MC642.REV3 Datasheet, PDF (1/5 Pages) ON Semiconductor – 3.0 V, Dual Trip Point Temperature Sensor

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
http://onsemi.com
SO-8
D SUFFIX
CASE TBD
PRELIMINARY INFORMATION
PIN CONFIGURATION
NC 1
LOW SET 2
HIGH SET 3
GND 4
8 V_CC
7 _{LOW LIMIT}
MC623D
6 _{HIGH LIMIT}
5 CONTROL
(Top View)
ORDERING INFORMATION
Device
Package
Shipping
MC623DR2
8-Pin SOIC 2500 Tape/Reel
© Semiconductor Components Industries, LLC, 2003
1
February, 2003 - Rev. 3
Publication Order Number:
MC623/D