ST X-NUCLEO-OUT12A1 Manuale utente

Introduction

The X-NUCLEO-OUT12A1 is an industrial digital output expansion board for STM32 Nucleo. It provides a powerful and flexible

environment for the evaluation of the driving and diagnostic capabilities of the ISO808A octal high-side smart power solid state

relay, with embedded galvanic isolation and 20MHz SPI control interface, in a digital output module connected to 0.7 A industrial

loads.

The X-NUCLEO-OUT12A1 directly interfaces with the microcontroller on the STM32 Nucleo driven by GPIO pins and Arduino®

R3 connectors.

The galvanic isolation between the microcontroller and the process stage is guaranteed by the ISO808A.

The expansion board can be connected to either a NUCLEO-F401RE or a NUCLEO-G431RB development board.

It is also possible to evaluate a 16 channel digital output system enabling the daisy chaining feature on two X-NUCLEO-

OUT12A1 stacked expansion boards.

Figure 1. X-NUCLEO-OUT12A1 expansion board

Getting started with the X-NUCLEO-OUT12A1 industrial digital output expansion

board for STM32 Nucleo

UM3080

User manual

UM3080 - Rev 1 - December 2022

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

1Getting started

1.1 Overview

The X-NUCLEO-OUT12A1 embeds the ISO808A intelligent power switch (IPS), which features galvanic isolation,

20 MHz SPI and Power Good diagnostic, overcurrent and overtemperature protection for safe output loads

control.

The board is designed to meet the application requirements for the galvanic isolation between the user and power

interfaces.

The galvanic isolation embedded by the ISO808A satisfies this requirement, avoiding the necessity of external

optocouplers, with a consequent cost saving and a reduced application size.

The expansion board features:

• Based on the ISO808A octal high-side switch, which features:

– Operating range 9.2 to 36 V

– Low power dissipation (RON(MAX) = 260 mΩ)

– Process side operating current: up to 0.7 A per channel

– Embedded 2k VRMS galvanic isolation

– PGOOD (VCC voltage level alarm signalization)

– 20 MHz SPI with daisy chaining

– Fast decay for inductive loads

– Undervoltage lock-out

– Overload and overtemperature protections

– Loss of ground protection

– PowerSO36 package

• Application board process side operating range: 10 (J10 open) to 33 V (J9 closed)

• Extended operating range of process side from 9.2 (J10 closed) up to 36 V (J9 open)

• Application board logic side operating voltage 3.3 to 5 V

• Green LEDs for outputs on/off status (J6 and J7 close 1-2, 3-4, 5-6, 7-8)

• Red LED for common overheating and communication error diagnostic (J3 close 1-2)

• Red LED for PGOOD signalization (J3 close 3-4)

• Yellow LED for output enable status signalization (J3 close 5-6)

• Process and logic supply rails reverse polarity protections

• Compatible with STM32 Nucleo development boards

• Equipped with Arduino® UNO R3 connectors

• RoHS and China RoHS compliant

• CE certified

• Radiated emission: class B according to the standard EN 55032

UM3080

Getting started

UM3080 - Rev 1 page 2/19

1.2 Digital section

The digital section is associated with the STM32 interface and the digital supply voltage to and from the

X-NUCLEO-OUT12A1 expansion board.

Figure 2. X-NUCLEO-OUT12A1 expansion board: digital interface section

The dotted green line indicates the whole digital interface section. The pink rectangles identify the Arduino® UNO

R3 connectors.

The four Arduino® UNO R3 connectors:

•allow the expansion board to communicate with the STM32 Nucleo development board microcontroller

accessing the STM32 peripheral and GPIO resources;

• provide the digital supply voltage between the STM32 Nucleo development board and the X-NUCLEO-

OUT12A1 expansion board, in either direction.

Usually, the STM32 Nucleo development board supplies the expansion board by a 3.3 V or 5.0 V generated by

the USB.

Alternatively, it is possible to supply the STM32 Nucleo development board by the expansion board. In this case,

an external supply voltage (7-12 V) should be connected to the CN11 connector (not mounted by default) on the

expansion board and the ground loop should be closed by mounting D2 (enabling the reverse polarity protection)

or by closing J5 (without reverse polarity). In this scenario, the logic side of the ISO808A can be supplied by the

3.3 V supply rail generated by the expansion board: in this case, on the X-NUCLEO-OUT12A1, J4 must be closed

between pins 5 and 6.

