ST EVSPIN32G4-DUAL User manual

Introduction
The EVSPIN32G4-DUAL is a dual-motor demonstration board based on STSPIN32G4 and STDRIVE101.
The STSPIN32G4 is a system in package integrating in a 9x9 mm VFQFPN package, a triple high-performance half bridge gate
driver with a rich set of programmable features, and a mixed signal STM32G431 microcontroller. The STDRIVE101 is a triple
half-bridge gate driver in a compact 4x4 VFQFPN package featuring 600 mA current capability and embedded protections.
The two power stages based on STL110N10F7 power MOSFETs can simultaneously operate up to 10 ARMS output current and
74 V supply voltage, providing dedicated sensing for temperature and bus voltage, drain-source voltage monitoring of power
MOSFETs and overcurrent protection.
The board allows sensor-less operation with single-shunt current sensing, taking advantage of operational amplifiers in the
STSPIN32G4, as well as sensor-based control algorithms thanks to dedicated inputs for each motor, including Hall sensors,
incremental encoders and absolute encoders, via SSI communication interface.
The integrated voltage regulators generate the gate driver and control logic supplies directly from the motor supplies, without
further circuitry required.
The predisposition for CAN bus enables the EVSPIN32G4-DUAL to easily connect with master or slave modules, and build
complex motion control systems.
Getting started with the EVSPIN32G4-DUAL
UM2896
User manual
UM2896 - Rev 1 - September 2023
For further information contact your local STMicroelectronics sales office.
www.st.com

Figure 1. EVSPIN32G4-DUAL demonstration board
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UM2896 - Rev 1 page 2/27

1 Safety and operating instructions
1.1 General terms
Warning: During assembly, testing, and operation, the evaluation board poses several inherent
hazards, including bare wires, moving or rotating parts and hot surfaces.
Danger: There is danger of serious personal injury, property damage or death due to electrical shock
and burn hazards if the kit or components are improperly used or installed incorrectly.
The kit is not electrically isolated from the high-voltage supply AC/DC input. The evaluation board is directly linked
to the mains voltage. No insulation is ensured between the accessible parts and the high voltage. All measuring
equipment must be isolated from the mains before powering the board. When using an oscilloscope with the
demo, it must be isolated from the AC line. This prevents shock from occurring as a result of touching any single
point in the circuit, but does NOT prevent shock when touching two or more points in the circuit.
All operations involving transportation, installation, use, and maintenance must be performed by skilled technical
personnel able to understand and implement national accident prevention regulations. For the purposes of these
basic safety instructions, “skilled technical personnel” are suitably qualified people who are familiar with the
installation, use and maintenance of power electronic systems.
1.2 Intended use of evaluation board
The evaluation board is designed for demonstration purposes only, and must not be used for electrical
installations or machinery. Technical data and information concerning the power supply conditions are detailed in
the documentation and should be strictly observed.
1.3 Installing the evaluation board
• The installation and cooling of the evaluation board must be in accordance with the specifications and
target application.
• The motor drive converters must be protected against excessive strain. In particular, components should
not be bent or isolating distances altered during transportation or handling.
• No contact must be made with other electronic components and contacts.
• The board contains electrostatically-sensitive components that are prone to damage if used incorrectly. Do
not mechanically damage or destroy the electrical components (potential health risks).
1.4 Operating the evaluation board
To operate properly the board, follow these safety rules:
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Safety and operating instructions
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1. Work area safety:
– The work area must be clean and tidy.
– Do not work alone when boards are energized.
– Protect against inadvertent access to the area where the board is energized using suitable barriers
and signs.
– A system architecture that supplies power to the evaluation board must be equipped with additional
control and protective devices in accordance with the applicable safety requirements (i.e.,
compliance with technical equipment and accident prevention rules).
– Use non-conductive and stable work surface.
– Use adequately insulated clamps and wires to attach measurement probes and instruments.
2. Electrical safety:
– Remove power supply from the board and electrical loads before performing any electrical
measurement.
– Proceed with the arrangement of measurement setup, wiring or configuration paying attention to high
voltage sections.
– Once the setup is complete, energize the board.
Danger: Do not touch the evaluation board when it is energized or immediately after it has
been disconnected from the voltage supply as several parts and power terminals
containing potentially energized capacitors need time to discharge.
