The controller includes 128 kB flash memory that can store dual-firmware images for a fail-safe boot, increasing the reliability of the system, and it enables firmware updates in the field. The EZ-PD CCG4 controller integrates an ARM Cortex-M0 processor, along with the 128 kB flash memory, two 1W Vconn FETs (per port) that provide power to USB-C cables, and four ADCs that protect the system against overvoltage and overcurrent conditions. Integrated ESD protection circuits provide system-level protection up to 15 kV. CCG4 also contains four serial communication blocks, each of which can be configured to I ²C, SPI or UART serial protocols.
Ajay Srikrishna, vice president of the USB product line at Cypress, adds, “In addition to PCs, the field-upgradeable controllers also enable new multi-port usage models for power banks, monitors and docking stations.”
The USB Type-C standard is gaining rapid support with top-tier PC and electronics manufacturers by enabling slim industrial designs, easy-to-use connectors and cables, and the ability to transmit multiple protocols and deliver up to 100W of power. The USB Type-C standard’s 2.4-mm-high connector plug is significantly smaller than current 4.5-mm USB Standard-A connector. In addition to the transport of USB signals, DisplayPort and Thunderbolt signals can be delivered over the same connector via the USB Type-C standard’s Alternate Mode capability.
Cypress is now sampling the EZ-PD CCG4 controller in a 40-pin QFN package optimised for PCs and accessories. The CY4541 evaluation kit for CCG4 is available for pre-order now and will begin shipping in mid-January 2016. More information on Cypress’s USB power delivery solutions is available at www.cypress.com/Type-C