S-8426A Series
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BATTERY BACKUP SWITCHING IC
Rev.
2.
0_03
The S-8426A Series is a CMOS IC designed for use in the switching circuits of primary and backup power supplies on a single chip.
It consists of two voltage
regulators, three voltage detectors, a power supply switch and its controller, as well as other functions.
In addition to the switching function between the primary and backup power supply, the S-8426A Series can provide the micro controllers with three types of voltage detection output signals corresponding to the power supply voltage.
Moreover adopting a special sequence for switch control enables the effective use of the backup power supp...