ST X-NUCLEO-OUT15A1 User manual
Introduction
The X-NUCLEO-OUT15A1 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 IPS1025HF single high-side, smart power,
solid-state relay in a digital output module connected to 2.5 A industrial loads.
The X-NUCLEO-OUT15A1 interfaces with the microcontroller on the STM32 Nucleo via 5 kV optocouplers driven by the GPIO
pins and Arduino® UNO R3 connectors.
The expansion board can be connected to either a NUCLEO-F401RE or a NUCLEO-G431RB development board.
You can also evaluate a system consisting of an X-NUCLEO-OUT05A1 stacked on an X-NUCLEO-OUT15A1 expansion board.
Supplying the X-NUCLEO-OUT05A1 through the main supply rail and the X-NUCLEO-OUT15A1 through the output of the
X-NUCLEO-OUT05A1, you can achieve the typical architecture of a single channel digital output for safety systems. The
process stages of the two expansion boards result cascaded. The load connected to the X-NUCLEO-OUT15A1 output can be
supplied only when both cascaded systems are properly working.
Figure 1. X-NUCLEO-OUT15A1 expansion board
Getting started with the X-NUCLEO-OUT15A1 industrial digital output expansion
board for STM32 Nucleo
UM3036
User manual
UM3036 - Rev 1 - June 2022
For further information contact your local STMicroelectronics sales office. www.st.com
1Getting started
1.1 Overview
The X-NUCLEO-OUT15A1 embeds the IPS1025HF intelligent power switch (IPS), which features overcurrent and
overtemperature protection for safe output load control. The IPS1025HF also offers the quick activation of its
output stage even at power-up. In fact, the input to the output propagation delay at startup is guaranteed ≤ 60 µs.
The board is designed to meet the application requirements for the galvanic isolation between the user and power
interfaces.
An optical isolation satisfies this requirement. The isolation is implemented through five optocouplers (ISO1,
ISO2, ISO3, ISO4, and ISO5) for the input signal forward to the device, the FLT diagnostic feedback signals of
the device, and two additional signals for safety application optimization (Nch-DRV for the fast discharge control
of the output voltage, and OUT_FB for the on/off status monitoring of the output stage).
The expansion board features:
• Based on the IPS1025HF single high-side switch, which features:
– Operating range up to 60 V
– Low-power dissipation (RON(MAX) = 25 mΩ)
– Propagation delay at startup < 60 µs
– Fast decay for inductive loads
– Smart driving of capacitive load
– Under-voltage lock-out
– Overload and over-temperature protection
– PowerSSO 24 package
• Application board operating range: 8-33 V/0-2.5 A
• Extended voltage operating range (J3 open) up to 60 V
• Green LED for output on/off status (J11 close 3-4 and SW5 close 1-2)
• Red LEDs for overload and overheating diagnostics (SW2 and SW4 close 2-3)
• Output voltage on/off status feedback (J11 close 1-2)
• Control signal for fast discharge of output voltage (J11 close 5-6, J12 close)
• External fast discharge circuitry for huge inductive loads (J11 close 7-8)
• 5 kV galvanic isolation
• Supply rail reverse polarity protection
• Compatible with STM32 Nucleo development boards
• Equipped with Arduino® UNO R3 connectors
• CE certified
• Not FCC approved for resale
• RoHS and China RoHS compliant
UM3036
Getting started
UM3036 - Rev 1 page 2/20
1.1.1 Digital section
The digital section is associated with the STM32 interface and the digital supply voltage to and from the
X-NUCLEO-OUT15A1 expansion board.
Figure 2. X-NUCLEO-OUT15A1 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-
OUT15A1 expansion board, in either direction.
Normally, the STM32 Nucleo development board supplies the expansion board by a 3v3 or 5v0 generated by the
USB. You can select the preferred voltage on the expansion board via SW3 (3v3 closing pins 1-2; 5v0 closing
pins 2-3).
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 CN2 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 J2 (without reverse polarity).
