Introduction

Suncore Semiconductor was established in 2017 and is a high-tech enterprise specializing in the design, development, and sale of power management systems applied in communication, computer, consumer electronics, industrial, and automotive fields.

Since 2018, the company has been involved in wireless charging SoC development. Their products have been widely used in wireless charging stands, magnetic power banks, car mounts, and more.

With the evolution of the 2023 WPC charging standards, the Qi wireless charging standard has transitioned to the Qi2.0 era, incorporating the MPP (Magnetic Power Profile) technology based on Apple's MagSafe charging. Suncore Semi swiftly introduced products compliant with MPP technology to meet customer demands for faster charging, higher efficiency, better integration, and simplified solutions.

What is Qi2 Wireless Charging Standard?

The latest Qi2 wireless charging standard from the WPC, optimized based on Apple's MagSafe, known as the Magnetic Power Profile (MPP) protocol, makes wireless charging more convenient and efficient for users, offering improved compatibility.

Qi2 certification requires products to include EPP and MPP transmitting areas and must incorporate authentication. Single BPP wireless chargers cannot receive Qi2 certification. In multi-in-one wireless chargers, they can include BPP, but they must include at least one EPP or MPP.

Mastering Qi2 | Introducing Suncore Semi MPP 15W Wireless Charging Module-Chargerlab

Qi2 certification must pass ATL verification, and there are currently 11 authorized labs in the WPC network. However, while Qi2 brings immense opportunities, it also presents higher technical requirements for wireless charging systems.

Qi2 MPP Wireless Charging Module

MagSafe is Apple's proprietary protocol, requiring Apple's authorized MFi certification to achieve 15W fast charging for iPhones. Without certification, even though it can magnetically attach for charging, it remains at 7.5W. This limitation restricts the expansion of the ecosystem. Qi2 MPP upgrades the proprietary protocol to the WPC standard. Through Qi2 certification, it can adapt to Apple's 15W fast charging, significantly reducing end-user costs and allowing more chip manufacturers to foster the ecosystem together.

The MPP module not only replaces traditional MagSafe modules but also reduces wireless charging costs and enhances user experience.

ChargerLAB found that Suncore Semi recently released an MPP 15W wireless charging module. This module completed Qi2.0 MPP compatibility test during WPC's Soft-Launch certification in November 2023. Future products using Suncore Semi modules will demonstrate significant advantages in the market.

Suncore Semi MPP 15W Wireless Charging Module

The Suncore Semi MPP 15W wireless charging module mainly comprises the wireless charging master control chip CX8915S, security chip FM1230, and synchronous boost converter JW5513. This module provides a highly integrated solution for the Qi2 wireless charging standard, with minimal peripheral components, optimizing overall design and functionality.

This module integrating three drivers, supporting PD and QC, and DC power supplies. It can achieve a maximum 15W fast charging output, standby power below 300mW, charging efficiency up to 81%, supports BPP+MPP, features various protections like OVP/UVP/OCP, and multiple foreign object detection technologies, ensuring safe, efficient, and reliable charging.

Apart from wireless chargers, it can also be used in car-mounted wireless chargers, MagSafe battery packs, and other products.

This is the appearance of the Suncore Semi MPP 15W wireless charging module.

Charging Test

Next, a detailed charging test will be conducted on the Suncore Semi MPP 15W wireless charging module to verify its performance and stability. Through this series of tests, we will gain a comprehensive understanding of the module's performance in real-world applications.

In the case of iPhone 13 using Apple's MagSafe and Suncore Semi MPP 15W module, Apple's total charging time is 149 minutes, while Suncore Semi's total charging time is only 130 minutes, 19 minutes faster.

For the iPhone 14, Apple's charging time improved slightly to 141 minutes, while Suncore Semi MPP 15W took 127 minutes, 14 minutes faster.

Lastly, charging iPhone 15 Pro using Apple's MagSafe took 129 minutes, while using Suncore Semi MPP 15W took 124 minutes. Compared to Apple's original MagSafe, Suncore Semi MPP 15W was 5 minutes faster.

From these tests, it's evident that at the same working frequency, the Suncore Semi MPP 15W module significantly outperforms Apple's MagSafe in charging speed and efficiency, both for charging to 60% and for 0 to 100% charging time.

Compatibility Test

Moreover, Suncore Semi MPP 15W wireless charging module has passed compatibility tests for multiple series of products from iPhone, Huawei, Xiaomi, Samsung, and more. It has also passed compatibility tests for various charging adapters. Multiple foreign object detection tests have also been successfully completed, providing users with a more reliable and safe charging experience.

Suncore Semi CX8915S

Now, let's take a closer look at the CX8915S found within the module. It is actually a highly integrated and efficient wireless charging SoC from Suncore Semi, compatible with the WPC Qi2 wireless charging standard. The chip integrates all the functions required for wireless chargers, including PD and QC fast charging protocol, switch buck and LDO, wireless charging control, including full-bridge MOSFETs and corresponding drivers, requiring only a small number of essential peripheral components.

It integrates a 32-bit, 96MHz ARM core, 32KB+4KB memory, single-cycle 32-bit hardware multiplier, supports 32 NVIC interrupt inputs, GPIO supports multiple operating modes, supports 12-bit resolution ADC, and includes built-in temperature detection channels.

CX8915S is a comprehensive wireless charging SoC, integrating everything needed for wireless charging: MCU, wireless charging driver level, power level, PWM generator, PD and QC voltage application, buck and voltage stabilization circuit; the peripheral components are very minimal.

Summary of ChargerLAB

In recent years, wireless charging has surged in popularity due to its convenience, efficiency, and technological advancements. The formal integration of Qi2 support by Apple into its iPhones marks a significant step toward the widespread adoption and advancement of wireless charging technology.

The Suncore Semi MPP 15W wireless charging module stands as an outstanding representative in this innovative field, showcasing remarkable performance, rapid charging capabilities, and extensive compatibility. Its exceptional performance in charging speed, stability, and broad compatibility across various branded devices positions it as a frontrunner propelling wireless charging technology to higher echelons.

Mastering Qi2 | Introducing Suncore Semi MPP 15W Wireless Charging Module