When it comes to multi-mouth fast charging chips, the first thing that Xiaobian thinks of is Zhirong. Yes, Zhirong has introduced a number of chips for the independent buck output of multi-port chargers. Many mainstream brands of multi-port chargers on the market will use Zhirong's synchronous buck and protocol function two-in-one chip, which is widely used.
Charging head network recently learned that Zhirong multi-port fast charging chip has once again won the favor of cross-border e-commerce brother Anker, and used Zhirong sw3516h chip in Anker's latest release of 65w dual-port super charge gallium nitride charger. Zhirong has once again successfully entered the fast charging supply chain of cross-border e-commerce giants and become the core supplier of the fast charging source product line of listed companies.
Zhirong's sw3516h is a synchronous buck controller that supports 1a1c dual interface, built-in 5a buck converter, independent current limiting when supporting dual output, single port support for up to 100w output, wide protocol support, and can be used in 65 to 100w pd fast charging.
Zhirong sw3516h supports usb pd3.0/pps, Qualcomm qc4+, Samsung afc, Huawei scp/fcp, pe and sfcp and other fast charging protocols. Support 100w pd output with dual-port fast charging logic. Only a small number of peripheral components such as step-down moss tubes and inductors are required to form a complete high-performance multi-protocol dual-port fast charging solution.
The sw3516h supports 40v input voltage, and the built-in synchronous buck converter can achieve a 5a high current output with two nmos switch tubes. The built-in buck converter operates at 125khz and operates at pfm at light loads and pwm at medium and heavy loads.
sw3516h support temperature protection function, when the chip temperature exceeds 120 °C, it will begin to reduce the output voltage, when the temperature exceeds 150 °C, the chip enters the overtemperature protection shutdown state, in addition to overtemperature protection, also support input overvoltage, input undervoltage, output overcurrent and output protection and other protection functions.
Zhirong sw3516h adopts qfn4*4-28 package, which is very small and space-saving. Can be used for multi-port pd charger, car charger, etc., simple peripheral components, convenient for use in a small space, for the device to add fast charging support. At the same time, Zhirong's synchronous buck converter supporting the fast charging protocol has been used by many well-known brands such as Greenlink, Nubia, Zhengtuo, Pinsheng, Asus, lenovo and so on.
Charging head net summary
Zhirong's buck chip supports pd and rich fast charge protocol, integrates the combination of traditional buck controller and protocol chip, two chips in one chip, completely realizes the step-down and fast charge functions, simplifies circuit components and output voltage debugging, simplifies circuit design, and reduces the number of components to achieve miniaturization design.
Thanks to the miniaturized design, it is convenient to add multiple output interfaces to the charger and support fast charging separately. Power blind plug can be realized, without deliberately remembering the maximum output power of each interface of the multi-port charger, which can make the device charge at the maximum power supported and facilitate use.