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BCT3144 - High Efficiency Synchronous Boost Converter

Description

The BCT3144 is a dual LED flash driver that provides a high level of adjustability within a small solution size.

The BCT3144 utilizes a 2-MHz or 4-MHz fixed-frequency synchronous boost converter to provide power to the dual 1.5A constant current LED sources.

Features

  • of the BCT3144 are controlled via an I2C-compatible interface. These features include: hardware flash and hardware torch pins (STROBE and TORCH/TEMP), a TX interrupt, and an NTC thermistor monitor. The device offers independently programmable currents in each output leg to drive the LEDs in a Flash or Movie Mode (Torch) condition. The 2-MHz or 4-MHz switching frequency options, over voltage protection (OVP), and adjustable current limit allow for the use of tiny, low-profile inductors and (10-µF.

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Datasheet Details

Part number BCT3144
Manufacturer BROADCHIP
File Size 1.22 MB
Description High Efficiency Synchronous Boost Converter
Datasheet download datasheet BCT3144 Datasheet

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Full PDF Text Transcription

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BCT3144 High Efficiency Synchronous Boost Converter With Dual Independent 1.5A Current Sources BCT3144 High Efficiency Synchronous Boost Converter With Dual Independent 1.5A Current Sources GENERAL DESCRIPTION The BCT3144 is a dual LED flash driver that provides a high level of adjustability within a small solution size. The BCT3144 utilizes a 2-MHz or 4-MHz fixed-frequency synchronous boost converter to provide power to the dual 1.5A constant current LED sources. The total LED current the BCT3144 boost can deliver is 1.5A (ILED1+ ILED2). The dual 128 level current sources provide the flexibility to adjust the current ratios between LED1 and LED2 with each driver capable of delivering a maximum of 1.5A.
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