+/-1°C Remote and Local Temperature Sensor with Beta, N-Factor and Series-R Correction - TMP431

TMP431 (ACTIVE)

+/-1°C Remote and Local Temperature Sensor with Beta, N-Factor and Series-R Correction

Recommended alternative parts

  • TMP451  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   1.8V supply voltage, without data compensation

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 IC 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 TMP431/32 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.

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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Parametrics Compare all products in Remote Temperature Sensors

 
Interface
Pin/Package
Shutdown
Approx. Price (US$)
Operating Temperature Range (C)
Rating
Remote Channel
Remote Sensor Correction
Programmable Alert
Remote Diode Temp Range for Listed Accuracy (C)
TMP431 TMP432
I2C
SMBus    
I2C
SMBus    
8VSSOP     10VSSOP    
Yes     Yes    
0.45 | 1ku     0.55 | 1ku    
-40 to 125     -40 to 125    
Catalog     Catalog    
1     2    
Beta Compensation
n-Factor Correction
Series Resistance Cancellation    
Beta Compensation
n-Factor Correction
Series Resistance Cancellation    
No     No    
-40 to 150     -40 to 150    

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