Infineon EZ-PD CY4534 Скачать руководство пользователя

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User Guide

Please read the Important Notice and Warnings at the end of this document

002-34123 Rev. **

www.infineon.com

page 1 of 26

2021-10-21

CY4534 EZ-

PD™ barrel connector replacement

plus (BCR-PLUS) evaluation kit guide

About this document

Scope and purpose

The CY4534 EZ-

PD™

barrel connector replacement plus (BCR-PLUS) evaluation kit (EVK) is based on the

CYPD3176 device which is part of the BCR product family of Infineon

’s

USB Type-C and power delivery

controllers. This document serves as the user guide for this CY4534 EZ-PD

™

BCR-PLUS EVK.

Intended audience

This EVK is primarily intended for Infineon

’s

USB Type-C customers who want an evaluation platform to replace

an existing barrel/power input connector with a USB-C connector.

Abbreviations and definitions

Table 1

Abbreviations

Abbreviation

Definition

AFC

adaptive fast charging

battery charging

BCR

barrel connector replacement

configuration channel

CCG

cable controller generation

DFP

downstream facing port

DNP

do not populate

embedded controller

EMCA

electronically marked cable assembly

ESD

electrostatic discharge

EVK

evaluation kit

FET

field-effect transistor

GPIO

general-purpose input/ output

HPI

host processor interface

integrated circuit

inter-integrated circuit

LED

light-emitting diode

not applicable

OVP

over voltage protection

power adapter

power delivery

PDO

power data object

PFET

P-channel field effect transistor

Содержание EZ-PD CY4534

Страница 1: ...Type C customers who want an evaluation platform to replace an existing barrel power input connector with a USB C connector Abbreviations and definitions Table 1 Abbreviations Abbreviation Definition AFC adaptive fast charging BC battery charging BCR barrel connector replacement CC configuration channel CCG cable controller generation DFP downstream facing port DNP do not populate EC embedded cont...

Страница 2: ...PLUS evaluation kit guide About this document Abbreviation Definition PSoC programmable system on chip QC Qualcomm quick charge SDK software development kit SoC system on chip UFP upstream facing port USB universal serial bus USB PD universal serial bus power delivery UVP under voltage protection ...

Страница 3: ...rge without detection Permanent damage may occur to devices subjected to high energy discharges Proper ESD precautions are recommended to avoid performance degradation or loss of functionality Store unused boards in the protective shipping package End of life product recycling The end of life cycle for this kit is five years from the date of manufacture mentioned on the back of the box Contact the...

Страница 4: ...2 3 3 VBUS voltage and current selectors 11 2 3 4 Fault LED and VBUS powered LED 13 2 3 5 Alternate power source selection jumper 13 2 3 6 External host processor interface HPI connection header 14 2 3 7 Legacy charging mode selection jumper 14 2 4 Changing the VBUS voltage and current requested from the power adapter 15 3 Kit operation 16 3 1 External hardware required for demos 16 3 2 Running th...

Страница 5: ...ype C The CY4534 EZ PD BCR PLUS EVK ships with pre programmed firmware with functionality as documented in the CYPD3176 device datasheet As an additional option customers who prefer further customization of the BCR PLUS firmware solution can make changes to the configuration parameters using the EZ PD configuration utility to fit the needs of their end application 1 1 Kit contents CY4534 EZ PD BCR...

Страница 6: ... webpage Table 2 A brief list of components in the CY4534 EZ PD BCR PLUS EVK REFDES Component Description U3 EZ PD BCR PLUS controller Barrel connector replacement controller plus i e CYPD3176 24LQXQ device referred to as BCR PLUS through this document This part manages the USB Type C port and controls the load switch PFET U2 USB I2C bridge controller Infineon s USB serial part CY7C65211 24LTXI is...

