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CAT824

Description
1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO5
Categoryaccessories   
File Size138KB,12 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
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CAT824 Overview

1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO5

CAT823, CAT824, CAT825
System Supervisory Voltage
Reset with Watchdog and
Manual Reset
Description
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
http://onsemi.com
SC−70
SD SUFFIX
CASE 419AC
TSOT−23
TD SUFFIX
CASE 419AE
PIN CONNECTIONS
RESET
GND
MR
1
1
V
CC
CAT823
WDI
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
Microprocessor and Microcontroller Based Systems
Intelligent Instruments
Control Systems
Critical
mP
Monitors
Portable Equipment
RESET
GND
RESET
V
CC
CAT824
WDI
RESET
GND
RESET
1
V
CC
CAT825
MR
(Top Views)
Applications
MARKING DIAGRAM
XXXMG
G
XXX
M
G
= Specific Device Code
= Date Code
= Pb−Free Package*
PIN FUNCTIONS
Pin Name
RESET
GND
MR
Function
CMOS Push−Pull Active Low Reset Output
Ground
Manual Reset input – Pulled high Internally by a 52 kW res-
istor designed to be driven low by a mechanical pushbutton,
open drain output or CMOS output.
CMOS Push−Pull Active High Reset Output
Watchdog Timer Input – Designed to be driven by a processor
output or can be disabled by tri−stating or leaving open.
Power Supply
(*Note: Microdot may be in either location)
RESET
WDI
V
CC
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
©
Semiconductor Components Industries, LLC, 2012
May, 2012
Rev. 8
1
Publication Order Number:
CAT823/D

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Description 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO5 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO5 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO5 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO5
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