±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

A2

SDA

SCL

GND

ALERT

2

6

8

7

1

A1

A0

4

3

5

0.01 2F

Two-Wire

Host Controller

TMP75B

1.4 V to 3.6 V

Product

Folder

Sample &

Buy

Technical

Documents

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Software

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TMP75B

SBOS706B – APRIL 2014 – REVISED AUGUST 2014

TMP75B 1.8-V Digital Temperature Sensor with Two-Wire Interface and Alert

1 Features

3 Description

The TMP75B is an integrated digital temperature

1

•

Low-Voltage Alternative to LM75 and TMP75

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

•

Digital Output with Standard Two-Wire Serial

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

Interface

register compatible with the industry-standard LM75

•

Up to 8 Pin-Programmable Bus Addresses

and TMP75. This device is available in SOIC-8 and

VSSOP-8

packages,

and

requires

no

external

•

Overtemperature ALERT Pin with Programmable

components to sense the temperature. The TMP75B

Trip Values

is capable of reading temperatures with a resolution

•

Shutdown Mode for Battery Power Saving

of 0.0625°C and is specified over a temperature

•

One-Shot Conversion Mode for Custom Update

range of –55°C to +125°C.

Rates

The TMP75B features SMBus and two-wire interface

•

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

compatibility, and allows up to eight devices on the

same bus with the SMBus overtemperature alert

•

Operating Supply Range: 1.4 V to 3.6 V

function. The programmable temperature limits and

•

Quiescent Current:

the ALERT pin allow the sensor to operate as a

–

45

μA Active (typ)

stand-alone thermostat, or an overtemperature alarm

–

0.3

μA Shutdown (typ)

for power throttling or system shutdown.

•

Accuracy:

The factory-calibrated temperature accuracy and the

noise-immune digital interface make the TMP75B the

–

±0.5°C (typ) from –20°C to +85°C

preferred solution for temperature compensation of

–

±1°C (typ) from –55°C to +125°C

other sensors and electronic components, without the

•

Resolution: 12 Bits (0.0625°C)

need

for

additional

system-level

calibration

or

•

Packages: SOIC-8 and VSSOP-8

elaborate board layout for distributed temperature

sensing.

2 Applications

The TMP75B is ideal for thermal management and

protection of a variety of consumer, computer,

•

Server and Computer Thermal Management

communication,

industrial,

and

environmental

•

Telecommunication Equipment

applications.

•

Office Machines

•

Video Game Consoles

Device Information(1)

•

Set-Top Boxes

DEVICE NAME

PACKAGE

BODY SIZE (NOM)

SOIC (8)

4.90 mm × 3.90 mm

•

Power Supply and Battery Thermal Protection

TMP75B

VSSOP (8)

3.00 mm × 3.00 mm

•

Thermostat Control

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

•

Environmental Monitoring and HVAC

at the end of the datasheet.

•

Electrical Motor Driver Thermal Protection

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.