To supply the VIN voltage rail, it is necessary to:

• close the JP5 jumper between pins 2 and 3 and open the JP1 jumper on the NUCLEO-F401RE;

• open the JP5 jumper between pins 1 and 2 and close the JP5 jumper between pins 3 and 4 on the

NUCLEO-G431RB.

The pin 3 of the connector CN11 can be used to supply the logic side of the ISO808A independently by the

expansion board. In this case, on the X-NUCLEO-OUT12A1, the pins 1 and 2 of J4 must be closed (pins 5-6

open).

UM3080

Digital section

UM3080 - Rev 1 page 3/19

1.3 Power section

The power section involves the power supply voltage (CN1, pin 1 for VCC, pin 2 for GND), the load connection

(eight loads can be connected between each pin of CN2, CN3, CN4, and CN12 and pin 2 of CN1), EMC

protections (U2), and supply reverse polarity protection (D1).

Figure 3. X-NUCLEO-OUT12A1 expansion board: power section components

1. ISO808A

2. Output and power supply connector

3. Output channels - green LEDs

4. Status (overtemperature) red LED

5. Output Enable yellow LED

6. Power Good - red LED

For EMC:

•the SM15T39CA transient voltage suppressor (U2), enabled by closing J9, is placed between VCC and

GND tracks to protect the ISO808A against surge discharge on the supply rail path up to ±1 kV/2 Ω

coupling;

• in the common mode surge testing, two single-layer capacitors (C11 and C12 - not included) must be

soldered at the predisposed locations;

• the ISO808A output stages do not require additional EMC protections with respect to the IEC61000-4-2,

IEC61000-4-3, IEC61000-4-4, IEC61000-4-5, IEC61000-4-8 standards.

The EMC performance of the X-NUCLEO-OUT12A1 is detailed below:

• for emission (when the DC input port of the board is powered by an AC-DC, DC-DC or battery with a cable

that does not exceed a three-meter length), compliance with standards:

– EN IEC 61000-6-3:2021

– EN 55032:2015 +A1:2020

• for immunity, compliance with standards:

– EN IEC 61000-6-1:2019

– EN 55035:2017 +A11:2020

UM3080

Power section

UM3080 - Rev 1 page 4/19

1.4 Hardware requirements

The X-NUCLEO-OUT12A1 expansion board is designed to be used with the NUCLEO-F401RE or NUCLEO-

G431RB STM32 Nucleo development boards.

To function correctly, the X-NUCLEO-OUT12A1 must be plugged onto the matching Arduino® UNO R3 connector

pins on the STM32 Nucleo board as shown below.

Figure 4. X-NUCLEO-OUT12A1 and STM32 Nucleo stack

1.5 System requirements

To use the STM32 Nucleo development boards with the X-NUCLEO-OUT12A1 expansion board, you need:

•a Windows PC/laptop (Windows 7 or above)

• a type A to mini-B USB cable to connect the STM32 Nucleo board to the PC when using a NUCLEO-

F401RE development board

• a type A to micro-B USB cable to connect the STM32 Nucleo board to the PC when using a NUCLEO-

G431RB development board

• the X-CUBE-IPS firmware and software package installed on your PC/laptop

UM3080

Hardware requirements

UM3080 - Rev 1 page 5/19

1.6 Board setup

Step 1. Connect the mini-USB or micro-USB cable to your PC to use the X-NUCLEO-OUT12A1 with NUCLEO-

F401RE or NUCLEO-G431RB development board

Step 2. Download the firmware (.bin) onto the STM32 Nucleo development board microcontroller through

STM32 ST-LINK utility, STM32CubeProgrammer, and according to your IDE environment as detailed in

the table below.

Table 1. NUCLEO-F401RE development board supported IDEs - bin files

NUCLEO-F401RE

IAR Keil STM32CubeIDE

EWARM-OUT12_14-

STM32F4xx_Nucleo.bin

MDK-ARM-OUT12_14-

STM32F4xx_Nucleo.bin

STM32CubeIDE-OUT12_14-

STM32F4xx_Nucleo.bin

Table 2. NUCLEO-G431RB development board supported IDEs - bin files

NUCLEO-G431RB

IAR Keil STM32CubeIDE

EWARM-OUT12_14-

STM32G4xx_Nucleo.bin

MDK-ARM-OUT12_14-

STM32G4xx_Nucleo.bin

STM32CubeIDE-OUT12_14-

STM32G4xx_Nucleo.bin

Note: By default, the X-NUCLEO-OUT12A1 is configured to work stand-alone. However, it is possible

to stack two X-NUCLEO-OUT12A1 and enable the related control by enabling the daisy chaining

communication:

