19-1796; Rev 1; 1/03
KIT ATION EVALU E L B A AVAIL
Power Source Selector for Dual-Battery Systems
Features
o Patented† 7-
MOSFET Solution o Automatically Detects and Responds to: Low Battery
Voltage Condition Battery Insertion and Removal AC Adapter Presence o Direct Drive of P-Channel
MOSFETs o Simplifies Power Management µP Firmware o Extends Battery Life by Allowing Power Management µP to Enter Standby o 4.
75V to 28V AC Adapter Input
Voltage Range o Integrated LDO with 1mA Drive Capability o Small Footprint 20-Pin TSSOP Package Topology Offers Low-Cost
General Description
The MAX1773/MAX1773A highly integrated ICs serve as the control logic for a system with multiple power sources.
They...