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SP802T

Sipex
Part Number SP802T
Manufacturer Sipex
Description 3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over
Published Jun 7, 2005
Detailed Description ® SP690T/S/R, SP802T/S/R, SP804T/S/R, and SP805T/S/R 3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch...
Datasheet PDF File SP802T PDF File

SP802T
SP802T

Overview
® SP690T/S/R, SP802T/S/R, SP804T/S/R, and SP805T/S/R 3.
0V/3.
3V Low Power Microprocessor Supervisory with Battery Switch-Over s RESET and RESET Outputs s Reset asserted down to VCC = 1V s Reset Time Delay - 200ms s Watchdog Timer - 1.
6 sec timeout s 40µA Maximum VCC Supply Current s 1µA Maximum Battery Supply Current s Power Switching 50mA Output in VCC Mode (1.
5Ω) 10mA Output in Battery Mode (15Ω) s Battery Can Exceed VCC in Normal Operation s Precision Voltage Monitor for Power-Fail or Low-Battery Warning s Available in 8 pin SO and DIP packages s Pin Compatible Upgrades to MAX690T/S/R, MAX802T/S/R, MAX804T/S/R, MAX805T/S/R DESCRIPTION The SP690T/S/R, SP802T/S/R, SP804T/S/R and SP805T/S/R devices are a family of microprocessor (µP) supervisory circuits that integrate a myriad of components involved in discrete solutions to monitor power-supply and battery-control functions in µP and digital systems.
The series will significantly improve system reliability and operational efficiency when compared to discrete solutions.
The features of the SP690T/S/R, SP802T/S/R, SP804T/S/R and SP805T/S/R devices include a watchdog timer, a µP reset and backupbattery switchover, and power-failure warning; a complete µP monitoring and watchdog solution.
The series is ideal for 3.
0V or 3.
3V applications in portable electronics, computers, controllers, and intelligent instruments and is a solid match for designs where it is critical to monitor the power supply to the µP and it’s related digital components.
Refer to Sipex's SP690A/692A/802L/802M/805L/805M series for similar devices designed for +5V systems.
Part Number SP690T/805T SP802T/804T SP690S/805S SP802S/804S SP690R/805R SP802R/804R RESET Active LOW/HIGH LOW/HIGH LOW/HIGH LOW/HIGH LOW/HIGH LOW/HIGH RESET Threshold 3.
075V 3.
075V 2.
925V 2.
925V 2.
625V 2.
625V RESET Accuracy ±75mV ±60mV ±75mV ±60mV ±75mV ±60mV PFI Accuracy ±4% ±2% ±4% ±2% ±4% ±2% Watchdog Input YES YES YES YES YES YES Backup-Battery Switch YES YES YES YES YES YES SP...


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