Evaluation Kit for Replacing Barrel Connectors with USB-Type C Connectors

August 08, 2019 by Paul Shepard

The CY4533 EZ-PD™ Barrel Connector Replacement (BCR) Evaluation Kit (EVK) is based on the BCR product in Cypress' USB Type-C and Power Delivery controllers. This EVK is intended to be an evaluation vehicle for applications that would want to consume power over a USB Type-C Connector.

A device, such as a speaker, shaver, power tools, modem etc. that use a barrel connector for power will benefit from using a universal power interface such as USB Type-C. To make the transition easier, the CY4533 EVK provides a USB Type-C receptacle to consume power from a charger and then supply it over a terminal block. A barrel connector can be attached to this block using wires to convert a barrel input to USB Type-C.

EZ-PD™ BCR is Cypress' highly-integrated USB Type-C port controller targeting electronic devices that have legacy barrel connectors (up to 100W) or USB micro-B connectors for power such as drones, smart speakers, power tools, and other rechargeable devices.

EZ-PD BCR complies with the latest USB Type-C and USB Power Delivery (PD) standards and enables users to quickly convert their devices from being powered through a barrel connector to being powered via the USB-C connector with few external components and no firmware development is required.

EZ-PD BCR based Application Diagram (for Electronic Systems Requiring 12V to 15V Input at 2A)

EZ-PD BCR integrates a complete USB Type-C transceiver, USB PD policy manager, a load switch controller with a soft start, all termination resistors required for a USB Type-C port, and system-level ESD protection. It is available in a 24-pin QFN package.


  • USB Type-C and USB-PD Support
    • Supports USB PD3.0 Version 1.1 Spec including Programmable Power Supply Mode
    • Configurable resistor RD
    • Supports one USB Type-C port
  • Legacy Charging Sink Block
    • Supports Apple charging 2.4A, USB BC 1.2
    • Integrates all required terminations on D+/D- lines
  • System-Level Fault Protection
    • VBUS to CC Short Protection
    • On-chip overvoltage protection (OVP)
  • Clocks and Oscillators
    • Integrated oscillator eliminating the need for external clock
  • Power
    • 0-V to 24.5-V operation (30-V tolerant)
  • System-Level ESD Protection
    • On CC, VBUS_IN, DC_OUT, D+, D-, HPI_SDA and HPI_SCL pins
    • ± 8-kV contact discharge and ±15-kV air gap discharge based on IEC61000-4-2 level 4C
  • Packages
    • 24-pin QFN package
    • Supports extended industrial temperature range (-40°C to +105°C)