TMP01FJ

低功耗可编程温度控制器 Low Power Programmable Temperature Controller

GENERAL DESCRIPTION

The TMP01 is a temperature sensor that generates a voltage output proportional to absolute temperature and a control signal from one of two outputs when the device is either above or below a specific temperature range. Both the high/low temperature trip points and hysteresis overshoot band are determined by user-selected external resistors. For high volume production, these resistors are available on board.

The TMP01 consists of a band gap voltage reference combined with a pair of matched comparators. The reference provides both a constant 2.5 V output and a voltage proportional to absolute temperature VPTAT which has a precise temperature coefficient of 5 mV/K and is 1.49 V nominal at 25°C. The comparators compare VPTAT with the externally set temperature trip points and generate an open-collector output signal when one of their respective thresholds has been exceeded.

FEATURES

  −55°C to +125°C −67°F to +257°F operation

  ±1.0°C accuracy over temperature typ

  Temperature-proportional voltage output

  User-programmable temperature trip points

  User-programmable hysteresis

  20 mA open-collector trip point outputs

  TTL/CMOS compatible

  Single-supply operation 4.5 V to 13.2 V

  PDIP, SOIC, and TO-99 packages

APPLICATIONS

  Over/under temperature sensor and alarm

  Board-level temperature sensing

  Temperature controllers

  Electronic thermostats

  Thermal protection

  HVAC systems

  Industrial process control

  Remote sensors