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TMP451AQDQFRQ1

Automotive Grade, 1.7V Remote and Local Temp Sensor with N-Factor, Filtering and Series-R Correction

Packaging

Package | PIN: DQF | 8
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $1.45
10-24 $1.30
25-99 $1.21
100-249 $1.05
250-499 $0.97
500-749 $0.82
750-999 $0.67
1000+ $0.61

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • ±1°C Accuracy for Local and Remote
    Diode Sensors
  • 0.0625°C Resolution for Local and Remote
    Channels
  • 1.7-V to 3.6-V Supply and Logic Voltage Range
  • 27-µA Operating Current, 3-µA Shutdown
    Current
  • Series Resistance Cancellation
  • η-Factor and Offset Correction
  • Programmable Digital Filter
  • Diode Fault Detection
  • Two-Wire and SMBus Serial Interface
  • 8-Lead WSON (WDFN) Package

Texas Instruments  TMP451AQDQFRQ1

The TMP451-Q1 device is a high-accuracy, low-power remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensors are typically low-cost discrete NPN or PNP transistors, or substrate thermal transistors or diodes that are integral parts of microprocessors, microcontrollers, or FPGAs. The temperature is represented as a 12-bit digital code for both the local and the remote sensors, giving a resolution of 0.0625°C. The temperature accuracy is ±1°C (maximum) in the typical operating range for the local and the remote temperature sensors. The two-wire serial interface accepts the SMBus communication protocol.

Advanced features such as series resistance cancellation, programmable nonideality factor (η-factor), programmable offset, programmable temperature limits, and a programmable digital filter are combined to provide a robust thermal monitoring solution with improved accuracy and noise immunity.

The TMP451-Q1 device is ideal for multi-location, high-accuracy temperature measurements in a variety of automotive sub-systems. The device is specified for operation over a supply voltage range of 1.7 V to 3.6 V and a temperature range of –40°C to 125°C.