Diode

Sensor

∆Σ

ADC

Converter

OSC

Control

Logic

Serial

Interface

Config

and Temp

Register

TMP100

Temperature

GND

SCL

1

2

3

6

5

4

1

2

3

6

5

4

ADD1

SDA

ADD0

V+

Diode

Sensor

∆Σ

ADC

Converter

OSC

Control

Logic

Serial

Interface

Config

and Temp

Register

TMP101

Temperature

GND

SCL

ALERT

SDA

ADD0

V+

Temp.

Temp.

TMP100, TMP101

SBOS231I – JANUARY 2002 – REVISED NOVEMBER 2015

www.ti.com

7 Detailed Description

7.1 Overview

The TMP100 and TMP101 devices are digital temperature sensors optimal for thermal management and thermal

protection applications. The TMP100 and TMP101 devices are Two-Wire, SMBus, and I2C interface-compatible.

These devices are specified over a operating temperature range of

−55°C to 125°C. The Functional Block

Diagram section shows the internal block diagrams of the TMP100 and TMP101 devices.

The temperature sensor in the TMP100 and TMP101 devices is the chip itself. Thermal paths run through the

package leads as well as the plastic package. The package leads provide the primary thermal path because of

the lower thermal resistance of the metal. The GND pin of the TMP100 or TMP101 is directly connected to the

metal lead frame, and is the best choice for thermal input.

7.2 Functional Block Diagram

8

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