Страница 7: ...t LED and VBUS powered LED for details Q1 PFET as a main 5 A load switch A back to back PMOSFET used as a 5 A load switch that isolates the system power from VBUS See DC power transfer system for details Q2 PFET as a safe 5 V 1 A load switch A back to back PMOSFET used as a safe 5 V 1A load switch enabled when the PD contract defaults to 5 V due to mismatching capabilities See section EVK behavior...

Страница 8: ...onnector 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 100 W of power The EZ PD BCR PLUS controller device makes the transition from DC barrel connector to USB Type C connector easier by offering a plug and play approach to power input design DEVICE USB C CABLE USB C CHARGER AC SOCKET Figur...

Страница 9: ...ure 5 shows the block diagram of the CY4534 EZ PD BCR PLUS EVK board Figure 5 CY4534 EZ PD BCR PLUS EVK board block diagram The EZ PD BCR PLUS controller is a new device in the USB Type C family for barrel connector replacement BCR applications This device combines a certified USB Type C rev 1 2 and power delivery rev 3 0 subsystem high voltage analog for protection sink side overcurrent protectio...

Страница 10: ...vailability of VBUS and a red LED LED2 to indicate a fault with the expected output 2 3 1 EZ PD BCR PLUS controller features Fixed function USB Type C and power delivery controller supporting USB PD Rev 3 and Type C Rev 1 2 Integrated precision Rd and dead battery Rd termination resistors Integrated regulator to power from VBUS Supports a high voltage P MOSFET gate driver with slew rate control Su...

Страница 11: ...e evaluated can be connected and powered via this block 2 3 3 VBUS voltage and current selectors Figure 7 shows the voltage and current resistor divider networks of the EVK board The voltage and current ranges that the BCR PLUS device will negotiate with the USB Type C power adapter are determined by this set of resistor dividers Figure 7 Four resistor dividers that select the VBUS voltage and cur...

Страница 12: ...e maximum current is set to 900 mA See Table 4 and Table 5 for a complete list of the pull up and pull down resistor values for the resistor dividers on ISNK_COARSE and ISNK_FINE respectively For scenarios where the operating current value ISNK is greater than 5 A i e ISNK_COARSE ISNK_FINE 5 A the BCR PLUS device will limit the operating current ISNK value to 5 A Table 4 Resistor divider values fo...

Страница 13: ...r is outside expected limits The load draws more current than the expected current threshold when Sink OCP is enabled using the EZ PD configuration utility The sink device temperature measured by an external thermistor exceeds the programmed threshold only when OTP is enabled using the EZ PD configuration utility 2 3 5 Alternate power source selection jumper Figure 9 Alternate power selection jump...

Страница 14: ...d HPI_SDA of the EVK are exposed on external HPI connection headers pin 2 of J8 pin 2 of J9 with an internal 2 kΩ resistor pulled up to V3P3 An external embedded controller EC can connect to these pins directly and communicate to the BCR PLUS device using the EZ PD BCR PLUS HPI protocol The BCR PLUS appears as an I2 C slave with a 7 bit slave address of 0x08 Figure 10 External HPI connection heade...

Страница 15: ...igher than 5 V are needed by the system The capability matching algorithm works as follows 1 Loop through the power adapter s source PDOs from highest voltage first to find the first PDO that satisfies the following conditions a Source_PDO_Voltage VBUS_MIN b Source_PDO_Voltage VBUS_MAX c Source_PDO_Maximum _Current ISNK_COARSE ISNK_FINE 2 If all three conditions are satisfied the BCR PLUS device s...

Страница 16: ...or for Demo 1 Test with a multimeter and the EZ PD protocol analyzer A DC barrel power adapter for the electronic device for Demo 1 Test with a multimeter and the EZ PD protocol analyzer A 3 mm flat head screwdriver A wire stripper A USB micro B cable A multimeter to measure voltages for Demo 1 Test with a multimeter and the EZ PD protocol analyzer 3 2 Running the demos 3 2 1 Demo 1 Test with a mu...

