TC12 [TELCOM]
LOW COST, ONE WIRE DIGITAL THERMOMETER WITH SHUTDOWN; 成本低，具有关断功能ONE Wire数字温度计
| 型号： | TC12 |
| 厂家： | 
TELCOM SEMICONDUCTOR, INC |
| 描述： | LOW COST, ONE WIRE DIGITAL THERMOMETER WITH SHUTDOWN |
| 文件： | 总1页 (文件大小：26K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PRELIMINARY INFORMATION
2
EVALUATION
KIT
AVAILABLE
TC12
LOW COST, ONE WIRE DIGITAL THERMOMETER WITH SHUTDOWN
GENERAL DESCRIPTION
FEATURES
The TC12 is a monolithic temperature sensor that
outputs a pulse waveform whose duty cycle varies in direct
proportion to measured temperature. This output format is
easily converted to binary data using logic or the counter/
timer circuit on-board the system microcontroller. Typical
accuracy is ±1°C over the rated measurement range of
– 40°C to +125°C. It operates from supply voltages as low
as 2.7V.
Unlike voltage output temperature sensors, the digital
output of the TC12 offers superior immunity to system noise
anddoesnotrequireanA/Dconverter.Unliketwowireserial
temperaturesensors,theTC12communicatesoverasingle
wire, and without complex serial protocol overhead.
■ Single Wire Interface to Host Microcontroller
■ High Precision ................. ±1°C Accuracy (Typical)
■ Wide Measurement Range .......... – 40°C to +125°C
■ No External Components Required
■ Complimentary (TC12C) or Open Drain Outputs
(TC12N)
■ Low Voltage Operation ........................ 2.7V to 5.5V
■ Small Package ........................................SOT-23A-5
■ Low Cost
■ Shutdown Input
APPLICATIONS
■ Notebook Computers
■ File Servers
■ Desktop Computers
ORDERING INFORMATION
Part No.
Package
Temp. Range Output Config.
FUNCTIONAL BLOCK DIAGRAM
TC12CVCT SOT-23A-5* – 40°C to +125°C Complimentary
TC12NVCT SOT-23A-5* – 40°C to +125°C Open Drain
TC625EV Evaluation Kit for the TC12 and TC625
VDD
TEMPERATURE
TO VOLTAGE
CONVERTER
NOTE: *SOT-23A-5 is equivalent to EIAJ (SC-74).
PIN CONFIGURATION
SHDN
TC12
SOT-23A-5*
(Top View)
DELTA SIGMA
MODULATOR
DOUT
V
NC
4
DD
5
TYPICAL APPLICATION
TC12CVCT
TC12NVCT
2.7V to 5.5V
MICRO
CONTROLLER
2
1
3
D
SHDN GND
OUT
I/O
TC12
NOTE: *SOT-23A-5 is equivalent to EIAJ (SC-74)
MEASUREMENT
ZONE
TC12-01 11/13/96
TELCOM SEMICONDUCTOR, INC.
2-31
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