TMP110 datasheet(11/44 Pages) TI

11 / 44 page

7 Detailed Description

7.1 Overview

The TMP113 is a digital output temperature sensor that comes factory calibrated for accuracy. The device

features a two-wire, SMBus and I2C compatible interface with two modes of operation: continuous conversion

mode and one-shot conversion mode, designed for thermal management and thermal protection applications.

The TMP113 also includes an alert status register with individual high and low thresholds.

7.2 Functional Block Diagram

SCL

GND

SDA

Digital

Core

Temperature

sensor circuit

Oscillator

Bank

ADC

V+

ADD0

ALERT

Internal

thermal

BJT

7.3 Feature Description

7.3.1 Digital Temperature Output

The digital output from each temperature measurement is stored in the read-only temperature register. The

temperature register of the TMP113 device is configured as a 12-bit, read-only register that stores the output of

the most recent conversion. The device output is as shown in Table 7-1.

Table 7-1. 12-Bit Temperature Data Guidelines

Temperature Bit Length

Q Notation

LSB (°C)

Range (+)

Range (-)

0.0625

127.93475

-128

Two bytes have to be read to obtain data. Byte 1 is the most significant byte (MSB), followed by byte 2, the

least significant byte (LSB). The first 12 bits are used to indicate temperature. The least significant byte does not

have to be read if that information is not needed. The data format for temperature is summarized in Table 7-2.

One LSB equals 0.0625°C. Negative numbers are represented in binary two’s complement format. Following

power-up or reset, the temperature register has 0°C until the first conversion is complete. The unused bits in the

temperature register always read 0.

Table 7-2. 12-Bit Temperature Data Format

TEMPERATURE (°C)

DIGITAL OUTPUT (BINARY)

HEX (four LSBs are not used)

>127.9375

0111 1111 1111

7FF

127.9375

0111 1111 1111

7FF

100

0110 0100 0000

640

0101 0000 0000

500

0100 1011 0000

4B0

0011 0010 0000

320

0001 1001 0000

190

0.25

0000 0000 0100

004

0.0625

0000 0000 0001

001

www.ti.com

TMP113

SBOSAJ5 – DECEMBER 2024

Submit Document Feedback

Product Folder Links: TMP113

TMP110 Datasheet(PDF) 11 Page - Texas Instruments

TMP110 Datasheet(HTML) 11 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

Datasheet Download

Link URL