STMicroelectronics STREF-SCS001V1 User manual

Brand: STMicroelectronics

Model: STREF-SCS001V1

Type: User manual

STMicroelectronics STREF-SCS001V1 is a reference design that allows you to create a USB Type-C connector quickly and easily in order to power any application up to 100 W (20 V, 5 A). The status LED indicates the operating status of the STUSB4500 and USB PD port.

The USB PD port is pre-configured with the following default voltage values:

PDO1: 5 V / 1.5A
PDO2: 15 V / 1.5A
PDO3: 20 V / 1.0A

You can use the STREF-SCS001V1 to power a wide range of devices, including laptops, smartphones, and tablets. The device is also compatible with the USB Power Delivery 3.0 specification, which allows for fast charging of compatible devices.

The USB PD port is pre-configured with the following default voltage values:

PDO1: 5 V / 1.5A
PDO2: 15 V / 1.5A
PDO3: 20 V / 1.0A

Introduction

The STREF-SCS001V1 reference design lets you create a USB Type-C connector quickly and easily in order to power any

application up to 100 W (20 V, 5 A).

The status LED indicates the operating status of the STUSB4500 and USB PD port.

The USB PD port is pre-configured with the following default voltage values:

• PDO1: 5 V / 1.5A

• PDO2: 15 V / 1.5A

• PDO3: 20 V / 1.0A

Figure 1. STREF-SCS001V1 board photo

Fast and easy migration from DC barrel to Type-C

UM2533

User manual

UM2533 - Rev 1 - January 2019

For further information contact your local STMicroelectronics sales office.

www.st.com

1Functional diagram

Figure 2. STREF-SCS001V1 functional diagram

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Functional diagram

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2Getting started

The Type-C port is managed by the STUSB4500 in fully autonomous mode. When a connection is detected, the

load device (VSNK) is connected to VBUS power by the PMOS controlled by the STUSB4500 device.

When attached to a Type-C / Power Delivery source, the STUSB4500 negotiates voltage according to the

following priority list:

• 20 V / 1.0 A (PDO3 : preferred)

• 15 V / 1.5 A (PDO2)

• 5 V / 1.5 A (PDO1 : default)

A status LED indicates the voltage present on the VSNK:

