CAT824: Voltage Supervisor with Watchdog

Description: The CAT824 provides a basic reset and monitoring f...
  • The CAT824 provides a basic reset and monitoring function for the electronic systems. This device monitors the system voltage and maintains a reset output until that voltage reaches the device's specified trip value and then maintains the reset output active condition until the device's internal timer, after a minimum timer of 140ms; to allow the systems power supply to stabilize.

    The CAT824 also has a watchdog input which can be used to monitor a system signal and cause a reset to be issued if the signal fails to change state prior to a timeout condition.

    The CAT824 also provides a manual reset input which can be used to initiate reset if pulled low. This input can be directly attached to a push-button or a processor signal.
  • Features
  • Automatically Restarts Microprocessor after Power Failure
  • Monitors Pushbutton for External Override
  • Accurate Under Voltage System Monitoring
  • Brownout Detection System Reset for use with 3.0, 3.3, and 5.0 Volt Systems
  • Pin and Function Compatible with the MAX823/24/25 Products
  • Operating Range from -40°C to +85°C
  • Available in TSOT-23 5-lead and SC-70 Packages
  • These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant
  • Applications
  • Microprocessor and Microcontroller Based Systems
  • Intelligent Instruments
  • Control Systems
  • Critical μP Monitors
  • Portable Equipment
  • Technical Documentation & Design Resources
    Product Change Notification
    Availability and Samples
    CAT824LSDI-GT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: Voltage Supervisor with Watchdog
  • Package Type: SC-88A-5 / SC-70-5
  • Package Case Outline: 419AC
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT824LTDI-GT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: Voltage Supervisor with Watchdog
  • Package Type: TSOT-23-5
  • Package Case Outline: 419AE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT824MSDI-GT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: Voltage Supervisor with Watchdog
  • Package Type: SC-88A-5 / SC-70-5
  • Package Case Outline: 419AC
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT824MTDI-GT3
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Voltage Supervisor with Watchdog
  • Package Type: TSOT-23-5
  • Package Case Outline: 419AE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Mouser:>1K
  • ON Semiconductor:18,000
  • CAT824RSDI-GT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: Voltage Supervisor with Watchdog
  • Package Type: SC-88A-5 / SC-70-5
  • Package Case Outline: 419AC
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT824RTDI-GT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: Voltage Supervisor with Watchdog
  • Package Type: TSOT-23-5
  • Package Case Outline: 419AE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT824SSDI-GT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: Voltage Supervisor with Watchdog
  • Package Type: SC-88A-5 / SC-70-5
  • Package Case Outline: 419AC
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT824STDI-GT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: Voltage Supervisor with Watchdog
  • Package Type: TSOT-23-5
  • Package Case Outline: 419AE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT824TSDI-GT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: Voltage Supervisor with Watchdog
  • Package Type: SC-88A-5 / SC-70-5
  • Package Case Outline: 419AC
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT824TTDI-GT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: Voltage Supervisor with Watchdog
  • Package Type: TSOT-23-5
  • Package Case Outline: 419AE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT824YSDI-GT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: Voltage Supervisor with Watchdog
  • Package Type: SC-88A-5 / SC-70-5
  • Package Case Outline: 419AC
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT824YTDI-GT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: Voltage Supervisor with Watchdog
  • Package Type: TSOT-23-5
  • Package Case Outline: 419AE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT824ZSDI-GT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: Voltage Supervisor with Watchdog
  • Package Type: SC-88A-5 / SC-70-5
  • Package Case Outline: 419AC
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • CAT824ZTDI-GT3
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: Voltage Supervisor with Watchdog
  • Package Type: TSOT-23-5
  • Package Case Outline: 419AE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Specifications
  • Voltages Monitored:
  • VCC Max (V): 5.5 
  • V(TO) Typ (V): 4.38 
  • IQ Typ (µA):
  • Reset Active State: Low  High 
  • Reset Timer: Yes 
  • Manual Reset: No 
  • Watchdog Timer: Yes 
  • Package Type: TSOT-23-5 
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