140W PD3.1 DRP two-way fast charging solution debut- ChangZhou Sun-Rise Electronic

With the popularity of 100-watt chargers and mobile power supplies, high-power devices have also begun to use the USB Type-C interface for power supply, forming a complete ecosystem and accelerating the popularity of USB PD. But for high-performance computing devices, the 100W power provided by USB PD3.0 is not enough.

The latest USB PD3.1 standard solves this problem. The standard adds three sets of fixed voltage gears of 28V, 36V, and 48V, and the maximum power is increased to 240W. With the first release of Apple's 140W notebook fast charger that supports the PD3.1 protocol, the market's voice for 140W mobile power has increased.

Recently, the USB PD fast charging manufacturer Guangxin Microelectronics released a 140W PD3.1 bidirectional fast charging application reference design. This reference design motherboard supports a single 140W PD3.1 TYPE-C interface, and adopts the software and hardware architecture of TCPM+TCPC, which can expand multiple PD3.0/PD3.1 100W TYPE-C interfaces through daughter cards. Flexible cut.

Guangxinwei PD3.1 DRP reference design solution supports 6~7 series cell configuration, adopts full-stack PD DRP protocol, supports 5/9/15/20V @5A, 28V@5A, up to 140W PD3.1 DRP application, solution At the same time, it supports SPR PPS and EPR AVS, with flexible VDM message expansion capability and complete system charging and discharging power strategy.

The reference design scheme uses UM3506 PD+SoC controller chip with RISC-V core to realize PD3.1 protocol interaction, bidirectional BUCK-BOOST power chip management, system control and other functions.

Guangxinwei UM3506 has built-in high-performance 32-bit RISC-V microprocessor core and large-capacity Flash flash memory, SRAM memory, enhanced peripheral interface and rich system resources, and supports online upgrade.

Guangxinwei UM3506 uses a flexible and programmable architecture combining software and hardware, adopts TCPM/TCPC layered architecture internally, and integrates a native TCPC-like front-end module, including digital logic and analog for Type-C interface detection and control. circuits, packet BMC encoding and decoding in the PD PHY layer, and key functions with strict timing requirements in the PD protocol layer.

Guangxinwei PD3.1 DRP Demo supports power statistics, optional system status display (light display, LCD screen, etc.), supports TCPM + TCPC structure daughter card for expanding TYPE-C ports, the application circuit of the daughter card is as shown in the figure above Show.

Guangxinwei UM3506 chip is committed to the design concept of creating an open platform and differentiated applications. Designers can use the resources of the MCU on the chip more reasonably and effectively, simplify the design of differentiated application software, shorten the system development time, and better ensure The real-time and reliability of the system perfectly realize the application development of PD+MCU.

Performance measurement

After reading the above scheme introduction, let's take a look at the actual performance of the Guangxinwei PD3.1 DRP 140W reference design scheme.

Connect the terminal of Guangxinwei PD3.1 DRP 140W EVB to the DC source as a power supply device, and use Power-Z KM003C to read the PDO message, showing that it supports five sets of SPR fixed voltage gears of 5V3A, 9V3A, 15V3A, 20V5A , 3.3~21V5A group of PPS gears, 28V5A group of EPR fixed voltage gears, and 14~28V group of AVS gears.

Connect the USB-C port of Guangxinwei PD3.1 DRP 140W EVB to the 140W load, the output power is 28.54V 4.99A 142.51W, and the PD3.1 EPR 28V fast charge is successfully triggered.

Connect the terminal of Guangxinwei PD3.1 DRP 140W EVB to the analog battery, and connect the USB-C port to the Apple 140W GaN charger A2452, as a charging device, the input power is 132.31W, and the PD3.1 EPR 28V is successfully triggered Fast charge.

Summery

USB PD3.1 is a very ambitious standard upgrade, extending the application of USB PD from traditional mobile phones and laptops to portable devices, Internet of Things devices, smart homes, communications and security equipment, automobiles and medical care. USB PD will become a truly unified power supply standard, which will play an important role in promoting environmental protection of the earth, reducing electronic waste, and interconnecting everything.

ChangZhou Sun-Rise Electronic

Jackee Loo