TCN75AVOA713 View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

TCN75AVOA713

2-Wire Serial Temperature Sensor

Microchip Technology 

TCN75A

2-Wire Serial Temperature Sensor

Features:

• Temperature-to-Digital Converter

• Accuracy:

- ±1 (typ.) from -40°C to +125°C

- ±2°C (max.) from +40°C to +125°C

• User-selectable Resolution: 0.5°C to 0.0625°C

• Operating Voltage Range: 2.7V to 5.5V

• 2-wire Interface: I2C™ Compatible

• Operating Current: 200 μA (typ.)

• Shutdown Current: 2 μA (max.)

• Power-saving One-shot Temperature

Measurement

• Available Packages: MSOP-8, SOIC-8

Typical Applications:

• Personal Computers and Servers

• Hard Disk Drives and Other PC Peripherals

• Entertainment Systems

• Office Equipment

• Data Communication Equipment

• General Purpose Temperature Monitoring

Typical Application

VDD

PIC®

Microcontroller R

SDA

SCL

I/O Ports

ALERT

RPULL-UP

VDD

1 SDA VDD 8

2 SCL A0 7

3 ALERT A1 6

4 GND A2 5

TCN75A

Description:

Microchip Technology Inc.’s TCN75A digital tempera-

ture sensor converts temperatures between -40°C and

+125°C to a digital word, with ±1°C (typ.) accuracy.

The TCN75A product comes with user-programmable

registers that provide flexibility for temperature-sensing

applications. The register settings allow user-select-

able, 0.5°C to 0.0625°C temperature measurement

resolution, configuration of the power-saving Shutdown

and One-shot (single conversion on command while in

Shutdown) modes and the specification of both

temperature alert output and hysteresis limits. When

the temperature changes beyond the specified limits,

the TCN75A outputs an alert signal. The user has the

option of setting the alert output signal polarity as an

active-low or active-high comparator output for thermo-

stat operation, or as temperature event interrupt output

for microprocessor-based systems.

This sensor has an industry standard 2-wire, I2C™

compatible serial interface, allowing up to eight devices

to be controlled in a single serial bus. These features

make the TCN75A ideal for low-cost, sophisticated

multi-zone temperature-monitoring applications.

Package Types

8-Pin SOIC, MSOP

SDA 1

SCL 2

ALERT 3

GND 4

8 VDD

7 A0

6 A1

5 A2

© 2006 Microchip Technology Inc.

DS21935C-page 1

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