With the widespread application of 5G technology, the 5G era has arrived in full force. 5G devices, with their high speed, low latency, large capacity and high reliability, are widely used in smartphones, tablets, routers, smart home devices and self-driving cars. However, these high-performance 5G devices also bring higher heat generation challenges. To cope with these challenges, chip NTC thermistors, as a kind of high-precision and high-sensitivity temperature sensors, play an important role in the temperature monitoring and control of 5G electronic devices.

1. Challenges of 5G equipment heating problems

Compared with the previous 2G, 3G and 4G devices, 5G devices have significantly improved in terms of communication speed, the amount of processed information, and connectivity to meet the demand for high-definition images, videos, virtual reality, and other large data-volume transmissions, and real-time applications such as automated driving, telemedicine, and IoT communications. At the same time, 5G devices also achieve continuous wide-area coverage and user experience rate improvement under high mobility, and the level of system synergization and intelligence has also been significantly improved.

However, these characteristics also lead to an increase in the load of related components in 5G devices, an increase in the number of heat sources, and multiple heat sources will affect each other's heat transfer. Measures previously taken for a single heat source may not be applicable to simultaneously handling the state of multiple functional hot spots in 5G electronic devices. Therefore, it is important to monitor the temperature of multiple functional hotspots on the substrate and to control the performance of the heat source components according to the complex functions of the electronic devices.

2. Principle and Advantages of Chip NTC Thermistors

Chip NTC thermistor (Negative Temperature Coefficient Thermistor) is a kind of semiconductor element whose resistance value is extremely sensitive to temperature. Its working principle is based on the negative temperature coefficient effect, that is, as the temperature rises, the resistance value decreases exponentially. This high sensitivity allows NTC thermistors to accurately measure small temperature changes.

Chip NTC thermistors offer several advantages:

Small size, no leads: Suitable for high-density surface mounting, taking up little space and offering great freedom of configuration.

High accuracy: High accuracy of resistance value and B-value constant enables precise measurement of temperature.

Wide operating temperature range: usually can work in the range of -40 ℃ ~ +125 ℃, adapt to a variety of harsh environments.

High reliability and stability: the surface of the porcelain body is encapsulated with glass, good moisture resistance and long service life.

Cost-effective: mature production process, new product development cycle is short, mass production of products with different characteristics, reduce costs.

3. The application of chip NTC thermistor in 5G electronic equipment

Temperature monitoring and control

In 5G electronic devices, CPU, GPU, power management module and other key components generate a lot of heat during high-performance operation. If the temperature is not properly controlled, it may lead to performance degradation, system crash or even hardware damage. Chip NTC thermistors can accurately measure the temperature of these components and transmit the temperature information to the control system. The control system adjusts the performance of the components based on the temperature information, such as lowering the CPU frequency, increasing the fan speed, etc., in order to keep the device operating within the appropriate temperature range.

Overheating Protection

When a component in a 5G electronic device becomes too hot, the SMD NTC thermistor can quickly detect the change and trigger an overheating protection mechanism. This typically includes measures such as displaying a warning message, automatically shutting down the device, or switching to safe mode to prevent further damage to the device.

Temperature compensation

In 5G communications, the performance of some key components can be affected by temperature. For example, the frequency stability of a crystal oscillator varies with temperature. Chip NTC thermistors can monitor the temperature of these components in real time and compensate for the effect of temperature on performance by adjusting circuit parameters, thus improving the stability and reliability of the device.

Battery Management

In devices such as 5G smartphones and tablets, battery temperature management is critical to extend battery life and improve device performance. Chip NTC thermistors can monitor the temperature of the battery in real time and adjust charging rates and discharge strategies based on temperature information. For example, when the temperature is too high, the charging rate is reduced to prevent the battery from overheating; when the temperature is too low, the discharging rate is increased to improve the performance of the device.

4. The actual case and effect analysis

Taking a 5G smartphone as an example, the phone generates a lot of heat during high-performance operation. In order to keep the device running within a suitable temperature range, the phone uses a patch NTC thermistor for temperature monitoring and control. By monitoring the temperatures of key components such as the CPU and GPU in real time and adjusting the performance of these components and fan speed based on the temperature information, the phone successfully controls the device temperature within a safe range. This not only improves the stability and reliability of the device, but also extends its service life.

In addition, the phone uses a patch NTC thermistor for battery management. By monitoring the battery temperature in real time and adjusting the charging rate and discharging strategy based on the temperature information, the phone successfully extends the battery life and improves the performance of the device.

5. Conclusion

In summary, SMD NTC thermistors play an important role in 5G electronic devices. Its advantages of high accuracy, high sensitivity, small size, high reliability and stability make it an ideal choice in the field of temperature monitoring and control. By monitoring and controlling the temperature information in 5G electronic devices in real time, we can improve the stability and reliability of the devices, extend the service life of the devices, and optimize the battery management. With the continuous development and popularization of 5G technology, the application of chip NTC thermistors in 5G electronic devices will have a broader future.