CAT823 Series

Voltage Supervisor with Manual Reset and Watchdog

Catalog

Voltage Supervisor with Manual Reset and Watchdog

Part	Voltage - Threshold	Mounting Type	Package / Case	Type	Reset	Reset Timeout [Min]	Number of Voltages Monitored	Output	Operating Temperature [Max]	Operating Temperature [Min]
ON Semiconductor CAT823TTDI-GT3	3.08 V	Surface Mount	SOT-23-5 Thin TSOT-23-5	Simple Reset/Power-On Reset	Active Low	140 ms	1	Push-Pull Totem Pole	85 °C	-40 °C
ON Semiconductor CAT823MSDI-GT3		Surface Mount	5-TSSOP SC-70-5 SOT-353	Simple Reset/Power-On Reset	Active Low	140 ms	1	Push-Pull Totem Pole	85 °C	-40 °C
ON Semiconductor CAT823LSDI-GT3	4.63 V	Surface Mount	5-TSSOP SC-70-5 SOT-353	Simple Reset/Power-On Reset	Active Low	140 ms	1	Push-Pull Totem Pole	85 °C	-40 °C
ON Semiconductor CAT823LTDI-GT3	4.63 V	Surface Mount	SOT-23-5 Thin TSOT-23-5	Simple Reset/Power-On Reset	Active Low	140 ms	1	Push-Pull Totem Pole	85 °C	-40 °C
ON Semiconductor CAT823STDI-GT3	2.93 V	Surface Mount	SOT-23-5 Thin TSOT-23-5	Simple Reset/Power-On Reset	Active Low	140 ms	1	Push-Pull Totem Pole	85 °C	-40 °C
ON Semiconductor CAT823YTDI-GT3	2.19 V	Surface Mount	SOT-23-5 Thin TSOT-23-5	Simple Reset/Power-On Reset	Active Low	140 ms	1	Push-Pull Totem Pole	85 °C	-40 °C
ON Semiconductor CAT823ZSDI-GT3	2.32 V	Surface Mount	5-TSSOP SC-70-5 SOT-353	Simple Reset/Power-On Reset	Active Low	140 ms	1	Push-Pull Totem Pole	85 °C	-40 °C
ON Semiconductor CAT823ZTDI-GT3	2.32 V	Surface Mount	SOT-23-5 Thin TSOT-23-5	Simple Reset/Power-On Reset	Active Low	140 ms	1	Push-Pull Totem Pole	85 °C	-40 °C
ON Semiconductor CAT823RSDI-GT3	2.63 V	Surface Mount	5-TSSOP SC-70-5 SOT-353	Simple Reset/Power-On Reset	Active Low	140 ms	1	Push-Pull Totem Pole	85 °C	-40 °C
ON Semiconductor CAT823RTDI-GT3	2.63 V	Surface Mount	SOT-23-5 Thin TSOT-23-5	Simple Reset/Power-On Reset	Active Low	140 ms	1	Push-Pull Totem Pole	85 °C	-40 °C

Catalog

Voltage Supervisor with Manual Reset and Watchdog

Key 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

Description

The CAT823 and CAT824 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 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.