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MFG:MAX D/C:9504
Part Number: MAX707
MFG: MAX
D/C: 9504
Description: The MAX705-MAX708/MAX813L microprocessor (µP) supervisory circuits reduce the complexity and num...
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MAX707
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DataSheet
General Description
MAX707 General Description
The MAX705-MAX708/MAX813L microprocessor (µP) supervisory circuits reduce the complexity and number of components required to monitor power-supply and battery functions in µP systems. These devices signifi-cantly improve system reliability and accuracy com-pared to separate ICs or discrete components.
The MAX705/MAX706/MAX813L provide four functions:
1) A reset output during power-up, power-down, and brownout conditions.
2) An independent watchdog output that goes low if the watchdog input has not been toggled within 1.6 seconds.
3) A 1.25V threshold detector for power-fail warning,low-battery detection, or for monitoring a power sup-ply other than +5V.
4) An active-low manual-reset input.
The MAX707/MAX708 are the same as the MAX705/ MAX706, except an active-high reset is substituted for the watchdog timer. The MAX813L is the same as the MAX705, except RESET is provided instead of RESET.
Two supply-voltage monitor levels are available: The MAX705/MAX707/MAX813L generate a reset pulse when the supply voltage drops below 4.65V, while the MAX706/MAX708 generate a reset pulse below 4.40V. All four parts are available in 8-pin DIP, SO and µMAX packages.
MAX707 Maximum Ratings
Terminal Voltage (with respect to GND)
VCC ............................................................. -0.3V to 6.0V
All Other Inputs (Note 1) ................ -0.3V to (VCC + 0.3V)
Input Current
VCC .......................................................................... 20mA
GND .......................................................................... 20mA
Output Current (all outputs) ....................................... 20mA
Continuous Power Dissipation
Plastic DIP (derate 9.09mW/°C above +70°C) ...... 727mW
SO (derate 5.88mW/°C above +70°C) .................. 471mW
µMAX (derate 4.10mW/°C above +70°C) .............. 330mW
CERDIP (derate 8.00mW/°C above +70°C) ............640mW
Operating Temperature Ranges
MAX70_C__, MAX813LC__ ........................... 0°C to +70°C
MAX70_E__, MAX813LE__ ........................ -40°C to +85°C
MAX70_MJA ............................................ -55°C to +125°C
Storage Temperature Range ..................... -65°C to +160°C
Lead Temperature (soldering, 10sec) ................ ......+300°C
VCC ............................................................. -0.3V to 6.0V
All Other Inputs (Note 1) ................ -0.3V to (VCC + 0.3V)
Input Current
VCC .......................................................................... 20mA
GND .......................................................................... 20mA
Output Current (all outputs) ....................................... 20mA
Continuous Power Dissipation
Plastic DIP (derate 9.09mW/°C above +70°C) ...... 727mW
SO (derate 5.88mW/°C above +70°C) .................. 471mW
µMAX (derate 4.10mW/°C above +70°C) .............. 330mW
CERDIP (derate 8.00mW/°C above +70°C) ............640mW
Operating Temperature Ranges
MAX70_C__, MAX813LC__ ........................... 0°C to +70°C
MAX70_E__, MAX813LE__ ........................ -40°C to +85°C
MAX70_MJA ............................................ -55°C to +125°C
Storage Temperature Range ..................... -65°C to +160°C
Lead Temperature (soldering, 10sec) ................ ......+300°C
MAX707 Features
µMAX Package: Smallest 8-Pin SO
Guaranteed RESET Valid at VCC = 1V
Precision Supply-Voltage Monitor
4.65V in MAX705/MAX707/MAX813L
4.40V in MAX706/MAX708
200ms Reset Pulse Width
Debounced TTL/CMOS-Compatible Manual-Reset Input
Independent Watchdog Timer-1.6sec Timeout (MAX705/MAX706)
Active-High Reset Output (MAX707/MAX708/MAX813L)
Voltage Monitor for Power-Fail or Low-Battery Warning
Guaranteed RESET Valid at VCC = 1V
Precision Supply-Voltage Monitor
4.65V in MAX705/MAX707/MAX813L
4.40V in MAX706/MAX708
200ms Reset Pulse Width
Debounced TTL/CMOS-Compatible Manual-Reset Input
Independent Watchdog Timer-1.6sec Timeout (MAX705/MAX706)
Active-High Reset Output (MAX707/MAX708/MAX813L)
Voltage Monitor for Power-Fail or Low-Battery Warning
MAX707 Typical Application
Computers
Controllers
Intelligent Instruments
Automotive Systems
Critical µP Power Monitoring
Controllers
Intelligent Instruments
Automotive Systems
Critical µP Power Monitoring
MAX707
PDF/DataSheet Download
- Datasheet: MAX707
- File Size: 102376 KB
- Manufacturer: MAXIM [Maxim Integrated Products]
- Click here to Download
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