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IMP802 - P POWER SUPPLY SUPERVISOR

General Description

Voltage supply for RAM.

When VCC is above the reset threshold, VOUT connects to VCC through a P-channel MOS device.

Key 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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Datasheet Details

Part number IMP802
Manufacturer IMP Inc
File Size 225.77 KB
Description P POWER SUPPLY SUPERVISOR
Datasheet download datasheet IMP802 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.