On February 18, 2025, Dalian University Holdings, a leading international semiconductor component distributor dedicated to the Asia Pacific market, announced that its subsidiary, Shiping, has launched the MPP Qi2 wireless module solution based on the Convenient Power WB8118 chip.

Qi2 is a new generation wireless charging technology standard launched by WPC (Wireless Charging Alliance), aimed at providing a better charging experience and paving the way for the development of future wireless charging products and enhanced features. The Qi2 standard introduces the Magnetic Power Profile (MPP) technology based on Apple's MagSafe magnetic charging technology into the Qi wireless charging standard. Compared to BPP and EPP, MPP adds a magnetic ring to achieve optimal positioning alignment. Driven by this technology, Da Da Da Da Da Shi Ping has launched the MPP Qi2 wireless module solution based on the easily accessible semiconductor WB8118 chip, which can accelerate the design of wireless charging products that comply with the Qi2 standard.

WB8118 is an efficient magnetic induction wireless power transmitter IC that supports Qi2 15W wireless fast charging and has a wide input voltage range of 3.3V~18V. This IC is compatible with wireless power receiver (ASK) communication, has a fixed communication interface port, and is equipped with reliable overvoltage, overcurrent, and temperature protection schemes. Integrate voltage regulators, full bridges, and drivers within the IC, and communicate with other devices through the I2C interface.

In terms of appearance design, WB8118 adopts environmentally friendly lead-free technology and compact QFN 24 pin packaging form, with dimensions of 3mm × 4mm × 0.55mm. In addition, the chip has a wide rated operating temperature range and can withstand extreme temperature changes from -40 ℃ to 105 ℃.

In the field of wireless charging, easy to charge semiconductors occupy an important position. The MPP Qi2 wireless module solution jointly launched by Da Da Da Da Shi Ping can simplify the product development and certification process, accelerate the speed of new product launch, and help customers establish advantages in the wireless charging market competition.

Core technological advantages:

Support WPC 2.0 15W/Samsung Fast Charge/Apple Fast Charge;

Input voltage range: 3.3V to 18V;

Integrate core, 256 bytes of internal RAM, 3K bytes of external RAM, 32KB MTP, and 32KB ROM;

High speed architecture, standard mode is 8MHz~48MHz, PWM module is 288MHz;

Integrate two PWM signals up to 288MHz (PWM A with FSK PHY and PWM B with FSK periodic interrupt);

Low RDSON HS/LS: 19mQ;

Support dead time adjustment;

Voltage and current mode demodulation;

Supports 2 I2C interfaces;

Supports 2 UART interfaces;

Support sleep mode and standby mode;

Overvoltage/overcurrent/over temperature protection;

Compliant with RoHS standards, halogen-free, lead-free.

Scheme specifications:

Input voltage: 5V/9V+/-5%;

Rated input current: 3A@5V ， 2.22A@9V ；

Input document requirements:< 150mVp-p；

Supported protocol types: DC、PD3.1；

Static power consumption:< 0.3W；

Output protocol: Qi-BPP5W/Qi-MPP15W/7.5W Apple Fast Charge;

Maximum output power: 15W (14V/1.07A);

System efficiency: 83.5% max @ 15W (T70);

Charging height: 4mm for magnetic suction phones and 5mm for non-magnetic suction phones;

Charging radius: 4mm for magnetic phones and 6mm for non-magnetic phones;

Protection functions: input overvoltage protection, coil over temperature protection, chip over temperature protection, coil peak voltage protection, inverter bridge input overcurrent protection, and over power protection.

Regarding Dahua University Holdings:

Da Da Da Da Da Holdings is an internationally leading semiconductor component distributor dedicated to the Asia Pacific market, headquartered in Taipei. It has subsidiaries such as Shiping, Pinjia, Quanding, and Youshang, with approximately 5000 employees and over 250 authorized product suppliers. The company has 73 distribution locations worldwide, with a total revenue of USD 21.55 billion in 2023. Dahua University has established an industrial holding platform, focusing on international operational scale and local flexibility, and has long been deeply rooted in the Asia Pacific market. With the vision of "industry first choice and channel benchmark", it fully implements the core values of "team, integrity, professionalism, and efficiency", and has been recognized by the "Global Distributor Excellence Performance Award" for 24 consecutive years. Faced with the trend of new manufacturing, Dalian University is committed to transforming into a data-driven enterprise, establishing an online digital platform - "DaDaWang", and advocating the intelligent logistics service (LaaS, Logistics as a Service) model to assist customers in facing the challenges of intelligent manufacturing together. Starting from good intentions and building trust through technology, the University of Hong Kong hopes to collaborate with the industry to establish a competitive ecosystem, and actively promote digital transformation with the sixteen character approach of "focusing on customers, technology empowerment, collaborative ecology, and co creating the era".