Datasheet4U Logo Datasheet4U.com

BCT3142 - 1.1A Buck/Boost Charge Pump LED Driver

Description

The BCT3142 is a current-regulated charge pump ideal for powering high brightness LEDs for camera flash applications.

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

Features

  • a very low shutdown current, an automatic soft-start mode to limit inrush current, as well as voltage and over thermal shutdown control. A low current sense reference voltage (47mV) allows the use of small 0603 current sensing resistors.

📥 Download Datasheet

Datasheet Details

Part number BCT3142
Manufacturer BROADCHIP
File Size 1.05 MB
Description 1.1A Buck/Boost Charge Pump LED Driver
Datasheet download datasheet BCT3142 Datasheet

Full PDF Text Transcription

Click to expand full text
BCT3142 1.1A Buck/Boost Charge Pump LED Driver BCT3142 1.1A Buck/Boost Charge Pump LED Driver GENERAL DESCRIPTION The BCT3142 is a current-regulated charge pump ideal for powering high brightness LEDs for camera flash applications. The charge pump can be set to regulate two current levels for FLASH and TORCH modes. The BCT3142 incorporates a 1-wire interface to program the flash LED current at 8 levels and flash timeout at 2 leve. The BCT3142 supports PWM dimming to adjust the LED brightness during torch application by simply providing a PWM signal to flash pin. The BCT3142 automatically switches modes between step-up 2x and step-down 1x ensuring that LED current does not depend on the forward voltage. It switches at 1.9MHz, allowing the use of tiny components.
Published: |