參數(shù)資料
型號: MC623
廠商: ON SEMICONDUCTOR
元件分類: 溫度/濕度傳感器
英文描述: 3V, Dual Trip Point Temperature Sensor
中文描述: 3V的,雙跳變點(diǎn)溫度傳感器
文件頁數(shù): 1/4頁
文件大?。?/td> 71K
代理商: MC623
Semiconductor Components Industries, LLC, 1999
February, 2000 – Rev. 0
1
Publication Order Number:
MC623/D
The MC623 is a 3V 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 2.7V
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
FUNCTIONAL BLOCK DIAGRAM
MC623
NC
LOW
SET
HIGH
SET
GND
Temp to
Voltage
Converter
Vref Gen.
Vref Gen.
Vref
+
+
Latch
R S
Q
CONTROL
HIGH
LIMIT
LOW
LIMIT
VCC
1
2
3
4
8
7
6
5
RLOW < RHIGH
SO–8
D SUFFIX
CASE TBD
PRELIMINARY INFORMATION
http://onsemi.com
Device
Package
Shipping
ORDERING INFORMATION
MC623DR2
8–Pin SOIC
2500 Tape/Reel
PIN CONFIGURATION
(Top View)
MC623D
1
2
3
4
8
7
6
5
NC
LOW SET
HIGH SET
GND
VCC
LOW LIMIT
HIGH LIMIT
CONTROL
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