A8603KESTR-R datasheet(2/42 Pages) ALLEGRO

2 / 42 page

Multiple-Output Regulator for

Automotive LCD Displays

A8603

Allegro MicroSystems, LLC

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

Table 1: Selection Guide

Part Number

Package

Packing*

Pin Soldering

A8603KESTR-R

24-pin 4×4 QFN with exposed thermal pad

1500 pieces per 13-in. reel

Sidewall Plating

A8603KESTR-J

24-pin 4×4 QFN with exposed thermal pad

Contact Factory

Wettable Flank

*Contact Allegro™ for additional packing options.

Specifications

Absolute Maximum Ratings

Thermal Characteristics

Pinout Diagrams and Terminal List Table

Functional Block Diagram

Electrical Characteristics

Characteristic Performance

Functional Description

Program Diagnostics

Programmable Registers

I2C Register Map

Diagnostic Registers

Real-Time Status Registers

Latched Status Registers

Description of Regulators

AVDD Regulator

VCOM Regulator

VGL/VGH Charge Pumps

Boost Controller

Boost Switching Frequency

Boost Frequency Dithering

Fault Conditions

Over- and Undervoltage Protections

Overcurrent Protection

Examples of Various Fault Conditions

Pre-Output Fault Detection

General Fault Detection

Fault Monitoring

Fault1 (Group1)

Fault2 (Group2)

Fault3 (Group3)

Thermal Analysis

Boost Stage Power Loss

Output Regulator Power Loss

Package Outline Drawing

Table of Contents

A8603KESTR-R Fiches technique(PDF) 2 Page - Allegro MicroSystems

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