• Light blue = 5 V

• Pink = PDO2 / 15 V

• Bright blue = 20 V

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Getting started

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3Schematic diagram

Figure 3. STREF-SCS001V1 schematic

B3 21

1µF

VSNK

Tx-2

Disch

CC1

STUSB4500

Addr0

Vbus

Rx-1

D11

100

VReg_2V7

ESDA25P35

B12

CC1

VCONN

Disch

Vsnk

Vbus

CC1

B10

Rx+1

D+1

TP3

22k

CC2

TP1

SCL

Tx+1

TP10

R10

Tx+2

TYPE C

D-1

CC2

D-2

VSYS

VDD

100nF

Power_OK3

GPIO

USB 3.1

CC2DB

R12

R11

Rx+2

ESDA25W

ESDA25P35

D50

Sbu2

TP14

Standalone USB PD controller

with SINK auto-run mode

CC1DB

Sbu1

SCL

100k

R20

22k

A10

GND

SDA

Vbus

1µF

Vsnk

C50

CC2

B11

SDA

Vbus

CC2

Tx-1

A12

2V7

VBUS_VS_Disch

ALERT#

C12

R21

LD20

22k

13 Addr1

GND

Rx-2

GPIO

Power_PDO3

Power_PDO2

A_B_Side

SCL

Attach

SDA

ExpPAD

Power_OK2

A_B_Side

Vbus

Alert#

TP13

CC1

A11

2V7

GND

TP12

Attach

TP2

VReg_1V2

GND

Reset

TP4

TP11

VBus_EN_SNK

D+2

STL6P3LLH6

CC1

J10

Vbus

4.7µF

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Schematic diagram

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4Bill of material

Item Q.ty Ref. Value Package Manufacturer Order code

1 2 C1, C2 1µF Capacitor 1µF X5R

6V3 20% 0402 Würth Elektronik 885012105006

2 1 C12 100nF

Capacitor 100nF

X5R 25V 20%

0402

Würth Elektronik 885012105018

3 1 C50 4.7µF

Capacitor 4.7µF

X7R 25V 20%

0805

Würth Elektronik 885012107018

4 1 D1 25V TRANSIL

SOT323

Dual Transil Array

For ESD Protection

in SOT323 Vbr =

25V

ST ESDA25W

5 2 D11, D50 22V

High power

transient voltage

suppressor Vbr =

24.6

ST ESDA25P35-1U1M

6 1 J1

USB 3.1 Type C

Receptacle

Horizontal THR

WR-COM 1.6mm

PCB thickness

Würth Elektronik 632723300011

7 1 J10

2 way PCB vertical

mount SCREW

terminal, 2.54mm

Würth Elektronik 691210910002

8 1 LD20 RGB Led 1.6 x 1.6

mm Diffused Würth Elektronik 150066M153000

9 2 R1, R2 1k ±5% 0603 SMD resistor

10 1 R10 100k ±5% 0402 SMD resistor

11 3 R11, R20, R21 22k ±5% 0402 SMD resistor

12 1 R12 100 ±5% 0402 SMD resistor

13 1 T1 STL6P3LLH6

P-channel 30 V,

0.024 Ω typ., 6 A

STripFET H6

Power MOSFET in

a PowerFLAT 3.3 x

3.3 package

ST STL6P3LLH6

14 1 U1 STUSB4500

Standalone USB

PD controller with

SINK auto-run

mode in QFN24

4x4mm

ST STUSB4500QTR

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Bill of material

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5Board layout

Figure 4. STREF-SCS001V1: Dimensions

Figure 5. STREF-SCS001V1: Drill guide

Figure 6. STREF-SCS001V1: Top layer

Figure 7. STREF-SCS001V1: Bottom layer

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Board layout

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Figure 8. STREF-SCS001V1: Top silkscreen

Figure 9. STREF-SCS001V1: Bottom silkscreen

Figure 10. STREF-SCS001V1: Top solder resist

Figure 11. STREF-SCS001V1: Bottom solder resist

Figure 12. STREF-SCS001V1: Top solder paste

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Board layout

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Figure 13. STREF-SCS001V1: Bottom solder paste

Figure 14. STREF-SCS001V1: Top assembly

Figure 15. STREF-SCS001V1: Bottom assembly

Figure 16. STREF-SCS001V1: Top assembly (composite)

Figure 17. STREF-SCS001V1: Bottom assembly (composite)

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Board layout

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5.1 Layout constraints

The VBUS connection to the PMOS Source must be as direct as possible. Use a wide track or routing plane and

place the clamping diode (TVS) and input capacitor on this track (no stub or distant connection).

Similarly, the VSNK connection from the PMOS Drain must be as direct as possible. Use a wide track or routing

plane and place the clamping diode (TVS) and output capacitor on this track (no stub or distant connection).

The ground path must have the lowest possible resistance.

The STSUB4500 decoupling capacitors must be placed close to the 1V2 and 2V7 pads. You should not use these

voltages sources for other purposes.

Protection diodes (such as the ESDA25W) should be placed on the CC1 and CC2 lines. You should have a direct

connection from the Type-C connector pin to the diode pad, and a direct connection from diode pad to the

STUSB4500 pad.

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Layout constraints

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6Board customization

The STUSB4500 has embedded Non-Volatile Memory (NVM) for off-line parameter storage (such as PDO

values). This memory can be set via the I2C interface using STSW-STUSB002 software and an NUCLEO-

F072RB board. The PADs for I2C connection are available on the bottom of the board. Solder wires between

these pads and the Nucleo board:

• GND to Nucleo CN10 pin 9

• SCL to Nucleo CN10 pin 3

• SDA to Nucleo CN10 pin 5

Please refer to STSW-STUSB002 documentation for further details.

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Board customization

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Revision history

Table 1. Document revision history

Date Version Changes

08-Jan-2019 1 Initial release.

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Contents

1Functional diagram ................................................................2

2Getting started ....................................................................3

3Schematic diagram ................................................................4

4Bill of material .....................................................................5

5Board layout.......................................................................6

5.1 Layout constraints ..............................................................8

6Board customization..............................................................10

Revision history .......................................................................11

Contents ..............................................................................12

List of tables ..........................................................................13

List of figures..........................................................................14

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Contents

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List of tables

Table 1. Document revision history ............................................................. 11

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List of figures

Figure 1. STREF-SCS001V1 board photo ........................................................1

Figure 2. STREF-SCS001V1 functional diagram....................................................2

Figure 3. STREF-SCS001V1 schematic .........................................................4

Figure 4. STREF-SCS001V1: Dimensions ........................................................6

Figure 5. STREF-SCS001V1: Drill guide .........................................................6

Figure 6. STREF-SCS001V1: Top layer..........................................................6

Figure 7. STREF-SCS001V1: Bottom layer .......................................................6

Figure 8. STREF-SCS001V1: Top silkscreen ......................................................7

Figure 9. STREF-SCS001V1: Bottom silkscreen....................................................7

Figure 10. STREF-SCS001V1: Top solder resist ....................................................7

Figure 11. STREF-SCS001V1: Bottom solder resist ..................................................7

Figure 12. STREF-SCS001V1: Top solder paste ....................................................7

Figure 13. STREF-SCS001V1: Bottom solder paste ..................................................8

Figure 14. STREF-SCS001V1: Top assembly ......................................................8

Figure 15. STREF-SCS001V1: Bottom assembly ....................................................8

Figure 16. STREF-SCS001V1: Top assembly (composite)..............................................8

Figure 17. STREF-SCS001V1: Bottom assembly (composite) ...........................................8

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List of figures

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