Description

The integrated circuit U2043B is used in relay controlled automotive flashers where a high EMC level is required.

A lamp outage is indicated by frequency doubling during hazard mode as well as direction mode. Pilot lamp can be connected either to VBatt or GND.

Features

Temperature and voltage compensated frequency 

Warning indication of lamp failure by means of frequency doubling

Minimum lamp load for flasher operation
10 W

Relay output with high current carrying capacity and low saturation voltage

Low susceptibility to EMI