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.
UM3036
Overview
UM3036 - Rev 1 page 3/20
1.1.2 Power section
The power section involves the power supply voltage (CN1, pins 4 and 5 for VCC, pin 3 for GND), load
connection (a load can be connected between pins CN1.1 and CN1.3 or CN1.2, and CN1.3; both output pins
are connected to the single output channel as shown in Section 2 Schematic diagrams) and electromagnetic
compatibility (EMC) protection.
Figure 3. X-NUCLEO-OUT15A1 expansion board: power section components
1. Overtemperature red LED
2. Overload red LED
3. IPS1025HF
4. Output channel - green LED
5. Output and power supply connector
For EMC:
• the SM15T39CA transient voltage suppressor (TR1), enabled by closing J3, is placed between VCC and
GND tracks to protect the IPS1025HF 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 (C1 and C2 - not included) must be soldered
at the predisposed locations;
• the IPS1025HF 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.
UM3036
Overview
UM3036 - Rev 1 page 4/20
The EMC performances of the X-NUCLEO-OUT15A1 are detailed below:
• emission tests certified by a third party:
– EN 55016-2-3
– ANSI C63.4
• immunity tests certified by a third party:
– EN 61000-4-2
– EN 61000-4-3
– EN 61000-4-8
• immunity tests validated by ST application lab:
– EN 61000-4-4
– EN 61000-4-5
UM3036
Overview
UM3036 - Rev 1 page 5/20
1.2 Hardware requirements
The X-NUCLEO-OUT15A1 expansion board is designed to be used with the NUCLEO-F401RE or NUCLEO-
G431RB STM32 Nucleo development boards.
To function correctly, the X-NUCLEO-OUT15A1 must be plugged onto the matching Arduino® UNO R3 connector
pins on the STM32 Nucleo development board as shown below.
Figure 4. X-NUCLEO-OUT15A1 and STM32 Nucleo stack
1.3 System requirements
To use the STM32 Nucleo development boards with the X-NUCLEO-OUT15A1 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 development board to the PC when using a
NUCLEO-F401RE development board
• a type A to micro-B USB cable to connect the STM32 Nucleo development board to the PC when using a
NUCLEO-G431RB development board
• the X-CUBE-IPS firmware and software package installed on your PC/laptop
UM3036
Hardware requirements
UM3036 - Rev 1 page 6/20
1.4 Board setup
Step 1. Connect the micro-USB or mini-USB cable to your PC to use the X-NUCLEO-OUT15A1 with NUCLEO-
F401RE or NUCLEO-G431RB development board.
Step 2. Download the firmware (.bin) onto the STM32 Nucleo development board microcontroller through the
STM32ST-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-OUT15-
STM32F4xx_Nucleo.bin
MDK-ARM-OUT15-
STM32F4xx_Nucleo.bin
STM32CubeIDE-OUT15-
STM32F4xx_Nucleo.bin
Table 2. NUCLEO-G431RB development board supported IDEs - bin files
NUCLEO-G431RB
IAR Keil®STM32CubeIDE
EWARM-OUT15-
STM32G4xx_Nucleo.bin
MDK-ARM-OUT15-
STM32G4xx_Nucleo.bin
STM32CubeIDE-OUT15-
STM32G4xx_Nucleo.bin
Step 3. Connect the IPS1025HF device supply voltage via CN1 (see Section 1.1.2 Power section).
Step 4. Provide the digital supply voltage (see Section 1.1.1 Digital section).
Step 5. Connect the load on the output connector (see Section 1.1.2 Power section).
Step 6. Reset the example sequence using the black push button.
Step 7. Push the STM32 Nucleo blue button to select the example provided in the firmware package.
