
Maxim Integrated
General Description
The MAX690A/MAX692A/MAX802L/MAX802M/MAX805L reduce the complexity and number of components required for power-supply monitoring and battery-control functions in microprocessor (μP) systems. They significantly improve system reliability and accuracy compared to separate ICs or discrete components.
FEATUREs
● Precision Supply Voltage Monitor:
4.65V for MAX690A/MAX802L/MAX805L
4.40V for MAX692A/MAX802M
● Reset Time Delay: 200ms
● Watchdog Timer: 1.6s Timeout
● Battery-Backup Power Switching
● 200μA Quiescent Supply Current
● 50nA Quiescent Supply Current in BatteryBackup Mode
● Voltage Monitor for Power-Fail or Low-Battery Warning
● Power-Fail Accuracy Guaranteed to ±2% (MAX802L/M)
● Guaranteed RESET Assertion to VCC = 1V
● 8-Pin SO and DIP Packages
APPLICATIONs
● Battery-Powered Computers and Controllers
● Intelligent Instruments
● Critical μP Power Monitoring