Qorvo and Cypress Components Create USB-C Charging Reference Design

December 19, 2019 by Paul Shepard

Global authorized distributor Mouser Electronics, Inc. presents a new USB-C charging hub reference design from Qorvo and Cypress Semiconductor to help engineers speed their design and development time. The reference design includes the Qorvo ACT4751 dc-dc buck converter and a Cypress EZ-PD™ CCG3PA USB Type-C and Power Delivery (PD) controller.

The products and reference design support applications such as PC and tablet power adapters, smartphone and mobile chargers, vehicle chargers, and power banks.

The Qorvo ACT4751 is a high-efficiency, synchronous step-down dc-dc converter with a wide 4.5V to 40V input range. The ACT4751 employs a proprietary control algorithm and controls two integrated 50mOhm MOSFETs to achieve very high efficiency and enable extremely compact designs.

The Cypress EZ-PD CCG3PA controller supports USB-C power source and dual-role power source/sink. Additionally, the controller fully supports the USB PD 3.0 Programmable Power Supply (PPS) specification, which allows smartphones to communicate with the charger to determine the ideal voltage and current levels. The controller's Quick Charge 4 certification also incorporates improved safety features to ensure fast charging without overheating.

Together, the ACT4751 converter and CCG3PA controller form the basis of a USB-C/USB-A charging power hub reference design. The solution is a receptacle-based Type-C power adapter that supports a maximum power profile of 80W (20V / 4A), along with a legacy Type-A port with a maximum output of 60W (20V / 3A when activating Quick Charge 3).