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5

Schematic of STEVAL-ISB68WTX

5.1

Schematic of STEVAL-ISB68WTX

Figure 10. 

Schematic of STEVAL-ISB68WTX

1

2

220p

C5

AGND

AC1_COIL

AC1

AC2

VS

BOOT2

BOOT1

GND

AGND

1

2

2u2

C17

1

2

10u

C13

AGND

V1V8

VOUT

V5V0

BOOT

VRECT

G

PI

O

0

G

PI

O

1

IN

T

B

SD

A

SC

L

R

ST

B

SGND

SDA

SCL

INTB

RSTB

VOUT_F

PGND

PGND

AGND

SGND

GND

NTC

V1V8

2

1

D3

1

2

560R

R5

2

1

1N4448HLP

D1

1

2

10u

C14

1

2

100n

C15

1

2

10u

C9

1

2

10u

C10

1

2

10u

C11

1

2

100n

C12

1

2

10n

C18

1

2

22n

C20

1

2

680p

C21

1

2

10n

C19

1

2

47n

C6

1

2

47n

C7

VS

V5V0

V1V8

AC1_COIL

AC2

PC

B

gr

ou

nd

po

in

t

P4

AC1

1

TP1

V1V8

1

2

3

4

5

6

Header 6

P3

1

2

Header 2

P2

1

2

4u7

C16

SGND

1

2

JP3

1

2

JP2

1

2

JP1

1

2

5k1

R1

1

2

220k

R2

1

2

10k

R3

1

2

5k1

R4

1

2

4k7

R8

1

2

4k7

R7

1

2

4k7

R6

1

2

4n7

C8

COMM1

D8

CLAMP1

C8

BOOT1

E7

AC1

A6

AC1

B6

AC1

B7

AC1

A7

AC2

A2

AC2

A3

AC2

B2

AC2

B3

BOOT2

C1

CLAMP2

C7

COMM2

D7

VSSP

A1

VSSP

B1

VSSP

A8

VSSP

B8

VRECT

A4

VRECT

A5

VGATE

D1

VRECT

C3

VRECT

B5

VRECT

B4

BOOT

E8

IEXT

C2

V

SS

A

C

5

V

SS

A

D

3

V

SS

A

D

4

V

SS

A

D

5

V

SS

A

F6

V

SS

A

E

5

V

SS

A

F5

V

SS

A

G

6

V

SS

A

G

7

VOUT

D2

VOUT

E1

VOUT

E2

VOUT

E3

G

PI

O

0

H

2

G

PI

O

1

H

1

G

PI

O

2

J4

G

PI

O

3

J3

G

PI

O

4

J2

G

PI

O

5

J1

IN

T

B

J7

SD

A

J8

SC

L

H

8

R

ST

B

J6

B

O

O

T

SE

L

J5

D

FT

G

1

N

C

C

6

N

C

D

6

VS

F1

N

T

C

F8

VOUT

F2

V

SS

D

E

4

V

SS

D

F3

V

SS

D

F4

V

SS

D

H

3

V

SS

D

G

2

V

SS

D

G

3

V

SS

D

G

4

V

SS

A

C

4

V

SS

D

H

4

V

SS

D

H

5

V

SS

D

H

7

V

SS

D

H

6

V

5V

0

E

6

V

5V

0

F7

V1V8

G8

V1V8

G5

STWLC68

U1

SGND

1.5A

F1

2

1

D4

SGND

V5V0

GPIO0

GPIO1

2

1

SMAJ22A

D5

1

2

180R

L1

GND

BLM21SP181BH1

1

2

100n

C22

HE-RED

HE-BLUE

1

2

100n

C2

1

2

100n

C3

VRECT

VOUT

1

2

Header 2

P1

C

1

6

C

2

3

E

1

1

E

2

4

B2

5

B1

2

ADC114YUQ

Q1

2

1

N.M.

D2

1

TP2

1

TP3

1

TP4

1

TP5

1

TP6

1

TP7

1

TP8

VOUT_F

1

3

2

JP4

VBUS

1

D-

2

D+

3

ID

4

GND

5

Shield

Shell

J1

1

2

100n

C1

1

2

47n

C4

1

2

10k

R9

R

ST

B

UM2901

Schematic of        STEVAL-ISB68WTX

UM2901

 - 

Rev 1

page 11/18

Содержание STEVAL-ISB68WTX

Страница 1: ...ly With External USB to I2C bridge the user can monitor and control the STWLC68JRF chip with the STSW ISB68PRO Graphical User Interface GUI The STEVAL ISB68WTX includes several safety mechanisms provi...

