Cypress EZ-PD CY4533 Manual - Halaman 8

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Halaman Cetak

REFDES

Component

8-pin GPIO, I2C and FLIP Header

D1, D2

Fault and Power LEDs

"DC_OUT" Terminal Block

2.2 BCR System Overview

All powered electronic devices need a power source to operate normally or to charge their battery. Such devices often have

a barrel receptacle connector and a corresponding DC barrel power adapter to supply power.

Figure 2-2

is an example of one such combination.

Such electronic devices usually require a specific voltage and current output from the power adapter. To satisfy this, the DC

barrel adapter's plug is often custom-made for a device.

USB was the first connector to introduce a standard method of supplying 7.5W power at 5V to electronic devices. A device

with a USB Micro-B connector can use a standard USB charger that can also be used with other devices with Micro-B ports.

USB Type-C extends this approach for devices that consume up to 100W of power.

The EZ-PD BCR controller makes the transition from DC barrel to USB Type-C easier by offering a plug-and-play approach

to power input design.

Figure 2-3. Newer Electronic Devices Powered by USB Type-C Power Adapters

The CY4533 EVK therefore has a USB Type-C connector on one end to negotiate power with Type-C power adapters. It has

a terminal block J3 to which any cable with a DC barrel plug can be connected. The EVK is therefore a converter between

USB Type-C and a DC Barrel plug.

CY4533 EZ-PD™ BCR Evaluation Kit Guide, Document Number: 002-25263 Rev. *B

I/Os from BCR exposed to an external controller. See

LEDs indicating system state. See

details.

Terminal block to measure output voltage of CY4533 BCR EVK or to connect any

external electronic load.

Figure 2-2. Typical Electronic Device and its DC Barrel Power Adapter

DEVICE

USB-C CABLE

Description

8-Pin I/O Header

FAULT LED and Safe 5V Load Switch

USB-C

CHARGER

AC SOCKET

Hardware

for details.

for