TC12 TELCOM [TelCom Semiconductor, Inc], TC12 Datasheet

TC12

Manufacturer Part Number

TC12

Description

LOW COST, ONE WIRE DIGITAL THERMOMETER WITH SHUTDOWN

Manufacturer

TELCOM [TelCom Semiconductor, Inc]

Datasheet

1.TC12.pdf (1 pages)

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LOW COST, ONE WIRE DIGITAL THERMOMETER WITH SHUTDOWN

FEATURES

APPLICATIONS

FUNCTIONAL BLOCK DIAGRAM

TYPICAL APPLICATION

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

Notebook Computers

File Servers

Desktop Computers

TELCOM SEMICONDUCTOR, INC.

MEASUREMENT

2.7V to 5.5V

TC12

ZONE

TC12

TEMPERATURE

DELTA SIGMA

TO VOLTAGE

MODULATOR

CONVERTER

I/O

CONTROLLER

MICRO

SHDN

OUT

ORDERING INFORMATION

Part No.

TC12CVCT

TC12NVCT

TC625EV

NOTE: *SOT-23A-5 is equivalent to EIAJ (SC-74).

PIN CONFIGURATION

GENERAL DESCRIPTION

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.

output of the TC12 offers superior immunity to system noise

and does not require an A/D converter. Unlike two wire serial

temperature sensors, the TC12 communicates over a single

wire, and without complex serial protocol overhead.

EVALUATION

AVAILABLE

The TC12 is a monolithic temperature sensor that

Unlike voltage output temperature sensors, the digital

KIT

NOTE: *SOT-23A-5 is equivalent to EIAJ (SC-74)

Package

SOT-23A-5* – 40 C to +125 C

Evaluation Kit for the TC12 and TC625

D OUT

PRELIMINARY INFORMATION

V DD

SOT-23A-5*

(Top View)

TC12CVCT

TC12NVCT

SHDN

Temp. Range Output Config.

GND

Complimentary

TC12-01 11/13/96

Open Drain

TC12

2-31

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