Introduction

Qi2 represents the next phase in wireless charging tech by the Wireless Power Consortium (WPC). Its standout feature is the integration of Apple's MagSafe-based MPP (Magnetic Power Profile) into the older Qi standard. Unlike BPP and EPP, MPP includes magnets for precise alignment, ensuring faster, more efficient charging, and increased convenience. This standard aims for an improved wireless charging experience while setting the stage for future advancements and added features.

(All data above from the official WPC forecasts)

MagSafe & Qi2 MPP

Talking about Qi2 naturally leads to a quick introduction to MagSafe. MagSafe is Apple's magnetic technology used for attaching accessories like chargers and cases to iPhones through magnetic alignment. To achieve 15W fast charging for iPhones, it needs Apple's MFi certification; otherwise, it operates at 7.5W. Qi2 MPP upgrades the proprietary protocol to the WPC standard. With Qi2 certification, it delivers 15W fast charging for iPhones, reducing costs for manufacturers and enabling more chip and device makers to produce compatible, cost-effective products.

During the iPhone 15 launch, Apple explicitly confirmed support for the Qi2 wireless charging standard in the series. Chargers adhering to the Qi2 standard can provide users with a wireless fast-charging experience akin to MagSafe, even without Apple's "MFi" certification.

The MPP module not only replaces traditional MagSafe modules but also slashes wireless charging costs while enhancing user experience. With the official release of iOS 17.1, the iPhone 15 series fully embraces MPP 15W. ChargerLAB learned that Southchip swiftly rolled out a new Qi2 MPP wireless charging module, seamlessly adapting to the 15W wireless charging requirement for the iPhone 15 series, offering users a more convenient and efficient wireless charging journey.

Southchip Qi2 MPP Wireless Charging Module

This Southchip MPP wireless charging module supports 5V to 9V DC input and various Qi wireless power configurations.

It employs the wireless charging protocol controller SC9610, integrating a 32-bit core and wireless charging-related peripherals. Besides MPP support, it covers Basic Power Profile (BPP), Extended Power Profile (EPP), and private high-power modes. Furthermore, the SC9610 integrates a high-res full-bridge controller, multi-channel ASK demodulation, and supports multiple power sources like DC, USB-PD, HVDCP. It also houses the SC8329 boost converter for voltage regulation during charging.

The module supports an I2C interface and functions as an I2C slave, facilitating control and status management when connected as a subordinate module to an I2C host system.

Additionally, it incorporates various protection functions. To support data encryption in MPP mode, it even integrates Fudan Micro's encryption authentication chip FM1230, ensuring comprehensive and reliable system security.

The graph depicts the charging curve of Southchip's Qi2 MPP wireless charging module, charging the iPhone 15 from 10% to 100% in only 90 minutes, sustaining an input power of over 17W for 20 minutes.

Summary of ChargerLAB

Southchip's latest Qi2 MPP wireless charging module supports 5V to 9V DC input, works with BPP, EPP, and MPP wireless power configurations, and includes the wireless charging protocol controller SC9610 and boost converter SC8329. It offers an I2C interface, serving as an I2C slave to a customer's I2C host. The module integrates multiple protection functions, like foreign object detection and overcurrent protection, while leveraging Fudan Micro's encryption authentication chip FM1230 for robust system security.

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