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MFG:MAX  Package Cooled:SOP-8  D/C:05  

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Part Number: MAX690S

 

MFG: MAX

Package Cooled: SOP-8

D/C: 05

Description: These microprocessor (µP) supervisory circuits reduce the complexity and number of components re...


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MAX690S General Description


These microprocessor (µP) supervisory circuits reduce the complexity and number of components required for power-supply monitoring and battery control functions in µP systems.  They significantly improve system reliability and accuracy compared to separate ICs or discrete components.

These devices are designed for use in systems powered by 3.0V or 3.3V supplies.  See the selector guide in the back of this data sheet for similar devices designed for 5V systems.  The suffixes denote different reset threshold voltages: 3.075V (T), 2.925V (S), and 2.625V (R) (see Reset Threshold section in the Detailed Description).  All these parts are available in 8-pin DIP and SO packages.

MAX690S 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

MAX690S 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

MAX690S Typical Application

Battery-Powered Computers and Controllers
Embedded Controllers
Intelligent Instruments
Automotive Systems
Critical µP Power Monitoring
Portable Equipment

MAX690S datasheet

MAX690S
PDF/DataSheet Download

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