Texas Instruments has introduced a new family of quad supply voltage supervisors with programmable delay and watchdog timer. The TPS386000, TPS386020, TPS386040 and TPS386060 supervisors can monitor four power rails that are greater than 0,4 V with a threshold accuracy of 0,25%. The TPS386000 family of devices offer an independent programmable delay input for each supervisor channel, which can be set from 1,25 ms to 10 seconds for power supply sequencing. The devices operate with a very low quiescent current of 12 μA, which can help minimise system power consumption. A window comparator on the fourth supervisor can be used for over-voltage and under-voltage detection or as a fifth supervisor for monitoring a negative voltage. The supervisors are designed for applications such as telecom infrastructure, networking, server/storage, industrial and analog sequencing applications.
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