Страница 2: ...rter On chip thermal management and protections over voltage over current over temperature Foreign Object Detection FOD supported 400 kHz I2C interface for communication with host system optional Exte...

Страница 3: ...set to 2900 Hz Control Error Packet time out max count set to 6 Following interrupts are enabled by default Over Temperature Protection Interrupt OTP Over Current Protection Interrupt OCP End of Power...

Страница 4: ...68WTX layout 2 2 Connection to USB I2C converter board Connect external USB converter board to P3 connector please ensure right connections for GND SDA SCL pins as shown in below picture UM2901 Connec...

Страница 5: ...hical User Interface running on a PC Three LEDs monitor the operation of the bridge D1 green indicates I2C bus activity D2 red indicates correct initialization of the U1 chip D3 yellow is a power on i...

Страница 6: ...ice monitor feature is enabled TX Ping is disabled when external TX is detected TX Control Error Packet CEP time out set to 800msecs Frequency HOP frequency used in case of ASK modulation failure is s...

Страница 7: ...ferred by the coil by modulating the frequency duty cycle or amplitude of the PWM voltage on the transmitting coil Figure 6 Functional description 3 1 Power conversion The power transmitter design use...

Страница 8: ...r required optimize the efficiency by properly adjusting the operating point and guarantee reliability by monitoring and protecting the device 3 3 ASK demodulation Using ASK modulation the receiver se...

Страница 9: ...The FOD detection is enabled by setting TX_FOD_EN bit to 1 in register 0x0021h The AUTO FOD detection threshold can be set in AUTO_FOD_THR register 0x00EBh FOD is detected when abs PTX PRX TX_AUTO_FO...

Страница 10: ...4 Component Layout Figure 9 Component layout UM2901 Component Layout UM2901 Rev 1 page 10 18...

Страница 11: ...B7 AC1 A7 AC2 A2 AC2 A3 AC2 B2 AC2 B3 BOOT2 C1 CLAMP2 C7 COMM2 D7 VSSP A1 VSSP B1 VSSP A8 VSSP B8 VRECT A4 VRECT A5 VGATE D1 VRECT C3 VRECT B5 VRECT B4 BOOT E8 IEXT C2 VSSA C5 VSSA D3 VSSA D4 VSSA D5...

Страница 12: ...2 D 3 ID 4 GND 5 Shield Shell P1 MicroUSB VBUS VDD VDD GND 100nF C1 2 2uF C3 GND GND VBUS 1uF C2 GND VDD VIN 1 INHIBIT 3 NC 4 VOUT 5 GND 2 U2 LD2981 220R R7 D1 LED VDD D2 LED 220R R6 D3 LED 470R R5 GN...

Страница 13: ...Filtering capacitor C12 C22 C15 100nF 50V Murata GCM155R71H104KE02D Filtering Capacitors C16 4 7uF 25V Murata GRM155R61A475MEAAD Filtering Capacitor C17 1uF 25V Murata GRM155R61E105KA12D Filtering ca...

Страница 14: ...Revision history Table 2 Document revision history Date Version Changes 14 Jul 2021 1 Initial release UM2901 UM2901 Rev 1 page 14 18...

Страница 15: ...figuration 6 3 Functional description 7 3 1 Power conversion 7 3 2 Communication and control 8 3 3 ASK demodulation 8 3 4 FOD 9 4 Component Layout 10 5 Schematic of STEVAL ISB68WTX 11 5 1 Schematic of...

Страница 16: ...List of tables Table 1 Bill of material for 2 5W TX 13 Table 2 Document revision history 14 UM2901 List of tables UM2901 Rev 1 page 16 18...

Страница 17: ...VAL ISB68WTX and USB I2C converter 5 Figure 5 USB to I2C converter 5 Figure 6 Functional description 7 Figure 7 Power conversation 8 Figure 8 ASK demodulation circuit 9 Figure 9 Component layout 10 Fi...

Страница 18: ...ts and ST assumes no liability for application assistance or the design of Purchasers products No license express or implied to any intellectual property right is granted by ST herein Resale of ST pro...

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