The recently-launched Huawei 40W SuperCharger Power Bank unveiled a very interesting, state-of-the-art buck-boost controller, the brand new Richtek RT7885.

Huawei 40W SuperCharger Power Bank

Richtek RT7885
The RT7885 is a USB Power Delivery (USB PD) and Buck-Boost controller with highly integrated functions for USB power bank applications The controller is operated in peak current mode with programmable current limit and switching frequency. The RT7885 is designed to embed ARM Cortex™-M0 MCU so as to facilitate various functions of communication protocol, protections and customized requirements. The RT7885 has butt-in charge pumps for driving low-cost NMOS to control the power path. The IC provides the best USB PD solution for a power bank application and lowest count of external components.

Detailed specification of the Richtek RT7885.

From a simple diagram, we know that the RICHTEK RT7885 supports the fast charging protocol through traditional USB-A and Type-C ports, as well as built-in buck-boost controller and battery balance control.
According to sources, RICHTEK’s power management chip has been repeatedly entered into Huawei’s supply chain and is widely used in Huawei chargers, including Huawei MateBook D charger, Huawei MateBook 13 charger, Huawei 40W SuperCharge charger, Huawei 22.5W SCP super fast charger, etc. Its product performance has been recognized by Huawei and long-term verification of the market. Now, with the brand new RT7885, it helps Huawei’s power bank to achieve 40W super fast charging, which once again proves the R&D strength and excellent product performance of RICHTEK.
Richtek Technology Corporation is one of the world’s leading analog IC companies. The company consistently delivers inventive power management solutions that improve the performance of consumer electronics, computers, and communications equipment. Richtek adds value to end equipment by synthesizing technological innovation, uncompromised quality, and devotion to customer service. Founded in 1998, the Company is headquartered in Taiwan with additional offices in Asia, the U.S., and Europe.


Source: chongdiantou

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