Preface
Do you have such troubles when you travel on business or travel all year round: every time you go out, the power bank is not enough, you can't charge your laptop or the power bank itself is too slow to charge. It doesn't matter, Romax has launched a 27000mAh fast charging mobile power supply for consumer pain points, with 2A2C four fast charging interfaces, and it is no problem to charge four devices at the same time, and the USB-C port supports 65W PD fast charging input and output, which meets the charging needs of most mobile phones and some thin and light laptops on the market.
Recently, when dismantling the mobile power supply of Romas, the charging head network found that it was equipped with two mobile power supply SOC chips from water core electronics, the model is M12266, and the following editor will introduce this efficient reconfigurable digital power chip in detail for you.
Roma 27000mAh 65W fast charging power bank
As always, look at the exterior first, then look at the inside.
This product comes in a three-piece package, namely: dual USB-C cables, an instruction manual, and a power bank body.
The mobile power supply shell is made of black matte plastic, which feels delicate to the touch, and the curved design on both sides makes it feel very good. On the front of the fuselage, there is a classic Romax round battery display, which can display information such as remaining power and fast charging status. The front is also printed with the Romax logo and the 65W fast charging logo, and there is a power button on the side.
There are 2A2C four charging ports on the top of the fuselage, all of which use purple rubber cores, and relevant information is marked on one side of the interface, allowing users to intuitively understand the actual performance of the interface. The performance of the two USB-C ports measured by the charging head network and the supported protocols are the same, namely: PD3.0, PPS, QC3.0, QC5, AFC, SCP, FCP, DCP, and the maximum support is PD3.0 65W fast charging. The other two USB-A support QC3.0, AFC, SCP, FCP, and DCP fast charging protocols. The built-in fast charging protocol is comprehensive, and it supports 65W input at the same time, which is very friendly to people who often travel and travel, and can be described as a "small steel cannon" in the mobile power industry.
After a brief look at the appearance, the charging head network continues to introduce its built-in water core electronics M12266 power bank SOC.
Water Core Electronics PD3.0 Mobile Power Supply SOC Digital Power Chip M12266
This mobile power bank of Romas, both fast charging uses water core electronics M12266 mobile power supply SOC. M12266 is a dedicated digital power SOC chip for multi-string high-power mobile power applications, in QFN-48 package, it can provide a maximum input/output power of 100W, a maximum charge and discharge efficiency of 98%, and support 3 to 6 strings of 4.2V/4.25V/4.3V/4.4V/ The 4.45V battery cells of various specifications are integrated with a synchronous buck-boost voltage converter with a switching frequency of up to 1MHz to ensure the stability and conversion efficiency of the voltage and further improve the overall performance.
M12266 supports various combinations of ABCL ports, supports dual C ports, built-in loop compensation circuits, built-in 16bit high-precision ADC, integrated fast charging protocol controller, battery charge and discharge management module, LED display driver module, fuel gauge module and other functional units, and provides complete protection functions such as over-voltage/under-voltage, over-charge/over-discharge, over-current, over-temperature, output short-circuit protection, etc., to ensure the safe operation of the equipment in various situations.
M12266 SUPPORTS PD3.0, PPS, QC3.0, AFC, FCP, SCP, BC1.2 DCP, APPLE 2.4A AND OTHER MAINSTREAM FAST CHARGING PROTOCOLS. M12266 supports a maximum of 5A charging and discharging current, supports self-adaptation of charging current, discharge voltage range from 3.3 to 20V, discharge voltage accuracy of 10mV, and charging current accuracy of 5mA, ensuring stability, reliability and compatibility under various operating conditions.
The M12266 has a built-in high-efficiency battery charge management module, which can intelligently match the optimal charging method and automatically adjust according to the input supply voltage and battery voltage. The chip supports a variety of charging modes, including trickle charging, constant current charging and constant voltage charging, and can be combined with a minimalist peripheral circuit to form a 100W multi-port power bank.
The charging head network learned that the water core electronics M12266 was also used in the bull 300W outdoor mobile power supply before, 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.
The charging head network learned that although the mobile power supply only supports 65W fast charging, the water core electronics M12266 itself supports a maximum of 100W fast charging input/output, and the charging efficiency is as high as 98%, and the chip has a built-in fast charging protocol controller, 16bit high-precision ADC, high-precision charging and discharging management and power counting, LED display driver and safety protection and other functions, and the periphery is minimal, only one chip can solve the design problem of fast charging mobile power supply, suitable for a variety of high-power outdoor power supply, portable mobile power supply and other equipment.