TLE7232G datasheet(5/36 Pages) INFINEON

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SPI Driver for Enhanced Relay Control

SPIDER - TLE 7232G

Overview

Data Sheet

V1.0, 2005-09-30

1Overview

The SPIDER - TLE 7232G is an eight channel low-side relay switch (1.2

Ω per channel)

in P-DSO-24-3 package providing embedded protective functions. The 16 bit serial

peripheral interface (SPI) is utilized for control and diagnosis of the device and the loads.

The SPI interface provides daisy-chain capability in order to assemble multiple devices

in one SPI chain by using the same number of micro-controller pins.

The SPIDER - TLE 7232G is equipped with one input pin that can be individually routed

to the output control of each channel thus offering complete flexibility in design and PCB-

layout. The input mapping as well as the boolean operation between input signal an

output control signal is configured via SPI.

The device provides full diagnosis of the load, which is open load, short to GND as well

as short circuit to

bat detection and over load / over temperature indication. The SPI

diagnosis flags indicate latched fault conditions that may have occurred.

Each output stage is protected against short circuit. In case of over load, the current of

the affected channel is limited. There is a temperature sensor available for each channel

to protect the device in case of over temperature. The shut down behavior in case of over

load or over temperature can be configured via SPI for each channel individually.

1.1

Block Diagram

Figure 1

Block Diagram

Overview .emf

SCLK

SPI

control,

diagnostic

and

protective

functions

open load

detection

temperature

sensor

gate

control

short circuit

detection

GND

RST

VDD

OUT7

OUT6

OUT5

OUT4

OUT3

OUT2

OUT1

OUT0

hardware

configuration

output monitor

boolean operation

input map

output control

diagnosis register

VSO

reset / stand-by

TLE7232G Datasheet(PDF) 5 Page - Infineon Technologies AG

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