ATA6809

更新时间： 2024-11-29 03:19:39

品牌	Logo	应用领域
爱特美尔 - ATMEL		驱动器继电器
页数	文件大小	规格书
16页	318K
描述
Fail-safe IC with Relay Driver and Lamp Driver

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ATA6809 数据手册

Features

•

Digital Self-supervising Watchdog with Hysteresis

Three 250-mA Output Drivers

One Relay Driver, Two Lamp Drivers

Lamp Drivers With Auxiliary Ground

Short-circuit-protected Lamp Drivers

Lamp Drivers With Status Feedback

Fail-safe IC with

Relay Driver

and Lamp

Enable Output

Overvoltage/Undervoltage Detection and Reset

All Power Outputs Protected Against Standard Transients

All Power Outputs Protected Against 40V Load Dump

Lamp Drivers Automatically Activated if V_Sis Disconnected

Lamp Drivers Automatically Activated Via AUX GND if Standard

Ground is Disconnected

Driver

1. Description

ATA6809

The ATA6809 is designed to support the fail-safe function of safety-critical systems

such as ABS. It includes a relay driver, two independent short-circuit-protected lamp

drivers which are supplied by redundant ground lines, two monitoring circuits for the

lamp driver output voltage and output current, a watchdog controlled by an external

RC network, and a reset circuit initiated by an overvoltage or undervoltage condition

of the 5V supply providing a positive and a negative reset signal.

Rev. 4902A–AUTO–11/05

12 3 4 5 6 7...16

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