GaN USB PD Twin-C Charger Reference Design

The reference design for creating multi-port USB chargers that ship quick, dependable energy for all of your gadgets. Study the way it works and what it will possibly do.

As gadgets like smartphones, tablets, and laptops want sooner charging, Energy Supply (PD) expertise was created to supply the quickest charging by USB Sort-C (USB-C) cables. USB PD can ship as much as 100 W of energy by a USB-C cable, permitting common AC-DC adapters to have a number of USB-C ports to cost completely different gadgets like smartphones, gaming laptops, energy instruments, and e-bikes. Nonetheless, assembly the demand for extra energy and varied ports will be difficult for present designs. Elements like electromagnetic compatibility, energy effectivity, and standby energy should be managed fastidiously. To make this simpler, Infineon gives the REF_65W_2C_GAN_PAG1 reference design.

Design engineers can use this reference design to develop chargers that assist a number of gadgets concurrently, guaranteeing compliance with power effectivity requirements like DOE Stage VI. Moreover, the design’s compact type issue and excessive energy density enable small, moveable chargers to be created with out sacrificing efficiency. By leveraging this reference design, engineers can prototype, take a look at, and speed up the event of dependable, high-performance charging options, finally saving time and decreasing design complexity.

The design is optimized for USB-PD multi-port charger purposes, providing a large enter vary with output voltages from 3.3 V to 21 V. Every USB-C port can ship 65 W of energy, and the overall output from each USB-C ports will be dynamically shared as much as 65 W, relying on the linked gadgets.

The design gives a high-efficiency QR flyback charger adapter with peak effectivity exceeding 93%, offering glorious efficiency. It permits for easy and versatile customization, making it adaptable to varied wants. Moreover, its excessive stage of integration permits a compact type issue, supporting charger designs with excessive energy density.

This reference design has two USB-C ports, every able to delivering 65 W of energy, with a complete output of 65 W that may be shared between the ports relying on the linked gadgets. It really works with a large enter voltage vary of 90-264 VAC at 50-60 Hz. A wise load-sharing function ensures environment friendly charging throughout each ports. The design features a high-efficiency ATQ transformer and makes use of two controllers.

This design makes use of Infineon’s EZ-PD PAG1P/PAG1S controllers as the first and secondary controllers, an EZ-PD CCG7DC controller for managing PD and DCDC, CoolGaN 600 V GIT HEMTs as the principle swap, OptiMOS N-channel MOSFET for the SR swap, OptiMOS 6 for the DCDC swap, and a BSZ0902NS OptiMOS for the VBUS swap. The board measures 56 mm x 27 mm x 33 mm and has an influence density of 21.34 W/in³. It additionally options the ATQ transformer, which gives excessive effectivity with a peak efficiency of over 92% at full load.

Infineon has examined this reference design. It comes with a invoice of supplies (BOM), schematics, meeting drawing, printed circuit board (PCB) format, and extra. The corporate’s web site has further knowledge concerning the reference design. To learn extra about this reference design, click on right here.