U643 Overview
The bipolar integrated circuit U643B is used in relaycontrolled automotive flashers where a high-level EMC is required. Lamp outage is indicated by frequency doubling during hazard warning as well as direction mode.
| Part number | U643 |
|---|---|
| Datasheet | U643_ATMELCorporation.pdf |
| File Size | 57.77 KB |
| Manufacturer | Atmel (now Microchip Technology) |
| Description | Flasher/ 30-mohm Shunt |
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The bipolar integrated circuit U643B is used in relaycontrolled automotive flashers where a high-level EMC is required. Lamp outage is indicated by frequency doubling during hazard warning as well as direction mode.
| Brand Logo | Part Number | Description | Other Manufacturers |
|---|---|---|---|
| U6433B | Flasher/ 18-m Shunt/ Frequency Doubling Disabling | TEMIC Semiconductors |
See all Atmel (now Microchip Technology) datasheets
| Part Number | Description |
|---|---|
| U6432B | Low-power Flasher IC with 18-mOMShunt |
| U6433B | Frequency Doubling Disabling |
| U643B | Flasher IC |
| U641B | INTERVAL AND WIPE/WASH WIPER CONTROL IC |
| U642B | Interval- and Wipe/ Wash Wiper Control IC |