Preface
Recently, Qiaowei launched a self-contained dual-wire power bank, model JP313, this product comes with 1L1C two fast charging cables and 1A1C two fast charging interfaces, which is more friendly to people who often go out. The product supports PD3.0, PPS, QC3.0\QC4+, AFC, SCP, FCP and other fast charging protocols, supports simultaneous charging of four ports, and the maximum fast charging power can reach 30W, meeting the fast charging needs of iPhone, iPad, Huawei mobile phones and most mainstream Android mobile phones on the market. This product is also the first single-cell 30W power bank in the power bank industry!
When dismantling the mobile power supply of Qiaowei, the charging head network found that it has a built-in reconfigurable digital power chip from water core electronics, and the specific model is M12219P, which will be introduced to you in detail below.
Joway 20000mAh comes with a wired power bank
The old look, starting with the appearance of the product.
The shell of the product is made of black matte plastic, the overall shape is rounded, and the grip feels very good. There is a tiled power display on the front, so you can visually see the remaining power. On the left side, there are two recesses for the Lighting and USB-C fast charging cables. The Lighting cable on the upper left side of the fuselage is designed as a handle decoration, making it more convenient to carry it out.
There are two ports on the top of this power bank, 1A1C, which are blue and black with rubber cores. The built-in USB-C cable supports PD3.0, PPS, QC4, and DCP fast charging protocols, and the built-in USB-C interface supports PD3.0, PPS, QC4+\QC3.0, AFC, SCP, FCP, DCP fast charging protocols, and supports up to 30W fast charging, and the built-in USB-A port supports QC3.0, AFC, SCP, FCP, DCP fast charging protocols, and the overall compatibility is very good, which can meet the fast charging needs of most mainstream mobile phones on the market.
After a brief look at the appearance, the charging head network continues to introduce its built-in water core electronics M12219P reconfigurable digital power chip.
Water Core Electronics PD3.0 step-up SOC digital power chip M12219P
The protocol chip built into this power bank is a water core electronic M12219P and is packaged in QFN-40. M12219P is a dedicated SOC for single-cell 30W mobile power applications, integrating synchronous switching boost converter, battery charge and discharge management module, display module, power calculation module, supporting PD3.0, QC3.0, AFC, FCP, SCP, BC1.2, DCP and other mainstream fast charging protocols, and providing input/output overvoltage/undervoltage, battery overvoltage, overcharge/overdischarge, NTC overtemperature, discharge overcurrent, output short-circuit protection and other complete protection functions. With a minimalist peripheral circuit. It can form a 30W multi-port mobile power bank that supports 188-screen display function.
M12219P has ultra-high conversion efficiency and ultra-low temperature, and the efficiency is still as high as 90% under the worst 3.1V to 10V 2.25A test conditions.
This chip supports CBL's own cable function, each USB port and each line supports fast charging, and the C line supports two-way fast charging, which solves the functional defects such as the current multi-line power bank's C port cannot be charged in both directions, and supports the low-current charging mode of the earphone. In addition, it can be flexibly customized according to customer needs.
The charging head network has learned that the M12219 series of water core electronics has also been used by Baseus 22.5W three-wire mobile power supply, you can click the link in the article to learn more.
Summary of the charging head network
Founded in 2020, Suzhou Shuixin Electronic Technology Co., Ltd. (MERCHIP) is a representative chip company for reconfigurable digital power supply in China. The company has forward-looking in the world to put forward the concept of reconfigurable digital power chips and successfully mass production, promoting the historical process of digitization of 300 billion analog power chips, and solving the technical problems of digital power chips in communications, servers, industries, automobiles, new energy and high-end consumer categories.
Qiaowei comes with a dual-wire mobile power supply with a built-in water core electronic M12219P, this chip integrates a fast charging protocol, synchronous switching boost converter, charge and discharge management, power display \ counting and comprehensive safety protection functions, the periphery is minimalist, and one chip can realize the functions of multiple chips in the past.
In addition, this chip supports the free combination of ABCL ports, supports the application of mobile power supply with its own multi-line, and the conversion efficiency of the chip itself is ultra-high, and it can still maintain more than 90% conversion efficiency in harsh environments, and the maximum power output is stable throughout the process without reducing power, which is very suitable for multi-port, self-contained multi-line and other fast-charging mobile power supply scene applications.