Layout the new magnetic wireless charging market in advance – ChangZhou Sun-Rise Electronic Co.,Ltd.

foreword

As we all know, Apple mobile phones have made major innovations in wireless charging since the iPhone 12 series. The new MagSafe magnetic wireless charging has brought users a good experience in terms of charging speed and usage. However, to achieve the so-called 15W MagSafe magnetic wireless charging, third-party products need to use Apple’s MFi-certified wireless charging module, otherwise, even if it can “click” to charge, the power will be greatly reduced, which will affect consumers’ choices.

However, with the implementation of EU regulations, Apple has gradually become more open in terms of charging, and they are also vigorously promoting the latest Qi2 wireless charging standard released by WPC. Previously, it was reported that the new Apple iPhone 15 will open the 15W magnetic charging that has been encrypted before. Suck wireless charging. Both: only need to pass Qi2 related certification, even without Apple's MFi certification authorization, third-party products can bring users an extremely fast wireless fast charging experience.

Everyone in the industry knows what it means to enter the originally closed Apple ecological chain with unchanged performance and quality and better prices. The release of the Qi2 standard will inevitably further promote the development of the entire magnetic wireless charging ecosystem and bring positive impetus to the industry.

What is Qi2 wireless charging

WPC's latest Qi2 wireless charging standard, the optimized MPP protocol based on Apple MagSafe, is convenient for users to align and use when wireless charging, and has better compatibility and charging efficiency. WPC standardizes and standardizes it, and integrates authentication verification to better optimize practicability and convenience, and better promote the popularization of wireless charging.

Qi2 certification requires the product to include EPP and MPP emission regions and must include authentication. A single BPP wireless charger cannot be Qi2 certified. In an all-in-one wireless charger, BPP can be included, but at least one EPP or MPP must be included.

Qi2 certification must pass ATL verification. At present, there are 11 WPC authorized laboratories.

While the new Qi2 wireless charging standard brings great opportunities, it also puts forward higher technical requirements for wireless charging systems. According to the incomplete statistics of the charging head network, many manufacturers such as Yichong, Yingjixin, Maxic, Voda, Chenxin, and Weipu Innovation have launched related Qi2 standard wireless charging chips to meet the upcoming new wireless charging Market demand.

CP YiChong

CPS8200

Yichong CPS8200 is a highly integrated and high-efficiency wireless charging transmitter chip. The chip integrates a 32-bit processor, built-in 64+2KB MTP, 32KB ROM and 2KB SRAM, of which MTP supports read and write protection, and supports CC pin and DPDN data line programming. The chip has two I2C interfaces with two UART interfaces.

CPS8200 supports QC2.0/QC3.0/PD3.1/SCP/AFC fast charging, internally integrates three pairs of half-bridge drivers, supports step-up or step-down conversion, supports fixed-frequency voltage regulation charging, and only needs to match the corresponding MOS tube A complete Qi2 wireless charger can be realized.

CPS8200 supports 24V supply voltage, the power stage supports 45V supply voltage, the chip integrates overvoltage, overcurrent and overheating protection functions, internally integrates switching buck converter, linear regulator, DC-DC controller, full bridge driver and communication module , multi-channel 12-bit ADC with extremely low standby power consumption. CPS8200 is packaged in QFN6*6-48.

CPS4041

Yichong CPS4041 is a highly integrated and high-efficiency wireless charging receiving chip, compatible with Qi2 standard. It supports 60W wireless charging receiving and 20W wireless charging transmitting functions, especially suitable for mobile phones and portable devices. The chip integrates a high-efficiency synchronous full-bridge/half-bridge rectifier, which is used to rectify the AC AC induced by the coil into a DC output. The chip has a built-in low-dropout voltage regulator, which is suitable for battery-powered equipment.

Yichong CPS4041 has a built-in 30mΩ synchronous rectifier with 1% current sampling accuracy and dedicated temperature detection. It integrates a 32-bit processor inside, has GPIO pins and open-source pins, supports I2C interface for system configuration and personalized settings, and has a built-in 12-bit ADC for input power and output power detection.

