TMP61-Q1 Automotive grade, silicon-based linear thermistor with a positive temperature coefficient (PTC) | TI.com

TMP61-Q1
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Automotive grade, silicon-based linear thermistor with a positive temperature coefficient (PTC)

 

Description

The TMP61-Q1 small silicon linear thermistors are designed for temperature measurement, protection, compensation, and control systems. Compared to traditional NTC thermistors, the TMP61-Q1 device offers enhanced linearity and consistent sensitivity across the full temperature range. The TMP61-Q1 offers robust performance due to device immunity to environmental variation and built-in fail-safe behaviors at high temperatures. This device is currently available in a 2-pin, surface-mount, 0402 footprint-compatible X1SON package and a 2-pin, through-hole, mini-sized transistor-outline TO-92S package.

Features

  • AEC-Q100 qualified for automotive applications
  • Temperature options:
    • TMP61QDEC Grade 1: –40°C to +125°C, TA
    • TMP61QLPG Grade 1: –40°C to +125°C, TA
    • TMP61ELPG Grade 0: –40°C to +150°C, TA
  • Silicon-based thermistor with a
    Positive Temperature Coefficient (PTC)
  • Linear resistance change across with temperature compared to non-linear thermistors
    • Simplifies resistance-to-temperature conversion methods
    • Reduces look up table memory requirements
    • Eliminates the need for linearization circuitry or multipoint calibration
    • Decreases the accuracy spread across a wide temperature range
  • 10-kΩ nominal resistance at 25°C (R25)
    • ±1% maximum (0°C to 70°C)
  • Consistent sensitivity across temperature
    • 6400 ppm/°C TCR (25°C)
    • 0.2% typical TCR tolerance across temperature (–40°C to 125°C)
  • Fast thermal response time:
    • 0.6 second for DEC package
  • Long lifetime and robust performance
    • Ultra low power consumption compared to traditional NTCs that lower errors due to self heating
    • Built-in fail-safe in case of short-circuit failures
    • <1% maximum drift after high temperature and high humidity stress tests
  • Available package options:
    • X1SON (DEC/0402 footprint)
    • TO-92S (LPG)

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Parametrics

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Part number Order Local sensor accuracy (Max) (+/- C) Operating temperature range (C) Supply current (Max) (uA) Sensor gain (mV/Deg C) Rating Package Group Package size: mm2:W x L (PKG) Approx. price (US$) Output impedance (ohms) Interface
TMP61-Q1 Order now 4     -40 to 125
-40 to 150    
400     6400 ppm/°C     Automotive     TO-92 | 2
X1SON | 2    
2TO-92: 6 mm2: 1.52 x 4 (TO-92 | 2)
2X1SON: 1 mm2: .6 x 1 (X1SON | 2)    
0.11 | 1ku     10000     Resistance    
LM60-Q1 Order now 2     -40 to 125     110     6.25     Automotive     SOT-23 | 3     3SOT-23: 7 mm2: 2.37 x 2.92 (SOT-23 | 3)     0.36 | 1ku     800     Analog Output    
LMT87-Q1 Order now 2.7     -50 to 150     8.1     -13.6     Automotive     SC70 | 5     5SC70: 4 mm2: 2.1 x 2 (SC70 | 5)     0.22 | 1ku       Analog Output    
TMP235-Q1 Order now 1.5     -40 to 125
-40 to 150    
12     10     Automotive     SC70 | 5
SOT-23 | 3    
5SC70: 4 mm2: 2.1 x 2 (SC70 | 5)
3SOT-23: 7 mm2: 2.37 x 2.92 (SOT-23 | 3)    
0.18 | 1ku     20     Analog output