The reference design for creating multi-port USB chargers that ship quick, dependable energy for all of your units. Be taught the way it works and what it could do.
As units like smartphones, tablets, and laptops want quicker charging, Energy Supply (PD) know-how was created to supply the quickest charging by way of USB Kind-C (USB-C) cables. USB PD can ship as much as 100 W of energy by way of a USB-C cable, permitting common AC-DC adapters to have a number of USB-C ports to cost totally different units like smartphones, gaming laptops, energy instruments, and e-bikes. Nonetheless, assembly the demand for extra energy and numerous ports could be difficult for present designs. Elements like electromagnetic compatibility, energy effectivity, and standby energy should be managed rigorously. To make this simpler, Infineon provides the REF_65W_2C_GAN_PAG1 reference design.
Design engineers can use this reference design to develop chargers that assist a number of units concurrently, making certain compliance with vitality effectivity requirements like DOE Degree VI. Moreover, the design’s compact kind issue and excessive energy density permit small, transportable 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 lowering design complexity.
The design is optimized for USB-PD multi-port charger functions, 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 could be dynamically shared as much as 65 W, relying on the related units.
The design provides 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 degree of integration permits a compact kind 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 related units. It really works with a large enter voltage vary of 90-264 VAC at 50-60 Hz. A sensible load-sharing characteristic 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) structure, and extra. The corporate’s web site has extra knowledge in regards to the reference design. To learn extra about this reference design, click on right here.