– Close J12 [1-2] and J13 [3-4 ] in board #1

– Close J12 [3-4] and J13 [1-2 ] in board #2

– Rework board #1: remove R105 and mount R102

– Rework board #2: remove R119, R108, R107, R104 and mount R102, R113, R111, R109

In terms of software, it is necessary to generate the new binary file after having defined the

preprocessor directive USE_DAISY_CHAIN and removed the directive USE_PAR_IND (or changed

in noUSE_PAR_IND). The modification to control mode becomes effective on the binary files after

rebuilding.

Step 3. Connect the ISO808A device supply voltage via CN1 (see Section 1.3 Power section).

Step 4. Provide the digital supply voltage (see Section 1.2 Digital section).

Step 5. Connect the load on the output connector (see Section 1.3 Power section).

Step 6. Reset the example sequence by pushing the black button on the STM32 Nucleo board.

Step 7. Push the blue button on the STM32 Nucleo board to choose among the examples provided in the

default firmware package.

UM3080

Board setup

UM3080 - Rev 1 page 6/19

2Schematic diagrams

Figure 5. X-NUCLEO-OUT12A1 circuit schematic (1 of 2)

I SO808A di r ect suppl y v ol t age:

- set t o max 3. 3V

when X- NUCLEO- OUT12A1 i s usded wi t h NUCLEO boar d

- can be set t o max 5. 5V

when X- NUCLEO- OUT12A1 i s used st and- al one

( 7V- 12V NUCLEO s uppl y vol t age)

Analog supply

10-36 V

PA6

PB8

PA8

PA4

PA5

PA3

I OREF

Arduino connectors

DEFAULT

PA10

Al t er nat e use

PB6

PC0

NRST

PB5

PB4

PB9

PB0

PC7

Morpho connectors

(not mounted)

DEFAULT

PA7

PA2

PA1

AVDD

PA0

PA9

PC1

PB10

Al t er nat e use

DEFAULT

Al t er nat e use

PB3

VCC

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

OUT8

STATUS

OUT_EN

SPI_CLK

SPI_MISO

SPI_MOSI

SPI_SS

PGOOD

DaisyChain

EXT_Vdd

3v3 5v0

CN7

SSQ-119-04-L-D

N.M.

1 2

3 4

5 6

7 8

9 10

11 12

13 14

15 16

17 18

19 20

21 22

23 24

25 26

27 28

29 30

31 32

33 34

35 36

37 38

R107 100

R101 100 N.M.

R118 100 N.M.

D2 BAT48JFILM

N.M.

CN6

SSQ-108-04-F-S

CN9

SSQ-108-04-F-S

JUMPER-con2-strip-male

N.M. default open

R106 100

CN12

691214110002

CN11

691214110003

N.M.

CN4

691214110002

R117 100 N.M.

CN3

691214110002

SM15T39CA

47uF

N.M.

CN10

SSQ-119-04-L-D

N.M.

1 2

3 4

5 6

7 8

9 10

11 12

13 14

15 16

17 18

19 20

21 22

23 24

25 26

27 28

29 30

31 32

33 34

35 36

37 38

D12

ESDA7P60-1U1M

N.M.

CN2

691214110002

R114 100 N.M.

R105 100

R109 100 N.M.

CN1

691214110002

R116 100 N.M.

CN5

SSQ-110-04-F-S

R104 100

R115 100 N.M.

R111 100 N.M.

C10

2.2uF

C11

4700pF

N.M.

J10

default open

R112 100 N.M.

default closed

D1 STPS1H100A

R103 100

R120 100 N.M.

C12

4700pF

N.M.

TP8

5001

R108 100

R113 100 N.M.

R102 100 N.M.

R119 100

CN8

SSQ-106-04-F-S

ESDA15P60-1U1M

N.M.

