MAX690R General Description
MAX690R Maximum Ratings
Terminal Voltage (with respect to GND)
VCC...................................................................-0.3V to 6.0V
VBATT................................................................-0.3V to 6.0V
All Other Inputs ................-0.3V to the higher of VCC or VBATT
All Other Inputs ................-0.3V to the higher of VCC or VBATT
Continuous Input Current
VCC............................................................................100mA
VBATT ..........................................................................18mA
GND..............................................................................18mA
Output Current
RESET PFO....................................................................18mA
VOUT ..............................................................................100mA
MAX690R Features
RESET and RESET Outputs
Manual Reset Input
Precision Supply-Voltage Monitor
200ms Reset Time Delay
Watchdog Timer (1.6sec timeout)
Battery-Backup Power Switching-Battery Can Exceed VCC in Normal Operation
40µA VCC Supply Current
1µA Battery Supply Current
Voltage Monitor for Power-Fail or Low-Battery Warning
Guaranteed RESET Assertion to VCC = 1V
8-Pin DIP and SO Packages
MAX690R Typical Application
Battery-Powered Computers and Controllers
Embedded Controllers
Intelligent Instruments
Automotive Systems
Critical µP Power Monitoring
Portable Equipment
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