Ultra Low Power Digital Temperature Sensor

PCT2202 Block Diagram

PCT2202 Block Diagram

PCT2202 requires no external components and it is a capable of reading temperatures at 12-bit resolution or 0.0625 °C with an accuracy of ±0.5 °C from 0 °C to 85 °C. It is an ultra low power, 1.8 V, 1 deg. C accuracy, digital temperature sensor with I2C-bus interface available in a tiny WLCSP6 package.

The PCT2202 features SMBus and I2C-bus interface compatibility including HSM (High-Speed Mode: 3.4 MHz), and allows up to four devices on one bus. It also features an SMB alert function.

The PCT2202 is ideal for extended temperature measurement in a variety of communication, computer, consumer, environmental, industrial, and instrumentation applications. The device is specified for operation over a temperature range of -40 °C to +125 °C and a voltage range of 1.65 V to 1.95 V.

Why Used

  • Supply range: 1.8 V ± 0.15 V
  • Tiny WLCSP6 package
  • Accuracy: 0.5 °C from 0 °C to +85 °C
  • Resolution: 12 bits
  • Low quiescent current:
    • 30 μA Active
    • 1 μA Shut-down

Where Used

  • Computer peripheral thermal protection
  • Portable and battery-powered applications
  • Battery management
  • Electromechanical device temperatures
  • General temperature measurements:
    • Industrial controls
    • Test equipment
    • Medical instrumentation

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