TMP432

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Dual Remote and Local Temp Sensor with Automatic Beta, N-Factor and Series-R Correction

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Product details

Parameters

Local sensor accuracy (Max) (+/- C) 1 Operating temperature range (C) -40 to 125 Supply voltage (Min) (V) 2.7 Interface type I2C, SMBus, 2-Wire Supply voltage (Max) (V) 5.5 Supply current (Max) (uA) 45 Temp resolution (Max) (bits) 12 Features One-shot conversion, ALERT Remote channels (#) 2 Addresses 2 Rating Catalog open-in-new Find other Digital temperature sensors

Package | Pins | Size

VSSOP (DGS) 10 9 mm² 3 x 3 open-in-new Find other Digital temperature sensors

Features

  • ±1°C Remote Diode Sensor
  • ±1°C Local Temperature Sensor
  • Automatic Beta Compensation
  • η-Factor Correction
  • Programmable Threshold Limits
  • Two-Wire, SMBus™ Serial Interface
  • Minimum and Maximum Temperature Monitors
  • Multiple Interface Addresses
  • ALERT/THERM2 Pin Configuration
  • Diode Fault Detection

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Description

The TMP431 and TMP432 are remote temperature sensor monitors with a built-in local temperature sensor. The remote temperature sensor diode-connected transistors are typically low-cost, NPN- or PNP-type transistors or diodes that are an integral part of microcontrollers, microprocessors, or FPGAs.

Remote accuracy is ±1°C for multiple device manufacturers, with no calibration needed. The Two-Wire serial interface accepts SMBus write byte, read byte, send byte, and receive byte commands to program the alarm thresholds and to read temperature data.

The TMP43x include beta compensation (correction), series resistance cancellation, programmable non-ideality factor, programmable resolution, programmable threshold limits, minimum and maximum temperature monitors, wide remote temperature measurement range (up to 150°C), and diode fault detection and temperature alert function.

The TMP431 is available in a VSSOP-8 package and the TMP432 is available in a VSSOP-10 package.

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Technical documentation

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Type Title Date
* Datasheet TMP43x ±1°C Temperature Sensor With Series-R, η-Factor, and Automatic Beta Compensation datasheet (Rev. I) Oct. 15, 2019
Technical articles How to choose the right thermistor for your temperature sensing application Feb. 12, 2020
Technical articles How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Technical articles Driving industrial innovation with small-size sensors Sep. 12, 2019
Technical articles How sensor technology is evolving to meet cold chain needs Jun. 18, 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Software development

DRIVERS & LIBRARIES Download
Linux Driver for TMP401
TMP401SW-LINUX The Linux driver supports the TMP401 series of Remote and Local Temp Sensors. The Linux driver supports communication through the I2C bus and interfaces with the Hardware Monitoring sub-system.
Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:
  • (...)

Design tools & simulation

SIMULATION MODELS Download
SBOM410A.ZIP (60 KB) - IBIS Model
GERBER FILES Download
SBOC594A.ZIP (695 KB)

CAD/CAE symbols

Package Pins Download
VSSOP (DGS) 10 View options

Ordering & quality

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