ST STEVAL-IFP042V1 Bedienungsanleitung

Introduction

The STEVAL-IFP042V1 is an industrial digital output expansion board based on ISO808A and compatible with 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 20 MHz SPI control interface, in a digital output

module connected to 0.7 A industrial loads.

The STEVAL-IFP042V1 directly interfaces with the microcontroller on the STM32 Nucleo driven by GPIO pins and Arduino® R3

connectors, ensuring connectivity with either a NUCLEO-F401RE or a NUCLEO-G431RB development board.

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

It is also possible to evaluate a 16 channel digital output system enabling the daisy chaining feature on two STEVAL-IFP042V1

stacked expansion boards.

Figure 1. STEVAL-IFP042V1 expansion board

Industrial digital output expansion board based on ISO808A in TFQFPN32

package

UM3136

User manual

UM3136 - Rev 1 - October 2023

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

1 Getting started

1.1 Overview

The STEVAL-IFP042V1 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 2.5k 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

– TFQFPN32 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

UM3136

Getting started

UM3136 - 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 STEVAL-

IFP042V1 expansion board.

Figure 2. STEVAL-IFP042V1 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 microcontroller board

accessing the STM32 peripheral and GPIO resources;

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

IFP042V1 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 from 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 STEVAL-IFP042V1, 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 STEVAL-IFP042V1, the pins 1 and 2 of J4 must be closed (pins 5-6 open).

UM3136

Digital section

UM3136 - 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. STEVAL-IFP042V1 expansion board: power section

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 STEVAL-IFP042V1 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

UM3136

Power section

UM3136 - Rev 1 page 4/19

1.4 Hardware requirements

The STEVAL-IFP042V1 expansion board is designed to be used with the NUCLEO-F401RE or NUCLEO-

G431RB STM32 Nucleo development boards.

To function correctly, the STEVAL-IFP042V1 must be plugged onto the matching Arduino® UNO R3 connector

pins on the STM32 Nucleo board as shown below.

Figure 4. STEVAL-IFP042V1 and STM32 Nucleo stack

1.5 System requirements

To use the STM32 Nucleo development boards with the STEVAL-IFP042V1 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

UM3136

Hardware requirements

UM3136 - 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 STEVAL-IFP042V1 with NUCLEO-

F401RE or NUCLEO-G431RB development board.

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

through the STM32 ST-LINK utility, STM32CubeProg, and according with information detailed in the

table below. The STEVAL-IFP042V1 can be used to control the ISO808A device in three different

modes available for the user in three different example projects: Regular_8_Channels (standalone

board, default hardware configuration), Regular_16_Channels (two stacked independent boards, one

needs to be reworked as in hardware Regular_16_Channels configuration) and DaisyChain (two

stacked boards both reworked as in hardware Daisy chain configuration). The binary files provided with

the X-CUBE-IPS software package enable the user to choose the preferred control mode by selecting

the binary file contained in the proper example project binary folder, as reported in the following table.

Table 1. Nucleo development boards binary files

Nucleo board Binary path

NUCLEO-F401RE

Projects\STM32F401RE-Nucleo\

Examples\OUT12A1\DaisyChain\Binary\DaisyChain.bin

Projects\STM32F401RE-Nucleo\

Examples\OUT12A1\Regular_8_Channels\Binary\Regular_8_Channels.bin

Projects\STM32F401RE-Nucleo\

Examples\OUT12A1\Regular_16_Channels\Binary\Regular_16_Channels.

bin

NUCLEO-G431RB

Projects\STM32G431RB-Nucleo\

Examples\OUT12A1\DaisyChain\Binary\DaisyChain.bin

Projects\STM32G431RB-Nucleo\

Examples\OUT12A1\Regular_8_Channels\Binary\Regular_8_Channels.bin

Projects\STM32G431RB-Nucleo\

Examples\OUT12A1\Regular_16_Channels\Binary\Regular_16_Channels.

bin

Note: Additional details on each hardware configuration are available inside the X-CUBE-IPS software

package as reported in the below table:

Table 2. Additional information on board configuration

Board configuration Readme file

DaisyChain Examples\OUT12A1\DaisyChain\readme.html

Regular_8_Channels Examples\OUT12A1\Regular_8_Channels\ readme.html

Regular_16_Channels Examples\OUT12A1\Regular_16_Channels\ readme.html

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.

