CPU Supervisor IC Switches In Batteries

The latest addition to the firm’s lineup of microprocessor supervisory circuits is the SP690T/S/R and SP805T/S/R series of 3V/3.3V devices. They integrate the key components used in power supply and battery voltage monitoring systems. Functions include a precision voltage monitor, watchdog timer, µP reset, backup-battery switchover and power-failure warnings, all in a single, monolithic device.Features include maximum operating supply current of 40 µA and 1 µA maximum battery supply current, making the circuits well suited for power-sensitive applications. Reset time delay is 200 ms. The devices are offered in 8-pin DIPs and narrow SOICs.