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MIC1832

Features: ` Power OK/Reset Time Delay, 250ms min.` Watchdog Timer, 150ms, 600ms, or 1.2s typical` Precision Supply Voltage Monitor, SelectBetween 5% or 10% of Supply Voltage` Available in 8-pin Surface Mount (SO)` Debounced External Reset Input` Low Supply Current, < 18A Typ.Application· Automo...

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SeekIC No. : 004420652 Detail

MIC1832: Features: ` Power OK/Reset Time Delay, 250ms min.` Watchdog Timer, 150ms, 600ms, or 1.2s typical` Precision Supply Voltage Monitor, SelectBetween 5% or 10% of Supply Voltage` Available in 8-pin Surf...

MIC1832 Data Sheet

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Part Number:
MIC1832
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/26

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Product Details

Description



Features:

` Power OK/Reset Time Delay, 250ms min.
` Watchdog Timer, 150ms, 600ms, or 1.2s typical
` Precision Supply Voltage Monitor, SelectBetween 5% or 10% of Supply Voltage
` Available in 8-pin Surface Mount (SO)
` Debounced External Reset Input
` Low Supply Current, < 18A Typ.




Application

· Automotive Systems
· Intelligent Instruments
· Critical Microprocessor Power Monitoring
· Battery Powered Computers
· Controllers




Pinout

Connection Diagram




Specifications

Terminal Voltage
VCC, . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7.0V
All Other Inputs . . . . . . . . . . . . -0.3V to (VCC + 0.3V)
Input Current
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250mA
Gnd, All Other Inputs . . . . . . . . . . . . . . . .. . . . 25mA
Operating Temperature Range
MIC1832_ . . . . . . . . . . . . . . . . . . . . -40°C to 85°C
Storage Temperature Range . . . . . . . .-65°C to 150°C
Lead Temperature (Soldering - 10 sec.) . . . . . . .. 300°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . 700mW




Description

The MIC1832 is a multifunction circuit which monitors microprocessor activity, external reset and power supplies in microprocessor based systems. The MIC1832 functions include a watchdog timer, power supply monitor, microprocessor reset, and manual pushbutton reset input.

The power supply line of MIC1832 is monitored with a comparator and an internal voltage reference. /RST is forced low when an out-of-tolerance condition exists and remains asserted for at least 250ms after VCC rises above the threshold voltage (2.55V or 2.88V). The /RST pin will remain logic low with VCC as low as 1.4V.

The Watchdog input (/ST) monitors µP activity and will assert /RST if no µP activity has occurred within the watchdog timeout period. The watchdog timeout period of MIC1832 is selectable with a nominal periods of 150, 600, or 1200 milliseconds.






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