UM3136

Board setup

UM3136 - Rev 1 page 6/19

2 Schematic diagrams

Figure 5. STEVAL-IFP042V1 circuit schematic (1 of 2)

Alternate use

PB4

PC1

PC0

PA0

PA10

PA2

Arduino connectors

PA5

PB8

PB9

Analog supply

10V - 36V

PB5

PA9

ISO808AQTR direct supply voltage:

- set to max 3.3 v

when STEVAL-IFP042V1 is used with NUCLEO board

-can be set to max 5.5 V

when STEVAL-IFP042V1 is used stand-alone

PB6

AVDD

DEFAULT

PA7

I OREF

DEFAULT

PA4

PB0 Alternate use

PA6

PB10

NRST

Alternate use

PA1

Alternate use

PA3

Morpho connectors

(not mounted)

PA8

PC7

(7-12V NUCLEO supply voltage)

PB3

DEFAULT

Alternate use

VCC

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

OUT8

SPI_CLK

SPI_MISO

SPI_MOSI

SPI_SS

PGOOD

DaisyChain

STATUS

OUT_EN

EXT_Vdd

3v3 5v0

R120 100 N.M.

C12

4700pF

N.M.

D2 BAT48JFILM

N.M.

CN12

691214110002

J10

default open

CN1

691214110002

D1 STPS1H100A

CN3

691214110002

CN4

691214110002

R111 100 N.M.

CN6

SSQ-108-04-F-S

R118 100 N.M.

R105 100

CN11

691214110003

N.M.

CN2

691214110002

R117 100 N.M.

R102 100 N.M.

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

TP8

5001

R119 100

D12

ESDA7P60-1U1M

N.M.

R112 100 N.M.

R103 100

CN9

SSQ-108-04-F-S

R116 100 N.M.

C11

4700pF

N.M.

R115 100 N.M.

R106 100

47uF

N.M.

CN5

SSQ-110-04-F-S

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

C10

2.2uF

R101 100 N.M.

R108 100

R113 100 N.M.

SM15T39CA

R109 100 N.M.

R114 100 N.M.

ESDA15P60-1U1M

N.M.

R104 100

CN8

SSQ-106-04-F-S

JUMPER-con2-strip-male

N.M. default open

default closed

EARTH

STATUS

PGOOD

3V3

5V SPI_CLK

SPI_MISO

SPI_MOSI

VIN SPI_SS

DaisyChain

VIN

SPI_CLK

SPI_MISO

SPI_MOSI

SPI_SS SPI_SS

STATUS

PGOOD DaisyChain PGOOD

OUT_EN PGOOD

SPI_SS DaisyChain

DaisyChain OUT_EN

STATUS STATUS

OUT_EN

UM3136 - Rev 1 page 7/19

UM3136

Schematic diagrams

Figure 6. STEVAL-IFP042V1 circuit schematic (2 of 2)

OUT_EN

SPI_SS

SPI_CLK

SPI_MOSI

PGOOD

SPI_MISO

DaisyChain

STATUS

VCC

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

OUT8

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

OUT8

EXT_Vdd

3v3

R27

15k

R20 22k

C24 33pF

C23 33pF

D13

SMBJ5.0A-TR

C26

0.1uF

R28

15k

con6-2x3-strip-male

default: close 1-2, 3-4, 5-6

1 2

3 4

5 6

J13

con4-2x2-strip-male

default close 1-2

1 2

3 4

C1 10nF

C25

2.2uF

C22 33pF

R14 22k

R8 390

C21 33pF

C14 33pF

R29

15k

C13

0.1uF

R15

D15

LED YELLOW

C8 10nF

D10

LED GREEN

C7 10nF

R30

15k

R11 390

D16

RED LED

LED GREEN

con8-2x4-strip-male

J7 default: close 1-2, 3-4, 5-6, 7-8

D11

RED LED

ISO808AQTR

GNDdd

NC#2

GND1

OUT8a 4

OUT8b 5

OUT7a 6

OUT7b 7

OUT6a 8

OUT6b 9

OUT5a 10

OUT5b 11

OUT4a 12

OUT4b 13

OUT3a 14

OUT3b 15

OUT2a 16

OUT2b 17

OUT1a 18

OUT1b 19

Vdd 20

OUT EN

CLK

SDI

PGOOD

NC#26

NC#27

NC#28

NC#29

NC#30

SDO

FAULT

TAB Vcc

GND2

GND3

GND4

C6 10nF

R121

C5 10nF

R25

15k

LED GREEN

C4 10nF

con6-2x3-strip-male

default: close 5-6

1 2

3 4

5 6

R10 390

R18

15k

LED GREEN

R2 0

R3 0

C3 10nF

LED GREEN

R9 390

J12

con4-2x2-strip-male

default close 1-2

1 2

3 4

C2 10nF

R1 390

LED GREEN

R26

15k

LED GREEN

R19

15k

con8-2x4-strip-male

J6 default: close 1-2, 3-4, 5-6, 7-8

LED GREEN

R17

390

SPI_MOSI

DaisyChain

SPI_MISO

DaisyChain

UM3136 - Rev 1 page 8/19

UM3136

Schematic diagrams

3 Bill of materials

Table 3. STEVAL-IFP042V1 bill of materials

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

18C1 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

65C14 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

85CN1 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

UM3136

Bill of materials

UM3136 - 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

UM3136

Bill of materials

UM3136 - Rev 1 page 10/19

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