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IMP690A

IMP Inc
Part Number IMP690A
Manufacturer IMP Inc
Description P POWER SUPPLY SUPERVISOR WITH BATTERY BACKUP SWITCH
Published Apr 5, 2005
Detailed Description IMP690A , 692A , 802L/M, 805L POWER MANAGEMENT µP Power Supply Supervisor with Battery Backup Switch The IMP690A/IMP692...
Datasheet PDF File IMP690A PDF File

IMP690A
IMP690A

Overview
IMP690A , 692A , 802L/M, 805L POWER MANAGEMENT µP Power Supply Supervisor with Battery Backup Switch The IMP690A/IMP692A/IMP802L/IMP802M/IMP805L simplify power supply monitoring and control in microprocessor systems.
Each circuit implements four functions: Reset control, watchdog monitoring, batterybackup switching and power-failure monitoring.
In addition to microprocessor reset under powerup and power-down conditions, these devices provide battery-backup switching to maintain control in powerloss and brown-out situations.
Additional monitoring capabilities can provide an early warning of unregulated power-supply loss before the voltage regulator drops out.
The important features of these four functions are: a) 1.
6 second watchdog timer to keep microprocessor responsive b) c) 4.
40V or 4.
65V VCC threshold for microprocessor reset at power-up and power-down SPDT (single-pole, double-throw) PMOS switch connects backup power to RAM if VCC fails Key Features x Design improvement over Max...


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