With the development of autonomous driving technology, LiDAR is one of the key sensors, and its performance directly affects the driving safety of vehicles. Because the laser chip and other components inside the LiDAR are sensitive to temperature, if the working temperature exceeds the normal range, it is easy to cause system failure, so it is necessary to use the NTC chip that is also sensitive to temperature for temperature monitoring and temperature control to keep the operation of the LiDAR stable.

LiDAR generally operates in the range of -10℃ to 60℃, and if it is lower or higher than this range, it may cause it to malfunction. Effective temperature control through the NTC chip can help LiDAR maintain better working condition and improve its performance. Specifically, after the LiDAR starts to work, the NTC will then monitor the temperature, and the obtained temperature information will be compared with the preset operating temperature range. It should be noted that the preset operating temperature range is based on the performance characteristics of the LiDAR and its operating environment, in order to ensure that the radar operates normally within the temperature range. The Digital-to-Analog Converter (DAC) will output the corresponding control voltage to the TEC according to the temperature value of the NTC chip, and the TEC will cool or heat the internal components of the LiDAR according to the accepted voltage until the LiDAR returns to the normal operating temperature range.

As the LiDAR used in autonomous driving is developing in the direction of miniaturization and lightweight, the small-size (can up to 0.3mm × 0.3mm) gold electrode NTC chip independently developed and mass-produced by EXSENSE Electronics Technology Co., Ltd. can well meet its needs. Compared with traditional NTC chips, this product also has the following advantages:

First, high accuracy, which can efficiently assist the LiDAR to complete the temperature control work and ensure that it maintains excellent performance in complex and changeable working environments;

Second, great consistency, which can ensure the high efficiency of the temperature acquisition process of the LiDAR, and the response of the internal temperature detection module is also faster;

Third, high stability, which can assist LiDAR work in extreme environments, is the core guarantee for its smooth operation.

NTC chip monitors the working temperature of the LiDAR in real time, which can ensure that the LiDAR can work stably and efficiently under various conditions. The gold electrode NTC chip of EXSENSE Electronics complements other components inside the LiDAR, which not only improves the safety and reliability of the LiDAR, but also lays a solid foundation for the development of autonomous driving technology in the future.