LM3643AYFFR - Texas Instruments

Manufacturer Part Number

LM3643AYFFR

Manufacturer

Texas Instruments

Introduction

The LM3643AYFFR is a high-efficiency, dual-string LED driver IC designed for camera flash applications.

Product Features and Performance

Dual-string LED driver

Integrated high-side current regulation for each LED string

Programmable output current up to 1.9A per channel

Wide input voltage range of 2.5V to 5.5V

High efficiency up to 90%

Internal switch-mode DC-DC converter

4MHz switching frequency

Integrated LED dimming control

Thermal shutdown protection

Product Advantages

High efficiency for extended battery life

Compact size for space-constrained designs

Integrated features reduce external component count

Robust protection features for reliable operation

Key Technical Parameters

Manufacturer Part Number: LM3643AYFFR

Package: 12-UFBGA, DSBGA

Mounting Type: Surface Mount

Operating Temperature: -40°C to 85°C

Quality and Safety Features

RoHS3 compliant

Integrated thermal shutdown protection

Compatibility

The LM3643AYFFR is compatible with a wide range of camera and smartphone applications that require a high-efficiency LED driver for camera flash.

Application Areas

Camera flash

Smartphone camera flash

Product Lifecycle

The LM3643AYFFR is an active and available product from Texas Instruments. There are no immediate plans for discontinuation, and replacement or upgrade options may be available.

Key Reasons to Choose This Product

High efficiency for extended battery life

Compact size and integrated features for space-constrained designs

Robust protection features for reliable operation

Wide input voltage range and programmable output current for flexibility

Compatibility with a range of camera and smartphone applications