Want to achieve more efficient wireless charging of PAD stylus? Here is the secret weapon!

1. Application background

The SC9625 chip developed and designed by Nanxin has been successfully applied to the magnetic wireless charging technology of the Xiaomi Pad6S Pro stylus, helping Xiaomi to achieve mass production of the product. The SC9625 is a highly integrated and efficient single-chip wireless power receiver/transmitter IC (RTx). In cooperation with Xiaomi, the SC9625 has brought a better user experience to the magnetic wireless charging of the Xiaomi Pad6S Pro stylus, improving the portability and ease of use of the product.

2. Difficulties and pain points faced by customers

There are many problems with the wired charging method of traditional Pad stylus, including poor portability, easy damage, limited scope of use, unstable connection and wear of charging port. These problems affect the overall user experience and portability of the product, and cannot meet the modern user's demand for convenience and flexibility of mobile devices.

In contrast, magnetic wireless charging technology brings great convenience to users and improves user experience satisfaction. However, wireless charging products on the market still have problems such as low conversion efficiency and high standby power consumption, which directly affects the user experience of the product itself and reduces the overall performance and competitiveness of the product. Therefore, in order to ensure the endurance of the product, the wireless charging power management chip has the requirements of high efficiency and low standby loss.

3. Nanxin product solution-SC9625

Southchip Technology provides a high-performance power management solution SC9625 to address the challenges faced by customers. This solution achieves efficient and highly integrated wireless power conversion. SC9625 integrates an ultra-low on-resistance full-bridge synchronous rectifier, which can effectively convert the AC power sent by the wireless transmitter into DC power. At the same time, SC9625 also integrates a high-performance programmable low-dropout regulator to easily optimize the charging process.

Core functional advantages:

1. Integrated low-impedance and high-efficiency full-bridge synchronous rectifier, which can achieve 97% AC-DC power conversion efficiency;

2. Integrated high-performance programmable low-dropout regulator with regulation accuracy up to 10mV;

3. Integrated 32-bit MCU and 32KB MTP, providing great flexibility for wireless power system development;

4. Adopt WLCSP-54 2.875mm x 4.035mm package, easily realize highly integrated wireless charging system and reduce product size;

5. Ultra-low standby current, lower standby power consumption

Nanxin Technology's 50W highly integrated wireless RTx-SC9625 product provides customers with a practical solution with its efficient and highly integrated wireless power conversion technology. This solution effectively solves many challenges and pain points in wireless charging, allowing users to no longer be subject to the many restrictions of wired charging methods and enjoy a more convenient and flexible charging experience.

4. Conclusion

As a successful case of cooperation between Nanxin Technology and Xiaomi, the efficient and stable performance of SC9625 further improves the charging performance of the Pad6S Pro stylus, enhances the user experience, and thus brings higher user satisfaction and brand loyalty. We look forward to continuing to cooperate with Xiaomi in the future to bring more innovative and high-performance products to users.

Nanxin Technology will continue to be committed to providing customers with efficient chip solutions, continuously promoting the advancement and innovation of industry technology, and realizing a wider range of application scenarios and a better user experience.