CAT823: Voltage Supervisor with Manual Reset and Watchdog
Description: The CAT823, CAT824, and CAT825 provide basic reset...
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.
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
Microprocessor and Microcontroller Based Systems
Critical μP Monitors
Technical Documentation & Design Resources
Product Change Notification
VCC Max (V):
V(TO) Typ (V):
IQ Typ (µA):
Reset Active State: