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High-voltage watchdog timers enhance automotive system safety

Posted: 05 Jul 2010     Print Version  Bookmark and Share

Keywords:watchdog timers  automotive safety  supervisory circuits 

Most automotive electronic systems need supervisory circuits to provide the required level of failure tolerance and safety. The MAX16997/MAX16998 watchdog timers are ideal for use in these circuits as supervisory devices, as they watch for program-generated pulses produced during normal operation of the microcontroller (µC) and switch to backup/redundant circuitry in case of an electrical or µC failure. This provides the limp-home functionality required for an automobile to be fail-safe and be serviced without experiencing a hard stoppage.

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