A8431EEHTR-T - Allegro MicroSystems

Manufacturer Part Number

A8431EEHTR-T

Manufacturer

Allegro Microsystems

Introduction

The A8431 is a high-efficiency, high-voltage, step-up (boost) DC-DC regulator designed for driving high-power LEDs in backlight applications. It features a wide input voltage range, high output voltage, and high switching frequency, making it well-suited for portable and space-constrained applications.

Product Features and Performance

Wide input voltage range of 2.5V to 10V

High output voltage up to 32V

Output current up to 20mA per channel

High switching frequency of 1.2MHz

PWM dimming control

Internal power switch

Single output

Product Advantages

High efficiency for extended battery life

Small solution size for compact designs

High switching frequency enables use of small, low-cost external components

PWM dimming for adjustable brightness control

Key Reasons to Choose This Product

Optimized for driving high-power LED backlight applications

Compact and power-efficient design

Wide input voltage range suitable for various portable devices

Reliable and robust performance

Quality and Safety Features

Operates over a wide temperature range of -40°C to 85°C

Integrated overcurrent and thermal protection

Compatibility

The A8431 is designed for use in a variety of backlight applications, including LCD panels, OLED displays, and other lighting solutions.

Application Areas

Smartphone and tablet backlight

Laptop and notebook computer backlight

Portable device backlight

General LED lighting applications

Product Lifecycle

The A8431 is an obsolete product, meaning it is no longer in active production. However, there may be equivalent or alternative models available from Allegro Microsystems or other manufacturers. Customers are advised to contact our website's sales team for more information on suitable replacement options.