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. The 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 ≥10W
• Relay Output with High Current Carrying Capacity and Low Saturation Voltage
• Low Susceptibility to EMI