|
|
PDF TC623 Data sheet ( Hoja de datos )
| Número de pieza | TC623 | |
| Descripción | Dual Trip Point Temperature Sensor | |
| Fabricantes | Microchip Technology | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de TC623 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
|
No Preview Available !
TC623
3V, Dual Trip Point Temperature Sensor
Features
• Integrated Temp Sensor and Detector Operate
from a Supply Voltage as Low as 2.7V
• Replaces Mechanical Thermostats and Switches
• On-Chip Temperature Sense
• 8-Pin DIP or SOIC for Direct PCB Mounting
• 2 User Programmable Temperature Set Points
• 2 Independent Temperature Limit Outputs
• Heat/Cool Regulate Output
Applications
• CPU Thermal Management
• System Over or Under Temperature Shutdown
• Advanced Thermal Warning
• Fan Speed Control Circuits
• Accurate Appliance Temperature Sensing
• Environmental Control
Device Selection Table
Part Number Package
Temp. Range
TC623CCOA 8-Pin SOIC
0°C to +70°C
TC623CCPA 8-Pin PDIP
0°C to +70°C
TC623CEOA 8-Pin SOIC
-40°C to +85°C
TC623CEPA 8-Pin PDIP
-40°C to +85°C
TC623CVOA 8-Pin SOIC -40°C to +125°C
NOTE: Latch Output (C option), is a Standard Device. Con-
tact Factory for Latch Q Output (H option).
Functional Block Diagram
1
NC
Temperature
To Voltage
Converter
TC623
8
VCC
LOW SET 2
VREF
Gen.
+
–
7
LOW LIMIT
3
HIGH SET
4
GND
VREF
VREF
Gen.
+6
HIGH LIMIT
–
R SQ
5
CONTROL
Latch
RLOW < R HIGH
Package Type
SOIC
NC 1
8
LOW SET 2 TC623CCOA 7
HIGH SET
3
TC623CEOA 6
TC623CVOA
GND 4
5
VCC
LOW LIMIT
HIGH LIMIT
CONTROL
PDIP
NC 1
LOW SET 2
HIGH SET 3
GND 4
TC623CCPA
TC623CEPA
8 VCC
7 LOW LIMIT
6 HIGH LIMIT
5 CONTROL
General Description
The TC623 is a 3V solid-state, programmable temper-
ature sensor designed for use in thermal management
applications. It features dual thermal interrupt outputs
(LOW LIMIT and HIGH LIMIT) each of which are set
with an 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 temper-
ature equals the HIGH LIMIT set point and turned off
when temperature falls below the LOW LIMIT set point.
The CONTROL output can be used to provide simple
ON/OFF control to a cooling fan if so desired.
Low voltage operation, easy set point programming,
small size and low cost make the TC623 an ideal
choice for many thermal management applications.
© 2002 Microchip Technology Inc.
DS21441B-page 1
1 page  
4.0 TYPICAL APPLICATIONS
4.1 Mounting
If the TC623 is used to measure the temperature of
another device, it is important that the top surface of the
TC623 package be in intimate contact with the
measured device. Good thermal conductivity and no air
space is critical to accurate temperature measurement
in applications of this type.
4.2 Trip Point Programming
The resistance values required for the HIGH SET and
LOW SET inputs are calculated using the formula
below:
Where;
RTRIP = 0.5997 x T 2.1312
RTRIP = Programming resistor value in Ohms
T = Desired trip temperature in degrees Kelvin.
For example, to program a trip point of 50°C, the pro-
gramming resistor is:
RTRIP = 0.5997 x (50 + 273.15)2.1312) = 133.65kΩ
TC623
© 2002 Microchip Technology Inc.
DS21441B-page 5
5 Page 
TC623
Information contained in this publication regarding device
applications and the like is intended through suggestion only
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
No representation or warranty is given and no liability is
assumed by Microchip Technology Incorporated with respect
to the accuracy or use of such information, or infringement of
patents or other intellectual property rights arising from such
use or otherwise. Use of Microchip’s products as critical com-
ponents in life support systems is not authorized except with
express written approval by Microchip. No licenses are con-
veyed, implicitly or otherwise, under any intellectual property
rights.
Trademarks
The Microchip name and logo, the Microchip logo, FilterLab,
KEELOQ, microID, MPLAB, PIC, PICmicro, PICMASTER,
PICSTART, PRO MATE, SEEVAL and The Embedded Control
Solutions Company are registered trademarks of Microchip Tech-
nology Incorporated in the U.S.A. and other countries.
dsPIC, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB,
In-Circuit Serial Programming, ICSP, ICEPIC, microPort,
Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM,
MXDEV, PICC, PICDEM, PICDEM.net, rfPIC, Select Mode
and Total Endurance are trademarks of Microchip Technology
Incorporated in the U.S.A.
Serialized Quick Turn Programming (SQTP) is a service mark
of Microchip Technology Incorporated in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2002, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
© 2002 Microchip Technology Inc.
Microchip received QS-9000 quality system
certification for its worldwide headquarters,
design and wafer fabrication facilities in
Chandler and Tempe, Arizona in July 1999
and Mountain View, California in March 2002.
The Company’s quality system processes and
procedures are QS-9000 compliant for its
PICmicro® 8-bit MCUs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals,
non-volatile memory and analog products. In
addition, Microchip’s quality system for the
design and manufacture of development
systems is ISO 9001 certified.
DS21441B-page 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet TC623.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| TC620 | (TC620 / TC621) Dual Trip Point Temperature Sensors | Microchip Technology |
| TC620 | (TC620 / TC621) DUAL TRIP POINT TEMPERATURE SENSORS |  TelCom Semiconductor |
| TC621 | (TC620 / TC621) Dual Trip Point Temperature Sensors | Microchip Technology |
| TC621 | (TC620 / TC621) DUAL TRIP POINT TEMPERATURE SENSORS | TelCom Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |