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CAT824: Voltage Supervisor with Watchdog

Datasheet: System Supervisory Voltage Reset with Watchdog and Manual Reset
Rev. 8 (131.0kB)
Product Overview
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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
Data Sheets (1) Package Drawings (1)
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
CAT824MTDI-GT3 Active
Pb-free
Halide free
CAT824 TSOT-23-5 419AE 1 260 Tape and Reel 3000 $0.2548
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 18,000

Product
Description
Pricing ($/Unit)
Compliance
Status
Voltages Monitored
VCC Max (V)
V(TO) Typ (V)
IQ Typ (µA)
Reset Active State
Reset Timer
Manual Reset
Watchdog Timer
Package Type
CAT824MTDI-GT3  
 $0.2548 
Pb
H
 Active   
1
5.5
4.38
6
High
Low
Yes
No
Yes
TSOT-23-5
Case Outlines
419AE   
Previously Viewed Products
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