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IS31BL3231 - FLASH LED DRIVER

General Description

The IS31BL3231 is a current-regulated charge pump and ideal for powering high brightness LEDs for camera flash and torch applications.

The charge pump can be set to regulate two current levels for FLASH and TORCH modes.

Key Features

  • Operates from 2.7V to 5.5V.
  • Up to 90% efficiency in Torch Mode.
  • Output current up to 750mA.
  • Adjustable output current in Flash Mode.
  • Minimum external components, no external inductor required.
  • Automatic boost mode.
  • Less than 1µA shutdown current.
  • Low ripple and EMI.
  • Over voltage protection on output.
  • Short and over temperature protections.
  • Available in DFN-10 (3mm × 3mm) package.

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Other Datasheets by ISSI (now Infineon)

Part Number Description
IS31BL3230 8 CHANNELS CONSTANT CURRENT LED DRIVER
IS31BL3232 FLASH LED DRIVER
IS31BL3233A 1.5A FLASH/TORCH LED DRIVER
IS31BL3212 FOUR CHANNEL CONSTANT CURRENT LED DRIVER
IS31BL3229 8-LED BACKLIGHT DRIVER

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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IS31BL3231 FLASH LED DRIVER July 2015 GENERAL DESCRIPTION The IS31BL3231 is a current-regulated charge pump and ideal for powering high brightness LEDs for camera flash and torch applications. The charge pump can be set to regulate two current levels for FLASH and TORCH modes. The IS31BL3231 automatically switches between linear and boost modes ensuring that LED current does not depend on the LED forward voltage. IS31BL3231 provides low cost, space saving solution for driving LED. It also integrates thermal and short circuit protection function. IS31BL3231 is available in DFN-10 (3mm × 3mm). It operates from 2.7V to 5.5V over the temperature range of -40°C to +85°C. FEATURES  Operates from 2.7V to 5.