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CAT823: Voltage Supervisor with Manual Reset and Watchdog

Datasheet: System Supervisory Voltage Reset with Watchdog and Manual Reset
Rev. 8 (135.0kB)
Product Overview
»View Reliability Data
»View Material Composition
» Product Change Notification
The CAT823, CAT824, and CAT825 provide basic reset and monitoring functions for the electronic systems. Each 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 140 ms; to allow the systems power supply to stabilize.

The CAT823 and CAT824 also have 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 CAT823 and CAT825 also provide 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 Eexternal 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.
CAT823RTDI-GT3 Active
Pb-free
Halide free
CAT823 TSOT-23-5 419AE 1 260 Tape and Reel 3000 $0.2933
CAT823STDI-GT3 Active
Pb-free
Halide free
CAT823 TSOT-23-5 419AE 1 260 Tape and Reel 3000 $0.2933
CAT823TTDI-GT3 Active
Pb-free
Halide free
CAT823 TSOT-23-5 419AE 1 260 Tape and Reel 3000 $0.2933
CAT823YTDI-GT3 Active
Pb-free
Halide free
CAT823 TSOT-23-5 419AE 1 260 Tape and Reel 3000 $0.2933
CAT823ZTDI-GT3 Active
Pb-free
Halide free
CAT823 TSOT-23-5 419AE 1 260 Tape and Reel 3000 $0.2933
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2020-09-02 00:00) : 54,000
PandS   (2020-09-14 00:00) : <100
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 12,000
PandS   (2020-09-14 00:00) : >1K
Market Leadtime (weeks) : 4 to 8
PandS   (2020-09-14 00:00) : >1K

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
CAT823RTDI-GT3  
 $0.2933 
Pb
H
 Active   
1
5.5
2.63
6
Low
Yes
Yes
Yes
TSOT-23-5
CAT823STDI-GT3  
 $0.2933 
Pb
H
 Active   
1
5.5
2.93
6
Low
Yes
Yes
Yes
TSOT-23-5
CAT823TTDI-GT3  
 $0.2933 
Pb
H
 Active   
1
5.5
3.08
6
Low
Yes
Yes
Yes
TSOT-23-5
CAT823YTDI-GT3  
 $0.2933 
Pb
H
 Active   
1
5.5
2.19
6
Low
Yes
Yes
Yes
TSOT-23-5
CAT823ZTDI-GT3  
 $0.2933 
Pb
H
 Active   
1
5.5
2.32
6
Low
Yes
Yes
Yes
TSOT-23-5
Case Outlines
419AE   
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