±3

±2

±1

0

1

2

3

±75

±50

±25

0

25

50

75

100

125

150

Temperature (

ƒC)

Mean

Mean - 6

Mean + 6

C005

TMP75C

A2

SDA

SCL

GND

ALERT

2

6

8

7

1

A1

A0

4

3

5

0.01 2F

Two-Wire

Host Controller

1.4 V to 3.6 V

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

TMP75C

SBOS707B – APRIL 2014 – REVISED AUGUST 2014

TMP75C 1.8-V Digital Temperature Sensor with Two-Wire Interface and Alert

1 Features

3 Description

The TMP75C is an integrated digital temperature

1

•

Low-Voltage Alternative to NCT75 and ADT75

sensor with a 12-bit analog-to-digital converter (ADC)

•

Digital Output with Two-Wire Serial Interface

that can operate at a 1.8-V supply, and is pin and

•

Up to 8 Pin-Programmable Bus Addresses

register compatible with the NCT75 and ADT75. This

device

is

available

in

SOIC-8

and

VSSOP-8

•

Overtemperature ALERT Pin with Programmable

packages and requires no external components to

Trip Values

sense the temperature. The TMP75C is capable of

•

Shutdown Mode for Battery Power Saving

reading temperatures with a resolution of 0.0625°C

•

One-Shot Conversion Mode

and is specified over a temperature range of –55°C to

+125°C.

•

Operating Temperature Range: –55°C to +125°C

•

Operating Supply Range: 1.4 V to 3.6 V

The TMP75C features SMBus and two-wire interface

compatibility, and allows up to eight devices on the

•

Quiescent Current:

same bus with the SMBus overtemperature alert

–

15

μA Active (typ)

function. The programmable temperature limits and

–

0.3

μA Shutdown (typ)

the ALERT pin allow the sensor to operate as a

stand-alone thermostat, or an overtemperature alarm

•

Accuracy:

for power throttling or system shutdown.

–

±0.25°C (typ) from 0°C to +70°C

The factory-calibrated temperature accuracy and the

–

±0.5°C (typ) from –20°C to +85°C

noise-immune digital interface make the TMP75C the

–

±1°C (typ) from –55°C to +125°C

preferred solution for temperature compensation of

•

Resolution: 12 Bits (0.0625°C)

other sensors and electronic components, without the

need

for

additional

system-level

calibration

or

•

Packages: SOIC-8 and VSSOP-8

elaborate board layout for distributed temperature

sensing.

2 Applications

The TMP75C is ideal for thermal management and

•

Server and Computer Thermal Management

protection of a variety of consumer, computer,

•

Telecommunication Equipment

communication,

industrial,

and

environmental

•

Office Machines

applications.

•

Video Game Consoles

Device Information(1)

•

Set-Top Boxes

DEVICE NAME

PACKAGE

BODY SIZE (NOM)

•

Power Supply and Battery Thermal Protection

SOIC (8)

4.90 mm × 3.90 mm

•

Thermostat Control

TMP75C

VSSOP (8)

3.00 mm × 3.00 mm

•

Environmental Monitoring and HVAC

(1) For all available packages, see the package option addendum

•

Electrical Motor Driver Thermal Protection

at the end of the datasheet.

Temperature Accuracy (Error) vs Ambient

Simplified Schematic

Temperature

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.