/IR modes. An adaptive regulation method ensures the current source remain in regulation and maximizes efficiency. The ET93010 provides IVFM protection mode to prevent system reset or shutdown under low battery condition.

        The ET93010 are controlled via an I2C compatible interface. These features include: flash/torch current, flash timeout duration, IVFM. The ET93010 also provides hardware flash pin (STROBE/TX) to control Flash events.

        The ET93010 is available in WLCSP8 Package and operates over an ambient temperature range of -40℃ to +85℃.

Features

●  High efficiency 2MHz or 4MHz fixed frequency DC-DC Boost converter with soft start allows small coils

●  1.6A LED current source programmability

●  Adaptive regulation method for constant current

●  Accurate and programmable LED flash current range from 11mA to 1.6A, torch current up to 375mA

●  Flash timeout values up to 1.6 seconds

●  Optimized flash LED current during low battery conditions

●  > 85% Efficiency in Torch Mode (at 100 mA) and Flash Mode (at 1 A to 1.6 A)

●  Grounded cathode LED operation for improved thermal management

●  Synchronization Input for RF Power Amplifier Pulse Events(TX)

●  Over-voltage and under-voltage protection

●  LED/VOUT short circuit protection

●  Less than 1μA Shutdown Current

●  WLCSP8 Package, 1.52m x 0.8mm

Application Circuit