TLE42994

Application Information

Data Sheet

31

Rev. 1.2, 2014-07-03

6.4

Reverse Polarity Protection

TLE42994 is self protected against reverse polarity faults and allows negative supply voltage. External reverse

polarity diode is not needed. However, the absolute maximum ratings of the device as specified in “Absolute

Maximum Ratings” on Page 11 must be kept.

The reverse voltage causes several small currents to flow into the IC hence increasing its junction temperature.

As the thermal shut down circuitry does not work in the reverse polarity condition, designers have to consider this

in their thermal design.