Страница 17: ... PLUS device will request If that voltage is unavailable it looks for the next highest voltage and so on To test this perform the following steps on the demo setup 6 Set the VBUS_MAX rotary switch SW1 to position 1 Verify that the multimeter connected to the DC_OUT terminal J2 displays a voltage between 4 5 V and 5 5 V Detach the power adapter after this observation is verified Note that unlike th...

Страница 18: ...der to route the HPI signals HPI_SDA and HPI_SCL to the USB I2C bridge controller CY7C65211 U2 3 Connect the EVK s USB micro B connector J1 to your PC using a USB micro B cable 4 Ensure that the EZ PD configuration utility and the necessary drivers are installed on your PC See EZ PD configuration utility s web page for details 5 Launch the EZ PD configuration utility as shown in Figure 14 After in...

Страница 19: ... BCR configuration as shown in Figure 16 In the Power Selection option on the right side panel use the dropdown menu and change the option from Use BCR pins to Use configuration table as shown in Figure 16 This option allows the users to override the VBUS_MAX VBUS_MIN ISNK_COARSE and ISNK_FINE values set using the rotary switch SW1 or the resistor dividers and use the sink PDOs set in the configur...

Страница 20: ...efault configuration that you saved earlier 11 In the main menu select Tools Configure Devices A new window to configure the device will open as shown in Figure 18 12 In this window under Select Target select BCR_POWER_SINK Point to the configuration file cyacd file saved in the previous step 13 Click Program The EZ PD configuration utility will load the configuration file on to the BCR PLUS devic...

Страница 21: ...ower adapter will advertise a list of voltage and current combinations known as PDOs The BCR PLUS device will select the best PDO based on the sink capabilities from the configuration table Do the following steps on the demo setup to test this 1 Set the VBUS_MAX rotary switch SW1 to either of the positions 1 2 3 4 or 5 2 Verify using a multimeter that the output voltage on the terminal jack J2 is ...

Страница 22: ...t of rules described in Changing the VBUS voltage and current requested from the power adapter In other words the VBUS_MAX rotary switch governs the highest voltage that the BCR PLUS device will try to request with legacy charging support enabled If that voltage is unavailable it looks for the next available highest voltage and so on To test legacy charging support for all supported protocols BC1 ...

Страница 23: ...nly support a typical voltage of 5 V on VBUS 3 3 EVK behavior under mismatched capabilities If the attached USB Type C power adapter can supply a VBUS voltage within VBUS_MIN and VBUS_MAX limits the CY4534 EZ PD BCR PLUS EVK will turn the load switch ON to pass the voltage onto the DC_OUT terminal block J2 On the other hand if the attached power adapter does not have a matching voltage current com...

Страница 24: ...h as current rating to the Type C ports GND RX2p RX2n VBUS Dn CC SBU1 Dp VBUS TX1n TX1p GND GND TX2p TX2n VBUS SBU2 VCONN VBUS RX1n RX1p GND B1 B2 B3 B4 B5 B8 B9 B10 B11 B12 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 2 4mm 2 5mm GND RX2p RX2n VBUS Dn1 CC1 SBU1 Dp1 VBUS TX1n TX1p GND GND TX2p TX2n VBUS SBU2 CC2 VBUS RX1n RX1p GND B1 B2 B3 B4 B5 B8 B9 B10 B11 B12 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 D...

Страница 25: ...r Guide 25 of 26 002 34123 Rev 2021 10 21 CY4534 EZ PD barrel connector replacement plus BCR PLUS evaluation kit guide Revision history Revision history Date Version Description 2021 10 21 Initial release ...

Страница 26: ...ustomer s applications The data contained in this document is exclusively intended for technically trained staff It is the responsibility of customer s technical departments to evaluate the suitability of the product for the intended application and the completeness of the product information given in this document with respect to such application For further information on the product technology ...

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