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What Is the Difference between Cypress's USB-PD 2.0 and Qualcomm's QC?
- May 09, 2018 -


USB-PD 2.0 is a protocol developed by USB-IF to provide a power supply mechanism between USB devices up to 100W (20V, 5A), and supports both USB and non-USB data on USB Type-C ports. signal. It allows the Host and the peripheral to dynamically negotiate the power supply direction.

Qualcomm® Quick ChargeTM, a proprietary charging protocol developed by Qualcomm, uses a custom charger that supports the Qualcomm Quick Charge protocol to charge devices that also support the protocol. Quick Charge 2.0 provides up to 60W of power, but unlike USB-PD, it does not support power and data transmission at the same time, nor does it support dynamic selection of power supply direction during charging.