Do not touch the boards after disconnection from the voltage supply as several parts
like heat sinks and transformers may still be very hot.
The kit is not electrically isolated from the AC/DC input. The USB interface of the
board does not insulate host computer from high voltage. When the board is supplied
at a voltage outside the ELV range, a proper insulation method such as a USB isolator
must be used to operate the board.
3. Personal safety:
– Always wear suitable personal protective equipment such as, for example, insulating gloves and
safety glasses.
– Take adequate precautions and install the board in such a way to prevent accidental touch. Use
protective shields such as, for example, insulating box with interlocks if necessary.
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Operating the evaluation board
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2 Acronyms and definitions
Table 1. List of acronyms and definitions
Term Description
ADC Analog to Digital Converter.
CAN Controller Area Network communication standard used for data transmission among electronic control units
connected in a local network.
FOC Field Oriented Control driving algorithm for three-phase motors to control the position of the rotor magnetic
field with respect to the stator magnetic field.
Half-bridge Structure composed by one high-side and one low-side MOSFET connected (Refer to Figure 5). Each phase
of a three-phase motor is usually driven by a half-bridge structure.
MCU Microcontroller Unit
OPAMP Operational Amplifier
PGA Programmable Gain Amplifier.
PWM Pulse Width Modulation
Shunt resistor The resistor placed on the source of the low-side MOSFET to measure the current flowing in the load.
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Acronyms and definitions
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3 Hardware and software requirements
The use of the EVSPIN32G4-DUAL evaluation board requires the following software and hardware:
• A Windows ® PC (Windows 10) to install the software package.
• One STLINK-V3SET debugger/programmer or equivalent.
• Two 3-phase brushless DC motors with compatible voltage and current ratings.
• An external DC power supply with cables to connect the evaluation board.
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Hardware and software requirements
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4 Getting started
To use the board:
1. Connect the two motors to CON3 and CON4 connectors respecting the sequence for motor windings.
2. Connect the programmer and debugger to the board using connector J8 or alternatively J7.
3. Develop your application.
4. Supply the board via CON1 and CON2 connectors respecting polarity; LED3 and LED4 indicate the
presence of supply voltage.
5. Upload the firmware onto the STSPIN32G4 microcontroller with a dedicated tool such as
STM32CubeProgrammer
6. Run the motor.
Table 2. EVSPIN32G4-DUAL specifications
Parameter Value
Supply voltage Nominal From 10 V to 74 V
Maximum current
Peak 17 A
Continuous (1) 10 Arms
1. Maximum current at 25°C ambient temperature. Actual value may be limited by power dissipation.
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Getting started
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5 Hardware description and configuration
Figure 2. Connectors, jumpers, LEDs, switches and test points
U V W + -
U V W
- +
TP41
Ground
TP42
Ground
CON3
M1 phases
connector
CON4
M2 phases
connector
CON2
M2 power supply
connector
CON1
M1 power supply
connector
LED4
M2 supply
LED3
M1 supply
J6
M1 HALL connector
J14
M1 SPI connector
J11
voltage monitor
connector
J2
M1 SC protection
disabling
J15
CAN bus
connector
SW1
Reset switch
J8
SWD+UART
STSPIN32G4
connector
J10
UART
connector
U1
STSPIN32G4
J9
GPIOs
connector
J7
SWD
STPSIN32G4
connector
J13
I2C
connector
J12
M2 SPI connector
J5
M2 HALL connector
U2
STDRIVE101
J3
M2 SC protection
disabling
SW2
User switch
SW3
User switch
LED1
user led
LED2
user led
TP15
Ground
TR1
M1 Speed
trimmer
TR2
M2 Speed
trimmer
