ST STEVAL-USBI2CFT Manuale utente

Introduction

The STEVAL-USBI2CFT is a versatile USB-I2C bridge for communication and programming of ST wireless charging IC, and

evaluation boards, with the STSW-WPSTUDIO software.

Figure 1. STEVAL-USBI2CFT

Versatile USB- I2C bridge for communication and programming of ST wireless

charging IC

UM3226

User manual

UM3226 - Rev 1 - September 2023

For further information contact your local STMicroelectronics sales office. www.st.com

1 Software installation

The STEVAL-USBI2CFT is based on the FT260Q, USB HID to I2C bus convertor. The FT260Q does not require

any additional software drivers.

The Windows operating system automatically installs the necessary driver after the first USB plug-in.

UM3226

Software installation

UM3226 - Rev 1 page 2/17

2 Hardware connection

Before starting the communication with a wireless receiver or transmitter, the dongles shall be correctly connected

to each other. Connect GND of bridge with GND of evaluation board, continue with connecting of SDA, SCL, and

INT.

The STEVAL-USBI2C board includes an internal level-shifter.

The voltage level can be changed soldering one of the soldering bridges.

The voltage can be set to 1.8, 2.5 or 3.3 V depending from what solder bridge was soldered.

Ensure that the target evaluation kit is connected to the USB-I2C bridge and the bridge is connected to the PC

with the STSW-WPSTUDIO software installed.

The STSW-WPSTUDIO can connect a maximum of two USB-I2C converters, allowing PTx and PRx to be

evaluated simultaneously.

Figure 2. STEVAL-USBI2CFT hardware connection with STEVAL-WLC98RX

UM3226

Hardware connection

UM3226 - Rev 1 page 3/17

Figure 3. STEVAL-USBI2CFT hardware connection

Table 1. List of supported WLC evaluation kit

Part number PRx/PTx Description

STEVAL-WBC86TX PTx 5 W PTx for general application

STEVAL-WLC98RX PRx Up to 50 W application

STEVAL-WLC38RX PRx 5/15 W PRx for general application

STEVAL-WLC99RX PRx Up to 70 W application

UM3226

Hardware connection

UM3226 - Rev 1 page 4/17

3 Interface description

The STSW-WPSTUDIO main interface consists of three main sections: the top menu, the side menu bar, and the

output window.

The side menu bar selects the output in the output window.

Figure 4. STSW-WPSTUDIO main interface

Connect the wireless receiver or transmitter to GUI. Select the correct device on the evaluation board.

Figure 5. Connection

UM3226

Interface description

UM3226 - Rev 1 page 5/17

The evaluation board was correctly connected to GUI.

Figure 6. Confirmed connection

The wireless receiver or transmitter setup is now ready to use. For the detail information about configuration,

possibilities and features, follow the User Manual of the selected Wireless receiver or transmitter board.

UM3226

Interface description

UM3226 - Rev 1 page 6/17

4 Component layout

Figure 7. STEVAL-USBI2CFT PCB layout

Figure 8. STEVAL-USBI2CFT top layout

UM3226

Component layout

UM3226 - Rev 1 page 7/17

Figure 9. STEVAL-USBI2CFT bottom layout

UM3226

Component layout

UM3226 - Rev 1 page 8/17

5 Schematic diagrams

Figure 10. STEVAL-USBI2CFT circuit schematic

STEST_RESETIN

RESETIN

VBUS_DET

AGND

GND

VCCIN 23

VOUT3V3 22

VCCIO 6

DIO5/SCL 12

DIO6/SDA 13

DIO8/INT 15

DIO1/RTS 8

DIO2/CTS 9

DIO3/RXD 10

DIO4/TXD 11

DIO0 7

DIO9 16

DIO10 17

DIO11 18

DIO13 28

DIO7 14

DCNF0

DCNF1

DIO12 27

FSOURCE

DEBUGGER

FT260Q

47pF

1 2

33R R2

47pF

1 2

33RR1

1 2

5k1

1 2

5k1

GND GND

GND

VBUS

100pF

1 2

GND

VBUS

4u7

100n

4u7

100n

4u7

100n

GND GND GND

VOUT3V3

VCCIO

OUT 5

GND

BYP 4

U3 LDK120M-R

2u2

C11

GND

VCCIO 1 21k0

R16

1 2

2k0

R17

1 2

1k33

R18

1 2

620R

R19

1 2

390R

R20

JP2

JP3

JP4

1 2

N.M.

