From March 14 to 16, the 2023(Spring) Asia Charging Exhibition, which attracted much attention from the industry, was grandly opened in Shenzhen Futian Convention and Exhibition Center。Core Sea Technology (stock code:688595) UFCS chip CPW3101, as the first charging protocol chip in the industry that passed the UFCS Fusion fast charge certification, was invited by Guangdong Terminal Fast Charge Industry Association to participate in the exhibition, and received enthusiastic attention from professional visitors。

Guangdong Terminal fast charge Industry Association is led by ICT, Huawei, OPPO, vivo, Xiaomi and domestic mobile phone manufacturers，Joint construction of domestic terminal machine, charging chips, instruments, chargers, accessories and other terminal fast charging industry chain parties，Committed to the effective promotion of fusion fast charging technology，The UFCS trademark is authorized for products that meet UFCS standards。

买球软件软件Technology CPW3101 was invited to participate in the exhibition

CPW3101 integrates a high-performance MCU core，Maximum operating frequency 24MHz，Built-in 32Kbytes Flash，2Kbytes SRAM，With UART, I2C, timer and other rich peripherals，With high integration, high anti-interference, high reliability of the product characteristics。Operating temperature range -40℃-85℃, operating voltage range 2.2V-5.5V, provides a variety of low power operation modes。

CPW3101 as an integrated bidirectional UFThe CS protocol chip can better meet the bidirectional power supply design needs of terminal products such as smart phones, tablets, laptops, and portable energy storage power supplies。

In 2021, in order to solve the waste of resources caused by the flooding of fast charging private agreements and incompatible terminal applications, the European Union formally proposed a unified charging interface proposal, requiring electronic products to use a unified charging interface before 2024.Therefore, "fast charging protocol unification" has become the trend of The Times。

In recent years, with the official release of UFCS converged fast charge standard in China, it has been rapidly popularized in the field of consumer electronics, and mobile intelligent terminal products such as smartphones, tablets and laptops that support converged fast charge technology are ushering in rapid growth。For these smart mobile terminals, the UFCS protocol can bring better charging compatibility, security and experience。

Smart phones, tablets and laptops based on CPW3101 with UFCS converged fast charging capabilities，It can be used in overcharge range of voltage adjustment, minimum step of voltage adjustment and minimum step of current adjustment，The adjustment accuracy is higher through the fusion of fast charge protocol，It can protect the battery of the end product from overvoltage and overcurrent，Thus bring a more secure fast charge experience to the end product。

At present, CPW3101 has mature development applications in product categories such as smart phones, tablets and notebook computers。

CPW3101 can connect the TX/RX to the CPU for USB data transmission through the 4 pairs of differential signals in the USB Type C interface, and communicate with the main control CPU through the I2C interface。The main control CPU can control CPW3101 for UFCS protocol power negotiation and obtain the negotiation status。

The D+/D- of the CPW3101 connects to the DP/DM of the USB Typec interface respectively for UFCS protocol handshake and communication，Power negotiation，After completing power negotiation to obtain VBUS，The VBUS can be controlled to power the charger through the load switch，Thus, the UFCS of smart mobile terminal products such as smart phones, tablets and laptops can be quickly charged。

At present, with many brand terminal manufacturers of all kindsUFCS protocolWith the rapid popularity of terminal products, more and more portable energy storage power supplies are gradually integrating the UFCS fusion fast charge protocol, which has become a major feature selling point。

In general, the fast charge function of portable energy storage power supply products mainly benefits from the maturity of high-power booster chip and fast-charge protocol chip technology。In general, according to the different application scenarios, the fast charge protocol chip can be divided into charging end (DFP), receiving end (UFP), dual role end (DRP) three types, portable energy storage power supply application protocol chip is generally DRP chip, in order to achieve high-power two-way fast charge function。

UFCS application block diagram of mobile power/energy storage power based on CPW3101

At present, in addition to CPW3101, Core Sea Technology's UFCS product layout is also for notebooks&CS32G051 for display applications, CPW3301 for charger applications, CSU3AF10 for power accessories applications and other series of products, and have been commercialized by customers。