Ruichengxinwei helps Nanxin launch new wireless charging and fast charging MCU products

In November 2021, Shanghai Nanxin Semiconductor Technology Co., Ltd. (hereinafter referred to as Nanxin), a leading company in the field of power and battery management chips in China, released an MCU product containing Ruichengxinwei's LogicFlash® MTP IP. This new product was jointly developed with Chengdu Ruichengxinwei Technology Co., Ltd. (hereinafter referred to as Ruichengxinwei). This release marks the entry of the cooperation between Ruichengxinwei and Nanxin into a new stage.

The SC9608 launched this time is a highly integrated wireless charging transmitter SOC solution. The chip integrates a 32-bit high-performance MCU, 256Kbits LogicFlash®, a high-efficiency full-bridge inverter system, FSK modulation and dual-channel ASK demodulation system. It supports not only BPP5W, EPP10W and EPP15W wireless charging protocols, but also fast charging protocols such as QC2.0/QC3.0/AFC/FCP/SCP and PD. High-precision voltage and current detection and Q value detection functions support higher-precision FOD algorithms. It also supports the voltage regulation function of external DC-DC, which can better support fixed-frequency voltage regulation applications and fixed voltage input applications.

Ruichengxinwei has its own LogicFlash® IP solution with independent intellectual property rights. Its core technology is to realize the eFlash function through a single layer of polysilicon, which has strong process compatibility. It adopts a 2T1C storage unit architecture to ensure sufficient storage windows and strong anti-interference. The registered trademark LogicFlash® reflects the compatibility with the "Logic" logic process on the one hand, and the performance and reliability that can reach the eflash level on the other hand. LogicFlash® IP not only brings flexibility in process selection and configurability in functional design to customer products, but also greatly reduces chip costs. Therefore, it is widely used in wireless charging, fast charging, PMIC, motor drive and other products.

The SC9608 is based on the 12-inch 90nm BCD advanced process, which has excellent electrical parameters and stable yield guarantee. Ruichengxinwei's LogicFlash® technology supports high-speed reading (20MHz) and high-speed writing (30us/Byte) on this process platform, can be repeatedly erased/written more than 10,000 times, and data can be stored for more than 10 years under high temperature conditions. SC9608 can use the LogicFlash® module to store various wireless charging, fast charging protocols, FOD algorithms, power-on and power-off timing, and calibration parameter information of high-precision modules.

Nanxin CTO Bian Jianjian said that the 90nm LogicFlash® MTP provided by Ruichengxinwei has excellent performance and reliable quality, which has helped Nanxin's wireless charging and protocol products quickly occupy the market after launch and are sought after by many customers. Nanxin looks forward to more comprehensive and in-depth cooperation with Ruichengxinwei in the future.

Xiang Jianjun, Chairman of Ruichengxinwei, said that Ruichengxinwei has been committed to the development of high-reliability eNVM IP, and continues to optimize in terms of area, performance and power consumption to meet the diverse demands of partners for eNVM IP. This cooperation with Nanxin fully demonstrates that LogicFlash® MTP can meet the demand for eNVM in the wireless charging/fast charging market. Ruichengxinwei will also continue to provide more valuable high-performance eNVM technology to global customers and partners.

Nanxin Semiconductor is located in Zhangjiang Hi-Tech Park, Pudong, Shanghai. It focuses on power and lithium battery management related products, including charge pump, DCDC, ACDC, wired charging, wireless charging, BMS, protocol and other fields. As a leading domestic company in power and battery management, Nanxin Semiconductor competes with international veteran manufacturers such as Lingte and TI. At present, Nanxin's IC products have frequently appeared in the products of well-known domestic and foreign brands such as Xiaomi, OPPO, Lenovo, Samsung, DJI, BBK, etc. due to their excellent performance; since 2019, several products assisted by Nanxin IC have been successfully settled in Apple Store. With Nanxin's continued focus on these fields in the future, Nanxin's products will be widely used in various products and various industrial products such as charging peripherals, smart phones, PADs, notebooks, TVs, drones, smart homes, etc.