U6808B ic equivalent, specia fail-safe ic.
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Digital Self-supervising Watchdog with Hysteresis One 250-mA Output Driver for Relay Enable Output Open Collector 8 mA Over/Undervoltage Det.
The U6808B is designed to support the fail-safe function of a safety critical system (e.g., ABS). It includes a relay driver, a watchdog controlled by an external R/C-network and a reset circuit initiated by an over and undervoltage condition of the .
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