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TMP127-Q1
  • TMP127-Q1
  • TMP127-Q1

TMP127-Q1

ACTIVE

Automotive ±0.8°C SPI temperature sensor with 175°C operation

Texas Instruments TMP127-Q1 Product Info

1 April 2026 6

Parameters

Local sensor accuracy (max)

0.8

Type

Local

Operating temperature range (°C)

-55 to 175

Supply voltage (min) (V)

1.62

Interface type

SPI

Supply voltage (max) (V)

5.5

Features

Continuous Conversion, Shutdown

Supply current (max) (µA)

4

Temp resolution (max) (bps)

14

Remote channels (#)

0

Addresses

1

Rating

Automotive

TI functional safety category

Functional Safety-Capable

Package

SOT-23 (DBV)-6-8.12 mm² 2.9 x 2.8

Features

  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade-0: –55 °C to 175 °C ambient operating temperature
    • Device HBM classification level 2
    • Device CDM classification level C2b
  • Functional Safety Capable
  • High accuracy
    • ±0.8 °C (maximum) from –55 °C to 150 °C
    • ±1 °C (maximum) from 150 °C to 175 °C
  • Supply range of 1.62 V to 5.5 V
  • Automated continuous conversion mode
  • Shutdown mode
  • Low power consumption
    • Typical standby current of 0.5 µA
    • Typical shutdown current of 0.35 µA
  • Factory calibrated
  • 3-wire SPI interface
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade-0: –55 °C to 175 °C ambient operating temperature
    • Device HBM classification level 2
    • Device CDM classification level C2b
  • Functional Safety Capable
  • High accuracy
    • ±0.8 °C (maximum) from –55 °C to 150 °C
    • ±1 °C (maximum) from 150 °C to 175 °C
  • Supply range of 1.62 V to 5.5 V
  • Automated continuous conversion mode
  • Shutdown mode
  • Low power consumption
    • Typical standby current of 0.5 µA
    • Typical shutdown current of 0.35 µA
  • Factory calibrated
  • 3-wire SPI interface

Description

The TMP127-Q1 is a high accuracy 0.8 °C digital temperature sensor that supports an ambient temperature range of -55 °C to 175 °C. The TMP127-Q1 features a 14-bit signed temperature resolution (0.03125 °C per LSB) while operating over a supply range of 1.62 V to 5.5 V. The device has excellent PSR, able to maintain accuracy over the entire supply range. With a fast conversion rate, low supply current, simple SPI compatible interface, and an enhanced operational temperature range it is ideal for a wide range of applications.

The TMP127-Q1 SPI interface features a simplified no register map protocol, with a read-only 3-Wire configuration and an optional read-write 4-Wire configuration. The TMP127-Q1 is a drop-in, software compatible replacement to the LM71 and is available in a small SOT package for close placement to heat sources and quick response times.

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