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The TEMIC U2043B is an integrated circuit designed for use in relay-controlled automotive flashers, supporting both hazard and direction modes. It features a high EMC level, temperature and voltage compensated frequency, and indicates lamp outage by doubling the flashing frequency.
The device includes a shunt resistor of 30 mΩ and allows the pilot lamp to be connected either to Vga or GND. Key electrical characteristics include a supply voltage range of 9V to 15V, a minimum lamp load of 10W for operation, and specific oscillator frequency tolerances.
| Supply voltage range | 9 to 15 V |
|---|---|
| Minimum lamp load for flasher operation | 10 W |
| Shunt resistor value | 30 mΩ |
| Ambient temperature range | -40 to +95 °C |
| Junction temperature maximum | 150 °C |
The minimum lamp load required for flasher operation is 10 W.
A lamp outage is indicated by frequency doubling during the flashing cycle.