描述 Description

The ET93010A is an ultra-small LED flash driver that provides a high level of adjust ability with a small solution size. The ET93010A utilizes a 2MHz or 4MHz fixed-frequency synchronous boost converter to provide power to the 1.5A constant current LED source. The 128 levels current source in Flash/IR modes and 256 levels current source in Torch mode provide the flexibility to adjust the current ratios. An adaptive regulation method ensures the current source remain in regulation and maximizes efficiency. The ET93010A provides IVFM protection mode to prevent system reset or shutdown under low battery condition.The ET93010A are controlled via an I2C compatible interface. These features include: flash/torch current, flash timeout duration, IVFM. The ET93010A also provides hardware pin (STROBE/TX) to control Flash/Torch events.A 2MHz or 4MHz switching frequency options, over-voltage protection (OVP), under-voltage Protection and adjustable current limit allow for the use of tiny, low-profile inductors and ceramic capacitors. The device offers programmable currents in a Flash or Movie Mode (Torch) condition.The ET93010A is available in WLCSP8 Package and operates over an ambient temperature range of -40°C to +85°C.

特性 Features

? High efficiency 2MHz or 4MHz fixed frequency DC-DC Boost converter with soft start

? Accurate and programmable LED currents
- Flash current range from 11mA to 1.5A
- Torch current range from 1mA to 375mA

? Adaptive regulation method for constant current

? Flash timeout values up to 1.6 seconds

? Optimized flash LED current during low battery conditions

? Grounded cathode LED operation for improved thermal management

? Hardware strobe enable

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

? 400KHz I2C compatible interface

? Over-voltage and under-voltage protection

? LED/VOUT short circuit protection

? Less than 1uA shutdown current

應(yīng)用 Application

? Flash/torch/video light for smart phones, feature-phones, tablets, DSCs, DVCs
? IR LED Driver
? Video Surveillance
? IP Camera
? Barcode Scanner
? Portable Data Terminal