ATA6839 ATMEL Corporation, ATA6839 Datasheet

ATA6839

Manufacturer Part Number

ATA6839

Description

High Temperature Hex Half-bridge Driver

Manufacturer

ATMEL Corporation

Datasheet

1.ATA6839.pdf (18 pages)

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Features

•

1. Description

The ATA6839 is designed for high-temperature applications. In mechatronic solutions,

for example, turbo charger or exhaust gas recirculation systems, many flaps have to

be controlled by DC motor driver ICs which are located very close to the hot engine or

actuator and where ambient temperatures up to 150°C are usual. Due to the advan-

tages of SOI technology, junction temperatures up to 200°C are allowed. This enables

new cost-effective board design possibilities to achieve complex mechatronic

solutions.

The ATA6839 is a fully protected hex half-bridge driver, used to control up to 6 differ-

ent loads by a microcontroller in automotive and industrial applications.

Each of the six high-side and six low-side drivers is capable of driving currents up to

1A. The drivers are internally connected to form 6 half-bridges and can be controlled

separately from a standard serial data interface. Therefore, all kinds of loads, such as

bulbs, resistors, capacitors and inductors, can be combined. The IC especially sup-

ports the application of H-bridges to drive DC motors.

Protection is guaranteed in terms of short-circuit conditions, overtemperature and

undervoltage. Various diagnosis functions and a very low quiescent current in standby

mode make a wide range of applications possible.

Automotive qualification referring to conducted interferences, EMC protection and

ESD protection gives added value and enhanced quality for the exacting requirements

of automotive applications.

Six Half-bridge Outputs Formed by Six High-side and Six Low-side Drivers

Capable of Switching all Kinds of Loads (Such as DC Motors, Bulbs, Resistors,

Capacitors and Inductors)

Up to 1A Output Current

Outputs Short-circuit Protected

Overtemperature Prewarning and Protection

Undervoltage Protection

Various Diagnosis Functions Such as Shorted Output, Open Load, Overtemperature

and Power Supply Fail

Serial Data Interface

Operation Voltage up to 40V

Daisy Chaining Possible

Serial Interface 5V Compatible, up to 2 MHz Clock Frequency

QFN24 Package

DSon

Typically 1.0 at 25°C, Maximum 2.2 at 200°C

High

Temperature

Hex Half-bridge

Driver with

Serial Input

Control

ATA6839

Preliminary

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4955D–AUTO–10/08

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