ATA6661_08 Datasheet, PDF (1/9 Pages) ATMEL Corporation – LIN Transceiver

Features
• Temperature and Supply Voltage Compensated Flashing Frequency
• Frequency Doubling Indicates Lamp Outage
• Relay Driver Output with High Current Carrying Capacity and Low Saturation Voltage
• Minimum Lamp Load for Flasher Operation: ≥ 1W
• Very Low Susceptibility to EMI
• Protection According to ISO/TR 7637/1 Level 4
Flasher IC with
30-mΩ Shunt
1. Description
The bipolar integrated circuit U643B is used in relay-controlled automotive flashers
where a high-level EMC is required.
Lamp outage is indicated by frequency doubling during hazard warning as well as
direction mode.
U643B
Rev. 4727B–AUTO–09/05