UM3036
Board setup
UM3036 - Rev 1 page 7/20
2Schematic diagrams
Figure 5. X-NUCLEO-OUT15A1 circuit schematic (1 of 2)
DEFAULT
DEFAULT
ALTERNATE USE
OUT
Analog supply
8 - 60 V
VCC
VCC
PB8
PA10
PA4
PA2
PB9
PA0
PB10
PB0
PC0
PA5
PA1
PB4
PA3
ALTERNATE USE
PA8
PA6
PB6
DEFAULT
PA7
Morpho connectors
(N. M.)
PC1
PB3
Arduino connectors
PA9
PB5
PC7
GND
OUT
NRST
I OREF
( 7V- 12V NUCLEO suppl y vol t age)
ALTERNATE USE
DEFAULT
DEFAULT
ALTERNATE USE
ALTERNATE USE
OUT1
VCC
IN1
FLT1
FLT2
OUT_FB
Nch-DRV
3v3 5v0
TR1
SM15T39CA
12
J3
default closed
D1 STPS1H100A
CN1
691137710005
1
2
3
4
5
R115 100 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
R108 100
R104 100 N.M.
CN5
SSQ-110-04-F-S
1
2
3
4
5
6
7
8
9
10
R101 100
FIDUCIAL3
Fiducial
TP4
5001
R114 100
TR2
ESDA15P60-1U1M
N.M.
R107 100 N.M.
R102 100 N.M.
MH4
M3 HOLE NOT PLATED
R103 100
J2 default open
MH2
M3 HOLE NOT PLATED
MH3
M3 HOLE NOT PLATED
R116 100 N.M.
FIDUCIAL2
Fiducial
CN2
691214110002
N.M.
1
2
CN6
SSQ-108-04-F-S
1
2
3
4
5
6
7
8
CN8
SSQ-106-04-F-S
1
2
3
4
5
6
+
C10
100uF
N.M.
12
CN9
SSQ-108-04-F-S
1
2
3
4
5
6
7
8
C1
4700pF
N.M.
D2
BAT48JFILM
N.M.
C6
2.2uF
TP2
5001
MH1
M3 HOLE NOT PLATED
FIDUCIAL1
Fiducial
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
R110 100
FIDUCIAL4
Fiducial
C2
4700pF
N.M.
J4
default closed
EARTH
FLT1 D15
FLT1 D14
AVDD
VIN
3V3 D13
5V D12
D11
IN1 D10
VIN IN1 D9
D8
IN1
FLT1
D7
FLT2
D6
A0 D5
A1 D4
OUT_FB
A2 D3
A3 FLT2 D2
Nch-DRV
A4 FLT2 D1
A5 D0
OUT_FB
Nch-DRV
Nch-DRV
OUT_FB
Alternate nucleo supply
7 - 12 V
UM3036 - Rev 1 page 8/20
UM3036
Schematic diagrams
Figure 6. X-NUCLEO-OUT15A1 circuit schematic (2 of 2)
def aul t :
cl osed
VCC
FLT1
OUT1
FLT2
Nch-DRV
OUT_FB
3v35v0
/
ISO4
TLP383
12
43
DR1
150060RS75000
AC
DR2
150060RS75000
AC
ISO2
TLP383
12
43
R20
6.8k
ANY
ISO3
TLP383
12
43
R3
22k
C5
0.1uF
R8
10k
D4
STPS1H100A
DG1
150060VS75000
AC
C4
0.1uF
R21
2.2K
J10
default closed
SW4
con3-strip-male
default: CLOSE 1-2
1
2
3
R7 10k
TR3
SM15T10AY
R15
12k
R16
2.2K
J11
con8-2x4-strip-male
12 34
56 78
R10
0
D3
BAT41ZFILM
R11
2.2K
R18 390
J6
default closed
SW1
con3-strip-male
default: CLOSE 1-2
1
2
3
R6
2.2K
SW2
con3-strip-male
default: CLOSE 1-2
1
2
3
U1
IPS1025HF
1
VCC
NC2
2
NC3
3
FLT2
4
OUT6
6
OUT7
7
OUT8
8
OUT9
9
OUT10
10
OUT11
11
OUT12
12 OUT13 13
OUT14 14
OUT15 15
