TMPO1 internal functional block diagram and basic application circuit

TMP01 is a temperature sensor that features a programmable temperature controller, an integrated reference voltage source, a current source, a voltage comparator, and an amplifier circuit. The internal circuit function block diagram and basic application circuit are provided. The key electrical parameters are as follows: temperature measurement accuracy of Icc, power supply range of +4.5V to +13.2V, and an operating temperature range of -55°C to +125°C. The device offers a 2.5V reference voltage output, which can be adjusted using an external resistor (R) and a voltage divider (R3). Two temperature control points are available: high temperature (SET HIGH) and low temperature (SET LOW). When the temperature sensor detects a temperature, the internal amplifier outputs a voltage that is compared to a reference voltage. If the output voltage is lower than the reference voltage, the comparator output goes low; conversely, if the temperature exceeds the set threshold, the output goes high. The TMP01 outputs a temperature signal where the output voltage is proportional to the absolute temperature, with a change of 5mV/K, yielding an output of 1.49V at 25°C. The TMP01 facilitates the design of dual limit temperature control circuits and can directly drive a small relay for alarm control.

The TMP01 temperature sensor is a versatile component suitable for various temperature monitoring and control applications. Its integrated features allow for precise temperature measurements and programmable control, making it ideal for systems requiring accurate thermal management.

The temperature measurement accuracy of the TMP01 is critical for applications needing reliable data. The device operates within a wide voltage supply range of +4.5V to +13.2V, which provides flexibility for integration into different electronic systems. The operating temperature range of -55°C to +125°C ensures functionality in extreme environments, suitable for industrial, automotive, and consumer electronics applications.

The reference voltage output of 2.5V can be utilized for calibration and to set reference points in the circuit. By employing an external resistor and a voltage divider, the user can fine-tune the sensor's response to specific temperature thresholds. The two programmable temperature control points (SET HIGH and SET LOW) enable the TMP01 to serve as a robust temperature switch, activating or deactivating connected devices based on the measured temperature.

The internal amplifier and comparator work in tandem to provide a clear indication of whether the measured temperature is above or below the set points. The output voltage from the TMP01 is directly proportional to the temperature, allowing for straightforward interpretation of the sensor's readings. The sensitivity of 5mV/K ensures that even small temperature changes are detectable, making it suitable for precision applications.

Furthermore, the TMP01's ability to drive a small relay simplifies the design of alarm systems. When the temperature exceeds the predefined limits, the relay can be activated to trigger alarms or control cooling/heating systems, enhancing the overall functionality of the temperature control system. This feature is particularly useful in applications such as HVAC systems, refrigeration, and process control systems, where maintaining specific temperature ranges is crucial for operational efficiency and safety.

Overall, the TMP01 temperature sensor's combination of accuracy, programmability, and integrated features makes it a valuable component in modern electronic designs requiring temperature monitoring and control capabilities.TMP01 is a temperature sensor that comes with a programmable temperature controller, primarily integrated reference voltage source, a current source, a voltage comparator, an amplifier circuit, the internal circuit function block diagram and basic application circuit is shown. The basic electrical parameters are as follows: temperature measurement accuracy of Icc, the power supply is + 4.5 ~ 13 2V, operating temperature range of -55.

+ 125qC. O feet 2. 5V reference voltage output, the voltage through an external resistor R, a voltage divider R3, to , feet are provided temperature is high (SET HIGH), low temperature (SET LOW) two temperature control point, when temperature sensor detects a temperature letter after number by the internal amplifier output voltage is lower than the potential of foot after the comparator output voltage comparator pin from low level; when the temperature is higher than the amplifier output voltage potential of pin , pin output low level. TMPoi foot temperature signal output, the output voltage is proportional to absolute temperature, the amount of change of 5mV / K, at 25 , output 1.

49V. TMP01 can easily double limit temperature control circuit design two high and low temperature alarm control circuit. , feet can directly drive a small relay.