Recently, the mobile power market has been favored by multiple factors, and the market has grown strongly, becoming the first category for many 3C accessories to recover and break through. At the same time, the global travel market is gradually recovering, and the switch to USB-C port for iPhones has also become a hot topic. In terms of technology, breakthroughs have also been made in the energy density and discharge rate of battery cells, and the integration of mobile power supply chips has reached a new height. The power of some power banks has exceeded 140W, or even higher.
However, despite significant advances in technology, there are still some difficulties in achieving such high power in the real-world experience. First of all, the popularity of high-power power banks is not high, because supporting this level of power requires the use of the latest equipment. At present, people's mobile devices generally have excess performance and are rarely replaced when necessary, which makes the application of high-power charging treasure in the market subject to certain restrictions. Secondly, the inconsistency of the protocol is also a problem, and there is no guarantee that every mobile phone can be perfectly matched with these high-power power banks. In addition, the power bank with a power of more than 140W also has problems such as high cost and high calorific value.
Therefore, the 20-40W large-capacity power bank on the current market has become the most common and market-oriented choice. These charging treasures can not only meet the charging needs of general users, but also be relatively close to the people, and easier to promote and popularize. In the future, with the further development of mobile device technology and changes in market demand, high-power power banks may gradually become the mainstream, but at this stage, medium and low-power large-capacity power banks are still the most popular choice in the market.
The charging head network learned that Shuixin Electronics has launched a special digital power SOC chip suitable for 2 strings of single-channel 35W power banks, which is compatible with a variety of mainstream fast charging protocols on the market, and can form a 35W multi-port mobile power supply with a minimalist peripheral circuit.
The M12229H is a single-channel PD3 for 2-string cells0 dedicated digital power SOC chip for mobile power application, suitable for 2 strings of single-channel 35W power bank, built-in buck-boost control circuit, with a maximum switching frequency of 1MHz, can quickly respond to current changes in a short time, thereby greatly reducing the loss of power and improving the efficiency of power supply, the highest charge and discharge efficiency is as high as 97%.
M12229H supports 42v/4.25v/4.3v/4.4v/4.45V multiple cell specifications, support charging current adaptation, can intelligently adjust the charging current according to the battery specifications, the maximum charging current can reach 3A, the discharge voltage accuracy is 10mV, and the charging current accuracy is 5mA, providing more refined management for battery charging. The M12229H supports various combinations of ABCL ports, supports dual C ports, and provides flexible interface configuration options to meet the needs of different application scenarios.
The M12229H supports PD30/pps、qc3.0、afc、fcp、scp、bc1.2 DCP and other mainstream fast charging protocols, built-in loop compensation circuit, built-in 16bit high-precision ADC, integrated fast charging protocol controller, battery charge and discharge management module, LED display driver module, fuel metering module and other functional units, at the same time provide over-voltage, under-voltage, over-charge and over-discharge, over-current, over-temperature, output short-circuit protection and other complete protection functions to ensure the safe operation of the equipment in various situations.
The M12229H 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 multiple charging modes, including trickle, constant, and constant voltage charging, providing a flexible and reliable charging solution.
The M12229H is available in QFN-40 package, which can be used to form a 35W multi-port power bank with a minimalist peripheral circuit.
The M12229H is designed for 2-string cells with a single PD3The digital power SOC chip with 0 mobile power design supports a variety of cell specifications and charging methods. Built-in buck-boost control circuit, with a maximum switching frequency of 1MHz, power efficiency up to 97%. The chip is compatible with a variety of mainstream fast charging protocols on the market, and has built-in multi-function modules, including battery management, LED display, fuel gauging, etc., and provides comprehensive protection functions. Suitable for 35W multi-port power bank, it is available in a QFN-40 package with simple peripheral circuitry for a flexible and reliable power bank solution.