Texas Instruments TMP64/TMP64-Q1 Silicon Linear Thermistors

Texas Instruments TMP64/TMP64-Q1 Silicon Linear Thermistors offer linearity and consistent sensitivity across temperature to enable simple and accurate methods for temperature conversion. Low power consumption and a small thermal mass minimize the impact of self-heating. The TMP64-Q1 devices are AEC-Q100 qualified for automotive applications.

The TMP64/TMP64-Q1 Silicon Linear Thermistors are designed for a long life of high performance with built-in failsafe behavior at high temperatures and powerful immunity to environmental variation.

The small size of the TMP64/TMP64-Q1 series also allows for close placement to heat sources and quick response times. The TMP64/TMP64-Q1 is currently available in a 0402 footprint-compatible X1SON package.

Features

  • Silicon-based thermistor with a positive temperature coefficient (PTC)
  • Linear resistance change across the temperature
  • 47kΩ nominal resistance at 25°C (R25)
    • ±1% maximum (0°C to 70°C)
  • Wide operating temperature of -40°C to +125°C
  • Consistent sensitivity across the temperature
    • 6400ppm/°C TCR (25°C)
    • 0.2% typical TCR tolerance across the temperature range
  • Fast thermal response time of 0.6s (DEC)
  • Long lifetime and robust performance
    • Built-in fail-safe in case of short-circuit failures
    • 0.5% typical long term sensor drift

Applications

  • Temperature monitoring
  • HVAC and thermostats
  • Industrial control and appliances
  • Thermal compensation
  • Display backlights
  • Building automation
  • Thermal threshold detection
  • Motor control
  • Chargers

Functional Diagram

Block Diagram - Texas Instruments TMP64/TMP64-Q1 Silicon Linear Thermistors

Texas Instruments TMP64/TMP64-Q1 Silicon Linear Thermistors