OUT16 16
OUT17 17
OUT18 18
OUT19 19
OUT20 20
FLT1 21
IPD1 22
IN1 23
OUT5
5
VCC
25
GND 24
R5
0
C9470nF
R17 27K
R2
390
J7
TP5
5001
C847nF
R9
0
TP1
5001
SW3
con3-strip-male
default: CLOSE 1-2
1
2
3
C7470pF
J12
default closed
C3
0.1uF
R4
0
J9
con6-2x3-strip-male
1 2
3 4
5 6
R1
27K
SW5
con3-strip-male
default: CLOSE 1-2
1
2
3
D8
TDZ6V2J,115
Q1
STN2NF10
2
1
3
4
ISO5
TLP383
12
43
R19 1k
R12
22k
ISO1
TLP383
12
43
J5
default closed
J8
TP3
5001
VCC
VCC
VCC
UM3036 - Rev 1 page 9/20
UM3036
Schematic diagrams
3Bill of materials
Table 3. X-NUCLEO-OUT15A1 bill of materials
Item Quantity Reference Part/value Description Manufacturer Order code
1 0 C1 C2
4700pF, 1825
(4564 Metric),
3000V (3kV),
+/-10%
CAP CER 4700PF
3KV X7R 1825
(not mounted)
Vishay
Vitramon HV1825Y472KXHATHV
2 3 C3 C4 C5
0.1uF, 0805 (2012
Metric), 100V,
+/-10%
CAP CER 0.1UF
100V X7R 0805
Würth
Elektronik 885012207128
3 1 C6
2.2uF, 1206 (3216
Metric), 100V,
+/-10%
CAP CER 2.2UF
100V X7R 1206
AVX
Corporation 12061C225KAT2A
4 1 C7
470pF, 0603 (1608
Metric), 50V,
+/-5%
CAP CER 470PF
50V C0G/NP0
0603
Wurth
Electronics Inc. 885012006061
5 1 C8
47nF, 0603 (1608
Metric), 16V,
+/10%
CAP CER
0.047UF 16V X7R
0603
Wurth
Electronics Inc. 885012206044
6 1 C9
470nF, 0603 (1608
Metric), 25V,
+/-10%
CAP CER 0.47UF
25V X7R 0603
Wurth
Electronics Inc. 885012206075
7 0 C10 100uF, Radial,
Can, 100V, +/-20%
CAP 100 UF
20% 100 V (not
mounted)
Würth
Elektronik 860130878011
8 1 CN1 691137710005
TERM BLK 5POS
SIDE ENTRY
5MM PCB
Würth
Elektronik 691137710005
9 0 CN2 691214110002,
7.4X7 pitch 3.5
TERM BLK
2POS SIDE ENT
3.5MM PCB (not
mounted)
Wurth
Electronics Inc. 691214110002
10 1 CN5 SSQ-110-04-F-S
CONN RCPT
10POS 0.1 GOLD
PCB
Samtec Inc. SSQ-110-04-F-S
11 2 CN6 CN9 SSQ-108-04-F-S
CONN RCPT
8POS 0.1 GOLD
PCB
Samtec Inc. SSQ-108-04-F-S
12 0 CN7 CN10 SSQ-119-04-L-D
CONN RCPT
38POS 0.1
GOLD PCB (not
mounted)
Samtec Inc. SSQ-119-04-L-D
13 1 CN8 SSQ-106-04-F-S
CONN RCPT
6POS 0.1 GOLD
PCB
Samtec Inc. SSQ-106-04-F-S
14 2 D1 D4 STPS1H100A,
SMA
100 V, 1 A power
Schottky rectifier ST STPS1H100A
15 0 D2 BAT48JFILM,SOD
-323
40 V, 350 mA
axial general
purpose Signal
Schottky diode
(not mounted)
ST BAT48JFILM
UM3036
Bill of materials
UM3036 - Rev 1 page 10/20
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