IMP690A - P POWER SUPPLY SUPERVISOR WITH BATTERY BACKUP SWITCH

IMP Inc

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Datasheet Details

Part number	IMP690A
Manufacturer	IMP Inc
File Size	225.77 KB
Description	P POWER SUPPLY SUPERVISOR WITH BATTERY BACKUP SWITCH
Datasheet	IMP690A_IMPInc.pdf

IMP690A Product details

Description

Pin Number IMP690A/IMP692A IMP802L/IMP802M 1 IMP805L 1 Name VOUT Function Voltage supply for RAM.When VCC is above the reset threshold, VOUT connects to VCC through a P-channel MOS device.If VCC falls below the reset threshold, this output will be connected to the backup supply at VBATT (or VCC, whichever is higher) through the MOS switch to provide continuous power to the CMOS RAM.+5V power supply input Ground Power failure monitor input.PFI is connected to the internal power fail compar

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 Maxim MAX690A/692A/802L/802M/805L.
70% lower current than Maxim: 100µA maximum.
RESET Operation to 1.1V x Two precision supply-voltage monitor options.
4.65V (IMP690A/.

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Published: Apr 5, 2005 |