High-Efficiency 65W USB-C Dual-Port Charger Reference Design with ATQ Transformer

High Efficiency 65W USB-C Dual Port Charger Reference Design with ATQ Transformer The reference design REF_65W_2C_GAN_PAG1 is developed for USB-PD multi-port charger applications with a wide input range and output voltage from 3.3V to 21V. Each USB-C port has an output power of 65W, while the total output power of the two USB-C ports is 65W, which can be dynamically shared based on the connected devices. It uses Infineon's EZ-PD™ PAG1P/PAG1S controllers as the primary and secondary controllers, EZ-PD™ CCG7DC controller as PD and DCDC controller, CoolGaN™ 600 V GIT HEMT as the main switch, OptiMOS™ N-channel MOSFET as the SR switch, OptiMOS™ 6 as the DCDC switch, and BSZ0902NS OptiMOS™ as the VBUS switch. The board has a size of 56 mm × 27 mm × 33 mm and a power density of 21.34 W/in³. The board meets the efficiency requirements of the US Department of Energy Level VI. This design features an ATQ transformer, providing high efficiency operation at full load, peaking at 92+%. REF_65W_2C_GAN_PAG1 Available on request, please contact us here to make a request or for more information. Features Dual USB-C 65W, universal input voltage range 90-264 VAC, 50-60 Hz Each USB-C port delivers 65W of output power, with a total output power of 65W that can be dynamically shared based on the connected device. Patented dynamic load sharing algorithm enables a smart user experience for multi-port charging ATQ transformer enables high efficiency system design Integrates EZ-PD™ PAGx and EZ-PD™ CCG7DC 56 mm x 27 mm x 33 mm board size, with a power density of 21.34 W/in³. Benefits High efficiency QR flyback charger adapter solution with >93% peak efficiency. Simple and flexible customization Small size, high integration, enables high power density charger design Component List Primary Start-up Controller: CYPAP111A3-10SXQ - EZ-PD™ PAG1P Secondary SR and PWM Controller: CYPAS111A1-24LQXQ - EZ-PD™ PAG1S Dual-Channel PD and Buck Controller: CYPD7271-LQXQ - EZ-PD™ CCG7DC Primary PWM Controller: CYPAP111A3-10SXQ - EZ-PD™ PAG1P Primary Switch: IGLD60R190D1 - CoolGaN™ GIT HEMT Secondary SR MOSFET: BSC077N12NS3 - OptiMOS™ N-Channel MOSFET Secondary DCDC Switch: BSZ063N04LS6 - OptiMOS™ 6 N-Channel MOSFET VBUS Switch: BSZ0902NS - OptiMOS™ N-channel MOSFETs for ESD protection of USB-C connector interfaces: ESD245 and ESD253 Potential applications USB-C chargers