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Why are these power banks so small, dismantling found that they all have built-in power bank single-chip solutions

author:Charging head net

Preface

Nowadays, people's demand for mobile power supply is also increasing, and in this fast-paced life, people have a certain demand for lightweight and efficient mobile power supply. In order to meet this market gap, the built-in main control chip solution of the mini power bank is also constantly iteratively upgraded to provide better performance and user experience.

In the past few years, the mini power bank market has been booming, and the mini power bank with built-in single-chip solution has gained widespread attention and recognition from consumers. Compared with traditional mobile power banks, these products with built-in single-chip master control chip SOC have smaller size, lower cost and higher conversion efficiency, so they are favored by more and more consumers.

In this article, the charging head network will take stock of some recent mini power bank built-in main control chip solutions. Help readers better understand the application scenarios of these chips.

The main control chip of the mobile power bank that appears in the article

Why are these power banks so small, dismantling found that they all have built-in power bank single-chip solutions

Some of the parameters of the various chips that appear in the article are shown in the figure, and the detailed parameters will be introduced in detail for you below.

Siyuan Semiconductor MP5216

Why are these power banks so small, dismantling found that they all have built-in power bank single-chip solutions

Siyuan Semiconductor MP5216 is a single-chip mobile power bank solution. The chip integrates a switch charge management module, an LED power display module, and a synchronous boost discharge management module. The maximum charging current can reach 2A, the discharge current is 2.1A, and it supports the automatic shutdown function at light load. The chip is in an ESOP8 package, and the peripheral components are simplified.

Application examples

Disney Loose Series True Wireless Fast Charging Power Bank

Why are these power banks so small, dismantling found that they all have built-in power bank single-chip solutions

The power bank also has a USB-C plug that can be connected to the USB-C port to charge the phone, and a USB-C socket for charging using a USB-C cable. There is also a foldable bracket on the body of the power bank, which is convenient for the mobile phone to be used in an inclined manner, and the design is more versatile.

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Yingjixin IP5328P

Why are these power banks so small, dismantling found that they all have built-in power bank single-chip solutions

Yingjixin IP5328P is a mobile power SOC chip, which is packaged in QFN40 and integrates buck-boost and protocol identification functions. Thanks to the high level of integration and the small number of chip peripherals, IP5328 is well suited for small PCB designs. At the same time, Yingjixin IP5328P also integrates PD2.0/PD3.0/QC2.0/QC2.0/ QC3.0/FCP/AFC/SFCP/MTK PE/USB C DRP/BC1.2 input and output charging protocols. PD fast charging supports 5V, 9V, 12V voltage range input/output, and has passed QC3.0 Qualcomm certification, certificate number: 4788056908-2.

Application examples

mophie迷你20W 5000mAh快充移动电源

Why are these power banks so small, dismantling found that they all have built-in power bank single-chip solutions

Mophie has launched a compact PowerStation Mini power bank, which is designed with an aluminum alloy case, making it compact and portable. The built-in 5000mAh battery supports 20W output power, which is capable of charging an iPhone by 50% in 30 minutes and is capable of adding 21 hours of video playback time to the phone.

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Yingjixin IP5356

Yingjixin IP5356 mobile power SoC is a mobile power SoC chip that integrates PD2.0/PD3.0 and other mainstream fast charging input/output protocols, as well as buck-boost converters, lithium battery charging management, battery level indication and other functions, which can provide a complete solution for the development of fast charging mobile power supply, using QFN40 package.

Why are these power banks so small, dismantling found that they all have built-in power bank single-chip solutions

Yingjixin's IP5356 synchronous switch boost system can provide a maximum output capacity of 22.5W, PD protocol supports 5V, 9V, 12V three voltage ranges, supports USB-A port ×2, MicroUSB port, USB-C port 4 interface control, any USB port can support fast charging alone, when using two or more output ports at the same time, it is intelligently reduced to 5V. IP5356 has built-in all power MOS and path management MOS, which only needs one inductor to achieve step-down and step-up functions in the application, and has few peripheral components, effectively reducing the size of the overall solution and reducing the BOM cost.

Application examples

I'm going to go to the Pro

Why are these power banks so small, dismantling found that they all have built-in power bank single-chip solutions

iWALK is a power bank designed with its own output cable, which can be easily used to charge your phone through the USB-C output cable, or connect to a charger to charge the power bank, eliminating the trouble of finding a data cable. The power bank has a 20W bidirectional fast charging function, and has PPS fast charging, which is very compatible with the fast charging of Apple and Android mobile phones. In addition, there is also a percentage power display, which can more accurately understand the remaining power.

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iWALK 4800mAh 20W快充口袋充电宝Pro

Why are these power banks so small, dismantling found that they all have built-in power bank single-chip solutions

This mini power bank is small in size and comes with a USB-C plug, which can be directly connected to the tail plug of the mobile phone for charging, without using a data cable, eliminating the trouble of carrying a data cable. The power bank has a 20W fast charging output and PPS fast charging, which is very good for fast charging compatibility with Apple and Android mobile phones.

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Zhirong SW6003

Why are these power banks so small, dismantling found that they all have built-in power bank single-chip solutions

Zhirong SW6003 is a highly integrated Type-C mobile power bank dedicated all-in-one chip, using QFN32 package, the chip supports USB-A+Micro USB+USB-C and Lightning interfaces, and the chip integrates 2.4A high-efficiency switch charging and 2.4A synchronous boost output. The chip has built-in fuel metering, LED light power display and control management logic, simplified peripheral components of the chip, and complete protection functions.

Application examples

FlashPole 5000mAh Mini Power Bank

Why are these power banks so small, dismantling found that they all have built-in power bank single-chip solutions

This accompanying mini power bank has a built-in 21700 battery and a capacity of 5000mAh, which achieves a perfect balance between volume, weight and user experience. The power bank is equipped with replaceable USB-C terminals and Lightning terminals, which can be replaced according to the different mobile phones used, making them more versatile. And you can also use the USB-C cable that comes with the power bank for charging, which is convenient to use.

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Teardown report: Shanji 5000mAh Mini Power Bank

Summary of the charging head network

Through this article, we can learn about the practical application cases of five built-in single-chip solutions, these mini power banks with built-in main control chips are smaller in size, lower development costs, and at the same time improve integration and conversion efficiency. From Siyuan Semiconductor's MP5216 to Yingjixin's IP5328P, IP5356, and then to Zhirong's SW6003, each chip has its own adaptable product type, which can meet the needs of different user groups.

In addition, the wide application of single-chip mobile power solutions has also promoted the development of the entire mobile power equipment industry, bringing consumers richer choices and better products. We can expect more single-chip solutions to emerge in the future to further improve the conversion efficiency of mobile power devices and allow users to enjoy a better charging experience.

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