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CAT824: Voltage Supervisor with Watchdog

Overview
Specifications
Datasheet: System Supervisory Voltage Reset with Watchdog and Manual Reset
Rev. 8 (131.0kB)
»View Material Composition
»Product Change Notification (5)
Product Overview
Product Description
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 (2)
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
CAT824LSDI-GT3 Last Shipments
Pb-free
Halide free
Voltage Supervisor with Watchdog SC-88A-5 / SC-70-5 419AC 1 Tape and Reel 3000  
CAT824LTDI-GT3 Lifetime
Pb-free
Halide free
Voltage Supervisor with Watchdog TSOT-23-5 419AE 1 Tape and Reel 3000  
CAT824MSDI-GT3 Lifetime
Pb-free
Halide free
Voltage Supervisor with Watchdog SC-88A-5 / SC-70-5 419AC 1 Tape and Reel 3000  
CAT824MTDI-GT3 Active
Pb-free
Halide free
Voltage Supervisor with Watchdog TSOT-23-5 419AE 1 Tape and Reel 3000 $0.2933
CAT824RSDI-GT3 Last Shipments
Pb-free
Halide free
Voltage Supervisor with Watchdog SC-88A-5 / SC-70-5 419AC 1 Tape and Reel 3000  
CAT824RTDI-GT3 Lifetime
Pb-free
Halide free
Voltage Supervisor with Watchdog TSOT-23-5 419AE 1 Tape and Reel 3000  
CAT824SSDI-GT3 Lifetime
Pb-free
Halide free
Voltage Supervisor with Watchdog SC-88A-5 / SC-70-5 419AC 1 Tape and Reel 3000  
CAT824STDI-GT3 Lifetime
Pb-free
Halide free
Voltage Supervisor with Watchdog TSOT-23-5 419AE 1 Tape and Reel 3000  
CAT824TSDI-GT3 Lifetime
Pb-free
Halide free
Voltage Supervisor with Watchdog SC-88A-5 / SC-70-5 419AC 1 Tape and Reel 3000  
CAT824TTDI-GT3 Lifetime
Pb-free
Halide free
Voltage Supervisor with Watchdog TSOT-23-5 419AE 1 Tape and Reel 3000  
CAT824YSDI-GT3 Lifetime
Pb-free
Halide free
Voltage Supervisor with Watchdog SC-88A-5 / SC-70-5 419AC 1 Tape and Reel 3000  
CAT824YTDI-GT3 Lifetime
Pb-free
Halide free
Voltage Supervisor with Watchdog TSOT-23-5 419AE 1 Tape and Reel 3000  
CAT824ZSDI-GT3 Lifetime
Pb-free
Halide free
Voltage Supervisor with Watchdog SC-88A-5 / SC-70-5 419AC 1 Tape and Reel 3000  
CAT824ZTDI-GT3 Lifetime
Pb-free
Halide free
Voltage Supervisor with Watchdog TSOT-23-5 419AE 1 Tape and Reel 3000  
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2015-07-08) : 6,000
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2015-07-08) : 18,000
Market Leadtime (weeks) : Contact Factory
Arrow   (Sat Jul 11 07:39:44 MST 2015) : 21804
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2015-07-08) : 9,000
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Mouser   (2015-07-09) : >1K
ON Semiconductor   (2015-07-08) : 9,000
PandS   (2015-07-09) : >1K
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2015-07-08) : 30,000
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2015-07-08) : 3,000
PandS   (2015-07-09) : >1K
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2015-07-08) : 27,000
Market Leadtime (weeks) : Contact Factory
PandS   (2015-07-09) : >1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Datasheet: System Supervisory Voltage Reset with Watchdog and Manual Reset
Rev. 8 (131.0kB)
»View Material Composition
»Product Change Notification (5)
Product Overview

Product Compliance Status Description Voltages Monitored VCC Max (V) V(TO) Typ (V) IQ Typ (µA) Reset Active State Reset Timer Manual Reset Watchdog Timer Package Type
 Pb-free 
 Halide free 
 Active     Voltage Supervisor with Watchdog   1   5.5   4.38   6 
 High 
 Low 
 Yes   No   Yes   TSOT-23-5 
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