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TMP144

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Low-power, digital temperature sensor with SMAART Wire™ / UART interface

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Data sheet

TMP144

ACTIVE
Data sheet Order now

Product details

Local sensor accuracy (max) 1 Type Local Operating temperature range (°C) -40 to 125 Supply voltage (min) (V) 1.4 Interface type UART Supply voltage (max) (V) 3.6 Features Daisy chain Supply current (max) (µA) 3 Temp resolution (max) (bps) 12 Remote channels (#) 0 Addresses 16 Rating Catalog TI functional safety category Functional Safety-Capable
Local sensor accuracy (max) 1 Type Local Operating temperature range (°C) -40 to 125 Supply voltage (min) (V) 1.4 Interface type UART Supply voltage (max) (V) 3.6 Features Daisy chain Supply current (max) (µA) 3 Temp resolution (max) (bps) 12 Remote channels (#) 0 Addresses 16 Rating Catalog TI functional safety category Functional Safety-Capable
DSBGA (YBK) 4 0.847364 mm² 1.142 x 0.742 DSBGA (YFF) 4 1 mm² 1 x 1 PICOSTAR (YMT) 4 0.5776 mm² 0.76 x 0.76
  • 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:
    • 3-µA active I Q at 0.25 Hz
    • 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, 310-µm maximum height, 4-ball YBK (DSBGA)
    • 0.76 mm × 0.96 mm, 625-µm maximum height, 4-ball YFF (DSBGA)
  • 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:
    • 3-µA active I Q at 0.25 Hz
    • 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, 310-µm maximum height, 4-ball YBK (DSBGA)
    • 0.76 mm × 0.96 mm, 625-µm maximum height, 4-ball YFF (DSBGA)

The TMP144 digital output temperature sensor can read temperatures to a resolution of 0.0625°C.

The device has a SMAART Wire™ / UART interface 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 three 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.

The TMP144 digital output temperature sensor can read temperatures to a resolution of 0.0625°C.

The device has a SMAART Wire™ / UART interface 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 three 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.
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Technical documentation

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Type Title Date
* Data sheet TMP144 Low-Power, Digital Temperature Sensor With SMAART Wire™ / UART Interface datasheet (Rev. C) PDF | HTML 15 Mar 2023
Application note How to Read and Interpret Digital Temperature Sensor Output Data PDF | HTML 12 Apr 2024
Application note Under-Component Monitoring With Ultra-Small Temperature Sensors (Rev. A) PDF | HTML 21 Apr 2023
Application brief Efficient Cold Chain Management With Scalable High-Accuracy Temperature Sensors (Rev. A) PDF | HTML 11 Dec 2020
Application note How to Boost Your CPU, GPU, and SoC Performance Through Thermal Accuracy PDF | HTML 22 Sep 2020

Design & development

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Evaluation board

TMP144EVM — TMP144 Low-power, digital temperature sensor with SMAART Wire™ interface evaluation module

The TMP144 digital output temperature sensor is capable of reporting temperature with 0.0625°C resolution. The SMAART Wire™ Interface supports up to 16 devices connected serially in conjunction with a UART host. The TMP144EVM leverages the MSP430F5528 to create a USB-to-SMAART Wire(TM) (...)
User guide: PDF
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DSBGA (YBK) 4 Ultra Librarian
DSBGA (YFF) 4 Ultra Librarian
PICOSTAR (YMT) 4 Ultra Librarian
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