Yichong CPS4041 has a built-in 30mΩ synchronous rectifier with 1% current sampling accuracy and dedicated temperature detection. It integrates a 32-bit processor inside, has GPIO pins and open-source pins, supports I2C interface for system configuration and personalized settings, and has a built-in 12-bit ADC for input power and output power detection.

Yichong CPS4041 two-in-one wireless charging chip integrates rectifier overvoltage protection, LDO overcurrent protection and overheating protection. It can be configured as wireless charging receiving or wireless charging transmitting. It is suitable for WPC compatible wireless charging devices such as smartphones and tablets. use. CPS4041 is packaged in 2.82*4.22mm WLCSP-53.

INJOINIC

IP6802 is a complete single-chip wireless charging SOC chip. This chip has a built-in PD3.0 protocol, supports the use of PD fast charging and DP&DM fast charging for power supply, automatically applies for fast charging voltage, and supports 4~20V input voltage. The chip has built-in full-bridge driver and digital demodulation, no external driver and op amp are needed, and a complete Qi2 wireless charging product can be realized with four MOS transistors and a small number of peripheral components.

Yingjixin IP6802 integrates 32-bit MCU, ADC, timer and H-bridge driver, and also integrates I2C communication, demodulation and decoding circuits and rich IO resources, supporting function customization and certification testing. IP6802 has a built-in 32KB MTP memory, supports repeated firmware upgrades, supports custom LED indicator effects, and also supports user customization through the PC host computer.

IP6802 has built-in dynamic power adjustment. For USB power adapters with insufficient power supply capacity, it can keep wireless charging uninterrupted by reducing the transmission power. The chip supports static and dynamic FOD foreign object detection, supports external NTC thermistor for overheat protection, and supports input overvoltage protection, overcurrent protection and undervoltage protection.

In addition, IP6802 supports external passive crystal oscillator, supports the use of low-cost CBB capacitors or NPO capacitors, meets the application of wireless chargers with different costs and different appearances, simplifies design, and reduces material and production costs through high integration. The chip is packaged in QFN5*5-32, which can be made into a very compact finished product to meet the personalized design.

MAXiC美芯晟

MT5811

Maxic MT5811 is a highly integrated Qi-compliant wireless charging transmitter chip that integrates USB PD, QC and other fast charging protocols, and supports 15W output power.

MT5811 integrates ARM M0 processor, has excellent high efficiency and compact design, and provides powerful and independent secondary development space. The chip integrates 3 pairs of NMOS drivers, which can be used in wireless chargers for single-coil applications, and supports constant frequency voltage regulation control without external drivers.

MT5811 has strong scalability, customized configuration, and adopts highly integrated embedded SoC architecture and flexible interface design. It is suitable for various low-cost and low-power applications, and can be widely used in 5G smart terminals, smart wearable devices, and smart homes. , Internet of Things, smart home appliances for wireless charging equipment.

NuVolta伏达

NU1708A

Voda Semiconductor NU1708A is a highly integrated wireless charging transmitter chip that supports 4.5-20.5V input voltage. The chip integrates high-efficiency full-bridge MOS tubes and full-bridge MOS tube drivers, and also integrates a wireless charging main control chip, which greatly reduces space occupied.

NU1708A internally integrates a 32-bit MCU with a main frequency of 92MHz, integrates 32K MTP and 2K SRAM, integrates PD and QC fast charging and fetching power inside the chip, integrates 11-channel 15-bit ADC, supports I2C and UART interfaces, and integrates high-precision nondestructive current detection internally. Integrated overvoltage, overcurrent, overheating and other protection functions.

NU1718

Voda NU1718 is a highly integrated wireless charging transmitter controller. The chip supports 4.5-30V input voltage. The chip integrates a step-up or step-down controller, supports 5-45V output voltage, and supports 25mV step adjustment. The controller integrates three pairs of half-bridge drivers to support dead time and slew rate control.

