Data Sheet

13

Rev. 2.5, 2010-10-11

TLE6288R

Description

4.2

Protection

overtemperature, ESD at all pins and overvoltage at the power outputs (zener clamping).

Overtemperature Behavior

Each channel has an overtemperature sensor and is individually protected against overtemperature.

As soon as overtemperature occurs the channel is immediately turned off. In this case there are two different

behaviors of the affected channel that can be selected by SPI (for all channels generally):

Autorestart: as long as the input signals of the channel remains on (e.g. parallel input high) the channel turns

automatically on again after cooling down.

Latching: After overtemperature shutdown the channel stays off until the this overtemperature latch is reset by a

new L

→ H transition of the input signal.

Note: These overtemperature sensors of the channels are only active if the channel is turned on.

An additional overtemperature sensor is located in the logic of the device. It monitors permanently the IC

temperature. As soon as the IC temperature reaches a specified level an overtemperature fault will be indicated.

1) Integrated protection functions are designed to prevent IC destruction under fault conditions described in the data sheet.

Fault conditions are considered as “outside” normal operating range. Protection functions are not designed for continuous

repetitive operation.