EARTH

STATUS

3V3

VIN

STATUS

OUT_EN

SPI_CLK

SPI_MISO

SPI_MOSI

SPI_SS

PGOOD

DaisyChain

SPI_SS

DaisyChain

STATUS

OUT_EN

SPI_SS

STATUS

DaisyChain

SPI_CLK

SPI_MISO

SPI_MOSI

SPI_SS

PGOOD

DaisyChain

OUT_EN

PGOOD

OUT_EN

UM3080 - Rev 1 page 7/19

UM3080

Schematic diagrams

Figure 6. X-NUCLEO-OUT12A1 circuit schematic (2 of 2)

VCC

OUT1

OUT_EN

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

OUT8

STATUS

SP I_MIS O

SP I_MOS I

SP I_S S

Da is yCha in

SP I_CLK

PGOOD

EXT_Vdd

3v3

LED GREEN

C1 10nF

R121

D13

S MBJ 5. 0A-TR

J 12

c on4 -2x2 -s trip-m a le

de fault: clos e 1-2

1 2

3 4

C14 33pF

J 7

c on8 -2x4 -s trip-m a le

de fault clos e : 1-2, 3-4, 5-6, 7-8

C24 33pF

C8 10nF

R30

15k

R25

15k

LED GREEN

C2 10nF

C25

2.2uF

R17

390

R2 0

D16

RED LED

LED GREEN

R11 390

C3 10nF

R18

15k

R26

15k

C21 33pF

C26

0.1uF

R15

LED GREEN

C4 10nF

R19

15k

R10 390

R27

15k

D11

RED LED

C13

0.1uF

C22 33pF

LED GREEN

C5 10nF

R20 22k

D15

LED YELLOW

J 3

c on6 -2x3 -s trip -ma le

de fault: clos e 1-2, 3-4, 5-6

1 2

3 4

5 6

R9 390

R28

15k

R8 390

ISO808A

NC1

Vdd

OUT_EN

CLK

SDI

PGOOD

NC8

NC9

NC10

NC11

NC12

SDO

FAULT

GNDdd

NC16

NC17

NC18

GNDcc

NC20

OUT8_2

OUT8_1

OUT7_2

OUT7_1

OUT6_2

OUT6_1

OUT5_2

OUT5_1

OUT4_2

OUT4_1

OUT3_2

OUT3_1

OUT2_2

OUT2_1

OUT1_2

OUT1_1

VCC_EP

LED GREEN

C6 10nF

J 6

c on8 -2x4 -s trip -ma le

de fault clos e : 1-2, 3-4, 5-6, 7-8

LED GREEN

C23 33pF

R3 0

R14 22k

J 13

c on4 -2x2 -s trip -ma le

de fault: clos e 1-2

1 2

3 4

R1 390

R29

15k

D10

LED GREEN

J 4

c on6 -2x3 -s trip -ma le

de fault: clos e 5-6

1 2

3 4

5 6

C7 10nF

SP I_MOS I

Da is yCha in

SP I_MIS O

Da is yCha in

UM3080 - Rev 1 page 8/19

UM3080

Schematic diagrams

3Bill of materials

Table 3. X-NUCLEO-OUT12A1 bill of materials

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

1 8 C1 C2 C3 C4

C5 C6 C7 C8

10nF 0603

(1608 Metric)

50V 10%

CAP CER

10000PF 50V

X7R 0603

Wurth

Electronics Inc. 885382206002

2 0 C9 47uF Radial,

Can 100V 20%

CAP 47 UF

20% 100 V (not

mounted)

Wurth

Electronics Inc. 860040875002

3 1 C10

2.2uF 1206

(3216 Metric)

100V 10%

CAP CER

2.2UF 100V

X7R 1206

AVX

Corporation 12061C225KAT2A

4 0 C11 C12

4700pF 1825

(4564 Metric)

3000V (3kV)

10%

CAP CER

4700PF 3KV

X7R 1825 (not

mounted)

Vishay Vitramon HV1825Y472KXHATHV

5 2 C13 C26

0.1uF 0805

(2012 Metric)

100V 10%

CAP CER

0.1UF 100V

X7R 0805

Wurth

Electronics Inc. 885012207128

6 5 C14 C21 C22

C23 C24

33pF 0402

(1005 Metric)

10V 5%

CAPACITOR

CERAMIC SMD

0402

Wurth

Electronics Inc. 885012005010

7 1 C25

2.2uF 0402

(1005 Metric)

