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MC642.REV3 Datasheet(PDF) 1 Page - ON Semiconductor

Part No. MC642.REV3
Description  3.0 V, Dual Trip Point Temperature Sensor
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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MC642.REV3 Datasheet(HTML) 1 Page - ON Semiconductor

   
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© Semiconductor Components Industries, LLC, 2003
February, 2003 - Rev. 3
1
Publication Order Number:
MC623/D
MC623
3.0 V, Dual Trip Point
Temperature Sensor
The MC623 is a 3.0 V solid-state, programmable temperature
sensor designed for use in thermal management applications. It
features dual thermal interrupt outputs (LOW LIMIT and HIGH
LIMIT) each of which program with a single external resistor. The
HIGH LIMIT and LOW LIMIT outputs are driven active (high) when
measured temperature exceeds the user-programmed limits. The
CONTROL output is driven active (high) when temperature exceeds
the HIGH LIMIT setpoint, and turned off when temperature falls
below the LOW LIMIT setpoint. The CONTROL output can be used
to provide simple ON/OFF control to a cooling fan if so desired.
Low voltage operation, easy setpoint programming, small size and
low cost make the MC623 an ideal choice for many thermal
management applications.
Features
Integrated Temperature Sensor and Detector Operate from a Supply
Voltage as Low as 2.7 V
Replaces Mechanical Thermostats and Switches
On-Chip Temperature Sense
8-Pin SOIC for Direct PCB Mounting
2 User-Programmable Temperature Set Points
2 Independent Temperature Limit Outputs
Heat/Cool Regulate Output
Operating Temperature Range: -40°C to +85°C
Typical Applications
CPU Thermal Management
System Over-or Under-Temperature Shutdown
Advanced Thermal Warning
Fan Speed Control Circuits
Accurate Appliance Temperature Sensing
Environmental Control
SO-8
D SUFFIX
CASE TBD
PRELIMINARY INFORMATION
Device
Package
Shipping
ORDERING INFORMATION
MC623DR2
8-Pin SOIC
2500 Tape/Reel
PIN CONFIGURATION
MC623D
1
2
3
4
8
7
6
5
NC
LOW SET
HIGH SET
GND
VCC
LOW LIMIT
HIGH LIMIT
CONTROL
(Top View)
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