TMP144 Low-Power, Digital Temperature Sensor With SMAART Wire™ / UART

Interface

1 Features

• Multiple Device Access (MDA):

– Global read/write operations

• SMAART Wire™ / UART interface

• Resolution: 12-bit or 0.0625 °C

• ±1 °C maximum (–10 °C to +100 °C)

• ±2 °C maximum (–40 °C to +125 °C)

• Low quiescent current:

– 0.6-μA shutdown

• Supply range: 1.4 V to 3.6 V

• Push-pull digital output

• Package:

– 0.76 mm × 0.96 mm, 150-µm maximum height,

4-ball YMT (DSBGA)

– 0.76 mm × 0.96 mm, 625-µm maximum height,

4-ball YFF (DSBGA)

2 Applications

• Handsets

• Smartphones

• Tablets

• LED Backlighting

• HDTVs

• Enterprise Servers

• Notebooks

• Medical

3 Description

The TMP144 digital output temperature sensor can

read temperatures to a resolution of 0.0625 °C.

that supports daisy-chain configurations. The interface

also

supports

Multiple

Device

Access

(MDA)

commands that let the host communicate with multiple

devices on the bus simultaneously. MDA commands

are used as an alternative to sending individual

commands to each device on the bus. Up to 16

TMP144 devices can be attached together serially

and can be read by the host computer.

The TMP144 device is designed for space-

constrained, power-sensitive applications with multiple

temperature measurement zones that must be

monitored. The device is specified for operation over

a temperature range of –40 °C to 125 °C and is

available in two different 4-ball, low-height wafer chip-

scale package (DSBGA) options. The YMT package

of the device has a height of 150 µm, which is 40%

thinner than a 0201 resistor. The thinner YMT

package can be placed under heat-dissipating

components on the system for better accuracy and

faster thermal response times.

Device Information (1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TMP144

YFF DSBGA (4)

0.76 mm x 0.96 mm

YMT DSBGA (4)(2)

0.76 mm x 0.96 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

(2)

YMT package is Advanced Information only.

Host

TX

RX

TMP144

U1

RX

V

+

TX

GND

TMP144

U2

RX

V

+

TX

GND

TMP144

U(n-1)

RX

V

+

TX

GND

TMP144

U(n)

RX

V

+

TX

GND

0.1µ F

0.1µ F

0.1µ F

0.1µ F

Up to 16 TMP144 devices can be configured as a daisy-chain. (See Device Nomenclature)

Simplified Application

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TMP144

SBOS891A – OCTOBER 2018 – REVISED FEBRUARY 2021

Copyright © 2021 Texas Instruments Incorporated

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TMP144

SBOS891A – OCTOBER 2018 – REVISED FEBRUARY 2021

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.