10V 20%

CAP CER

2.2UF 10V X5R

0402

Wurth

Electronics Inc. 885012105013

8 5 CN1 CN2 CN3

CN4 CN12

691214110002

7.4X7 pitch 3.5

TERM BLK

2POS SIDE

ENT 3.5MM

PCB

Wurth

Electronics Inc. 691214110002

9 1 CN5 10 ways, 1 row

CONN RCPT

10POS 0.1

GOLD PCB

SAMTEC

4UCON ESQ-110-14-T-S 17896

10 2 CN6 CN9 8 ways, 1row

CONN RCPT

8POS 0.1

GOLD PCB

SAMTEC

4UCON ESQ-108-14-T-S 15782

11 0 CN7 CN10

CONN RCPT

38POS 0.1

GOLD PCB (not

mounted)

Samtec Inc. SSQ-119-04-L-D

12 1 CN8 6 ways, 1 row

CONN RCPT

6POS 0.1

GOLD PCB

SAMTEC

4UCON ESQ-106-04-T-S 15781

13 0 CN11

691214110003

10.5X7.4 pitch

3.5mm

TERM BLK

3POS SIDE

ENT 3.5MM

PCB (not

mounted)

Wurth

Electronics Inc. 691214110003

14 1 D1

STPS1H100A

DO-214AC,

SMA 1A

DIODE

SCHOTTKY

100V 1A SMA

ST STPS1H100A

15 0 D2

BAT48JFILM

SC-76,

SOD-323

750mV @

200mA 350mA

(DC)

DIODE

SCHOTTKY

40V 350MA

SOD323 (not

mounted)

ST BAT48JFILM

UM3080

Bill of materials

UM3080 - Rev 1 page 9/19

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

16 8 D3 D4 D5 D6

D7 D8 D9 D10

LED GREEN

0603 (1608

Metric) 20mA

LED GREEN

CLEAR 0603

SMD

Wurth

Electronics Inc. 150060VS75000

17 2 D11 D16

RED LED 0603

(1608 Metric)

20mA

LED RED

CLEAR 0603

SMD

Wurth

Electronics Inc. 150060RS75000

18 0 D12 ESDA7P60-1U1

M 2-UDFN

TVS DIODE

5VWM 11.6VCL

1610 (not

mounted)

ST ESDA7P60-1U1M

19 1 D13

SMBJ5.0A-TR

DO-214AA,

SMB 600W

TVS DIODE 5V

13.4V SMB ST SMBJ5.0A-TR

20 1 D15

LED YELLOW

0603 (1608

Metric) 20mA

LED YELLOW

CLEAR 0603

SMD

Wurth

Electronics Inc. 150060YS75000

21 1 J3 con6-2x3-strip-

male

CONN

HEADER .100

DUAL STR

6POS

Wurth

Electronics Inc. 61300621121

22 1 J4 con6-2x3-strip-

male

CONN

HEADER .100

DUAL STR

6POS

Wurth

Electronics Inc. 61300621121

23 0 J5 JUMPER-con2-

strip-male

JUMPER-

CONN

HEADER .100

STR 2POS (not

mounted)

Wurth

Electronics Inc. 61300211121

24 2 J6 J7 con8-2x4-strip-

male

CONN

HEADER VERT

8POS 2.54MM

Wurth

Electronics Inc. 61300821121

25 2 J9 J10 JUMPER-con2-

strip-male

JUMPER-

CONN

HEADER .100

STR 2POS

Wurth

Electronics Inc. 61300211121

26 2 J12 J13 con4-2x2-strip-

male

CONN

HEADER .100

DUAL STR

4POS

Wurth

Electronics Inc. 61300421121

27 5 R1 R8 R9 R10

R11

390 0402 (1005

Metric) 0.1W,

1/10W 5%

CHIP

RESISTOR

SMD 5% 1/10W

0402

Panasonic ERJH2GJ391X

28 2 R2 R3

0 0402 (1005

Metric) 0.1W,

1/10W 0%

CHIP

RESISTOR

SMD 0% 1/10W

0402

Panasonic ERJH2G0R00X

29 2 R14 R20

22k 0603 (1608

Metric) 0.1W,

1/10W 1%

RES SMD 22K

OHM 1% 1/10W

0603

Yageo RC0603FR-0722KL

30 1 R17

390 0603 (1608

Metric) 0.1W,

1/10W 1%

RES SMD 390

OHM 1% 1/10W

0603

Yageo RC0603FR-07390RL

31 2 R15 R121

1k 0603 (1608

Metric) 0.1W,

1/10W 1%

RES SMD 1K

OHM 1% 1/10W

0603

Yageo RC0603FR-071KL

UM3080

Bill of materials

UM3080 - Rev 1 page 10/19

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