The AAT3526/7/8 PowerManager products are membersof AnalogicTech’s Total Power Manage ment IC? (TPMIC?)product family. These micro processor reset circuits are
ideal for monitoring voltage supplies in portable systems,where extended battery life is critical. They providea reliable, low-cost solution by eliminating externalcomponents. The AAT3526/7/8 products operate bymonitoring the system power supply voltage. When the
input voltage drops below a fixed threshold, the deviceasserts a reset signal for a minimum of 150ms after VCChas risen back above the fixed threshold. They are guaranteedto operate down to 1.2V and designed to ignorefast line transients appearing on VCC. The AAT3526/7/8
series is available with three output stage versions:AAT3526 push-pull active low output; AAT3527 push-pullactive high output; and AAT3528 open drain active lowoutput. The quiescent supply current is extremely low,typically 1μA, making this device ideal for portable battery-operated equipment.