NU1718 integrates 5V 3.3V and 1.8V voltage regulators, high-precision current detection for FOD foreign object detection and in-band communication, high-precision Q value detection and resonant frequency measurement inside the chip, integrated multiple protection functions, integrated I2C and UART Interface, integrated 13-channel 14-bit ADC, integrated 32-bit MCU with 92MHz main frequency, 64K MTP memory and 4K SRAM memory.

The chip also integrates QC and PD fast charging, and the quiescent current in sleep mode is lower than 20μA. The three pairs of half-bridge drivers built in the chip support wireless charging with one of the two coils, which is suitable for desktop wireless charger applications.

Suncore辰芯

CX8915S

CX8915S is a highly integrated and high-efficiency wireless charging SoC chip, compatible with the WPC Qi2 wireless charging standard. The chip integrates all the functions required by the wireless charger, including fast charging protocols such as PD and QC, switching voltage reduction and LDO. , wireless charging control, including a full-bridge MOS tube driver and a full-bridge MOS tube, only a small number of necessary external components are required.

 CX8915S supports USB PD and QC power-taking, internally integrates 32-bit ARM core; core frequency up to 96MHZ, built-in 32KB+4KB storage, built-in single-cycle 32-bit hardware multiplier, supports 32 NVIC interrupt inputs, 4-level adjustable interrupt priority , GPIO supports a variety of working modes, supports 4 independent PWM outputs, rich and flexible PWM functions, up to 6 16-bit timer channels, supports 12bit resolution ADC, up to 1.5Mhz conversion rate and 14 conversion channels, and built-in temperature Detection channel, built-in two ACMP and OPA modules.

WPINNO维普创新

WP8036

Vip Innovations WP8036 is a WPC Qi2.0 compliant wireless charging controller that supports BPP, EPP and MPP applications. The chip integrates ARM M0+ CPU, 64K Flash and 4K RAM. WP8036 supports fast charging and taking power, supports PD fast charging, QC and AFC fast charging.

The chip has built-in over-voltage protection, under-voltage protection, over-current and over-heat protection, built-in FOD detection function, compatible with mainstream mobile phone wireless charging, and supports customized LED display. The chip has high-precision voltage and current detection, supports I2C, UART and SPI communication, has USB online programming function, supports single-coil and multi-coil applications, and the chip is packaged in QFN48.

WP9025

WP9025 is a single-chip wireless charging receiving and transmitting chip that complies with WPC Qi 2.0. The chip supports 55W wireless charging receiving and 15W wireless charging transmitting, suitable for mobile phone applications. The chip has rectifier output overvoltage protection, overheat protection, supports 5-20V output voltage, and supports online upgrade and foreign object detection function programmed by users.

The chip has a built-in 32-bit ARM M0 processor, has I2C interface and GPIO interface for charging control, supports constant voltage and constant current control, and is used for wireless charging output to directly charge the battery. The chip has a built-in 13-channel ADC for power detection and protection functions. It supports online programming and external MCU control through the I2C interface. The chip is packaged in 3.33*4.15mm 63-WLCSP.

Looking back at the beginning, Apple iPhone 12 adopted the new MagSafe magnetic wireless charging technology and increased the wireless charging power to 15W. The seemingly small changes and improvements also greatly changed the development direction of the wireless charging market. Whether it is Apple's original wireless charging accessories or derived MFM certified ecological products, or third-party 7.5W magnetic wireless charging accessories under the Qi wireless charging standard, the entire market is thriving and has remained so far.

Now, with the launch of WPC's latest Qi2 wireless charging standard and Apple's upcoming iPhone 15 opening 15W wireless charging, it will cause huge waves in the current market. It can be predicted that the future market will be based on Qi2 wireless charging standard. generate massive demand.

Manufacturers represented by Yichong, Yingjixin, Maxic, Voda, Chenxin, and VIP Innovation are keenly aware of this, and are the first to launch a batch of new wireless charging chips, which are compatible with the latest Qi2 wireless charging standard. It is necessary to pass Qi2 related certification to realize 15W wireless fast charging for the new iPhone 15, helping customers seize the opportunity in the new wireless charging market.

Sun-Rise Electronic / Calukii US Store

July 27th, 2023