1 2

N.M.

1 2

4k7

1 2

10k

R10

1 2

4k7

R11

4u7

C10

GND

1 2

5k1

VBUS

STEST_RESETN

RESETN

DCNF0

DCNF1

DEBUGGER

SCL

SDA

INT

RTS

CTS

RXD

TXD

GND

GND GND

D Schottky

VBUS

SDA

SCL

INT

VCCIO

DIO11

DIO12

VCCIO

VBUS

VOUT3V3

VCCIO

RESETN

STEST_RESETN

DCNF1

DCNF0

DEBUGGER

TXD

RXD

CTS

RTS

VOUT3V3

VBUS

Header 6

1 2

4k7

R14

1 2

4k7

R15

VCCIO

JP1

SCL

SDA

1 2

4k7

R13

INT

1.8V

2.5V

3.3V

GND A1

GND B12

VBUS A4

CC1 A5

DP1 A6

DN1 A7

SBU1 A8

VBUS A9

GND A12

VBUS B9

SBU2 B8

DN2 B7

DP2 B6

CC2 B5

VBUS B4

GND B1

SHELL SHELL

SHELL

SHELL SHELL

SHELL

629722000214

RED

1 2

4k7

R12

PWR

VBUS

GND

DIO10

VCCIO

GND

1 2

N.M.

R22

1 2

N.M.

R21

JP5

I/O1

GND

I/O2

3I/O2 4

VBUS 5

I/O1 6

USBLC6-2SC6

VBUS

GND

UM3226 - Rev 1 page 9/17

UM3226

Schematic diagrams

6 Bill of materials

Table 2. STEVAL-USBI2CFT bill of materials

Item Q.ty Ref. Part/value Description Manufacturer Order code

1 2 6 R9, R11, R12,

R13, R14, R15 4k7 Vishay/Dale CRCW06034K70JNEC

2 3 4 C1, C3, C5,

C10 4u7 Wurth 885012106012

3 4 3 C2, C4, C6 100n Wurth 885012206071

4 5 3 R3, R4, R5 5k1 Vishay/Dale CRCW06035K10FKEAC

5 6 2 C7, C8 47pF Wurth 885012006055

6 9 2 R1, R2 33R Vishay/Dale CRCW060333R0JNEB

7 12 1 C9 100pF Wurth 885012206077

8 13 1 C11 2u2 Wurth 885012106011

9 14 1 D1 Wurth 150060RS75000

10 15 1 D2 ST STPS1L60ZF

11 16 1 J1 Wurth 629722000214

12 18 1 P1 Wurth 61300611021

13 19 1 R6 1M Vishay/Dale CRCW06031M00JNEB

14 20 1 R10 10k Vishay/Dale CRCW060310K0JNEAC

15 21 1 R16 1k0 Vishay/Dale CRCW06031K00JNEC

16 22 1 R17 2k0 Vishay/Dale CRCW06032K00JNEAC

17 23 1 R18 1k33 Vishay/Dale CRCW06031K33FKEA

18 24 1 R19 620R Vishay/Dale CRCW0603620RFKEAC

19 25 1 R20 390R Wishay/Dale CRCW0603390RFKEAC

20 26 1 U1 FTDI FT260Q-T

21 27 1 U2 ST USBLC6-2SC6

22 28 1 U3 ST LDK120M-R

UM3226

Bill of materials

UM3226 - Rev 1 page 10/17

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