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TC623CVOA Fiches technique(PDF) 1 Page - TelCom Semiconductor, Inc

No de pièce TC623CVOA
Description  3V, DUAL TRIP POINT TEMPERATURE SENSOR
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Fabricant  TELCOM [TelCom Semiconductor, Inc]
Site Internet  http://www.telcom-semi.com
Logo TELCOM - TelCom Semiconductor, Inc

TC623CVOA Fiches technique(HTML) 1 Page - TelCom Semiconductor, Inc

  TC623CVOA Datasheet HTML 1Page - TelCom Semiconductor, Inc TC623CVOA Datasheet HTML 2Page - TelCom Semiconductor, Inc TC623CVOA Datasheet HTML 3Page - TelCom Semiconductor, Inc  
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TELCOM SEMICONDUCTOR, INC.
7
6
5
4
3
1
2
8
3V, DUAL TRIP POINT TEMPERATURE SENSOR
TC623
FEATURES
s
Integrated Temp Sensor and Detector Operate
from a Supply Voltage as Low as 2.7V
s
Replaces Mechanical Thermostats and Switches
s
On-Chip Temperature Sense
s
8-Pin DIP or SOIC for Direct PCB Mounting
s
2 User-Programmable Temperature Set Points
s
2 Independent Temperature Limit Outputs
s
Heat/Cool Regulate Output
APPLICATIONS
s
CPU Thermal Management
s
System Over-or Under-Temperature Shutdown
s
Advanced Thermal Warning
s
Fan Speed Control Circuits
s
Accurate Appliance Temperature Sensing
s
Environmental Control
GENERAL DESCRIPTION
The TC623 is a 3V solid-state, programmable tempera-
ture sensor designed for use in thermal management appli-
cations. 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 equals
the user-programmed limits. The CONTROL output is driven
active (high) when temperature equals 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 TC623 an ideal choice for
many thermal management applications.
ORDERING INFORMATION
Temperature
Part No.
Package
Range
TC623CCOA
8-Pin SOIC
0
°C to +70°C
TC623CCPA
8-Pin Plastic DIP
0
°C to +70°C
TC623CEOA
8-Pin SOIC
– 40
°C to +85°C
TC623CEPA
8-Pin Plastic DIP
– 40
°C to +85°C
TC623CVOA
8-Pin SOIC
– 40
°C to +125°C
FUNCTIONAL BLOCK DIAGRAM
3
HIGH SET
2
LOW SET
1
NC
4
GND
5
CONTROL
6
HIGH LIMIT
VCC
7
LOW LIMIT
8
LATCH
Q
S
R
+
+
TC623
R
< R
LOW
HIGH
VREF
GEN.
VREF
GEN.
VREF
TEMP
TO
VOLTAGE
CONVERTER
GND
HIGH SET
LOW SET
NC
GND
HIGH SET
LOW SET
NC
VCC
HIGH LIMIT
CONTROL
LOW LIMIT
VCC
HIGH LIMIT
CONTROL
LOW LIMIT
8
7
6
5
1
2
3
4
1
8
2
7
3
6
4
5
TC623CCOA
TC623CEOA
TC623CVOA
TC623CCPA
TC623CEPA
PIN CONFIGURATION (DIP and SOIC)
NOTE: Latch Q Output, ("C" Option), is a Standard Device. Contact
Factory for Latch Q Output, ("H" Option).
TC623-5 9/18/96


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