5.1 Connectors and test points
Table 3. Connectors
Name Pin Label Description
CON1
1 GND DC supply ground
2 VM DC supply voltage of motor 1
CON2
1 VM DC supply voltage of motor 2
2 GND DC supply ground
CON3
1 W Motor 1 winding 3
2 V Motor 1 winding 2
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Hardware description and configuration
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Name Pin Label Description
CON3 3 U Motor 1 winding 1
CON4
1 W Motor 2 winding 3
2 V Motor 2 winding 2
3 U Motor 2 winding 1
J2
1 DIS Short circuit protection disabling for motor 1. Default enabled (jumper OPEN)
2 VDSMON Short circuit protection threshold voltage
J3
1 DIS Short circuit protection disabling for motor 2. Default enabled (jumper OPEN)
2 VDSMON Short circuit protection threshold voltage
J5
1 M2_H1 Hall-effect sensor 1 / encoder out A+ of motor 2
2 M2_H2 Hall-effect sensor 2 / encoder out B+ of motor 2
3 M2_H3 Hall-effect sensor 3 / encoder zero feedback of motor 2
4 M2_VH Sensors supply voltage of motor 2
5 GND Sensors ground
J6
1 M1_H1 Hall-effect sensor 1 / encoder out A+ of motor 1
2 M1_H2 Hall-effect sensor 2 / encoder out B+ of motor 1
3 M1_H3 Hall-effect sensor 3 / encoder zero feedback of motor 1
4 M1_VH Sensors supply voltage of motor 1
5 GND Sensors ground
J7 - - 20 pin SWD connector for STSPIN32G4
J8 - - 14 pin SWD and UART connector for STSPIN32G4
J9
1 - PD2 pin of STSPIN32G4
2 - PB7 pin of STSPIN32G4
3 - PC3 pin of STSPIN32G4
4 DAC DAC output by pin PA4 of STSPIN32G4
5 GND Ground
J10
1 TX UART signal TX
2 RX UART signal RX
3 GND UART ground
J11
1 5V 5V output of LDK715M50R regulator
2 REG12 12V output of STDRIVE101 LDO regulator
3 VCC Output voltage of STSPIN32G4 Buck converter
4 VREGIN Input voltage of STSPIN32G4 LDO regulator
5 VBAT Microcontroller battery backup domain voltage
6 VDD 3.3V output of STSPIN32G4 LDO regulator
7 VDDA Microcontroller analog domain voltage
8 VREF Microcontroller analog reference voltage
9 GND Ground
J12
1 CS2 SPI CS signal for motor 2 absolute encoder
2 MISO SPI MISO signal for motor 2 absolute encoder
3 MOSI SPI MOSI signal for motor 2 absolute encoder
4 SCK SPI Clock signal for motor 2 absolute encoder
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Connectors and test points
UM2896 - Rev 1 page 9/27

Name Pin Label Description
J12 5 GND SPI Ground
J13
1 SCL I2C signal SCL
2 SDA I2C signal SDA
3 GND I2C ground
J14
1 CS1 SPI signal CS for motor 1 absolute encoder
2 MISO SPI signal MISO for motor 1 absolute encoder
3 MOSI SPI signal MOSI for motor 1 absolute encoder
4 SCK SPI signal Clock for motor 1 absolute encoder
5 GND SPI ground
J15
1 H CAN bus signal high
2 L CAN bus signal low
3 GND CAN bus ground
4 SH CAN bus shielding
Table 4. Test points
Name Description
TP1 Voltage of VDD supply
TP2 Voltage of VDDA supply
TP3 Voltage of VERF+ supply
TP4 Voltage of REG12 supply
TP5 Voltage of VCC supply
TP6 Voltage of VREGIN inputs
TP7 nFAULT pin of STDRIVE101
TP8 INH1 input of STDRIVE101
TP9 Input voltage of STDRIVE101 overcurrent comparator
TP10 INH2 input of STDRIVE101
TP11 INH3 input of STDRIVE101
TP12 INL3 input of STDRIVE101
TP13 INL2 input of STDRIVE101
TP14 INL1 input of STDRIVE101
TP15 Ground
TP16 5V supply
TP17 Ground
TP18 Voltage of Operational Amplifier 1 non-inverting input
TP19 Voltage of Operational Amplifier 1 output
TP20 Voltage of motor 1 NTC
TP21 Bus voltage of motor 1
TP22 Attenuated bus voltage of motor 1
TP23 Voltage of trimmer 1
TP24 Ground
TP25 Voltage of Operational Amplifier 1 inverting input
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Connectors and test points
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Name Description
TP26 Voltage of Operational Amplifier 2 non-inverting input
TP27 Voltage of Operational Amplifier 2 output
TP28 Voltage of motor 2 NTC
TP29 Attenuated bus voltage of motor 2
TP30 Bus voltage of motor 2
TP31 Voltage of trimmer 2
TP32 Ground
TP33 Voltage of Operational Amplifier 2 inverting input
TP34 Ground
TP35 Motor 1 Hall sensor 1
TP36 Motor 1 Hall sensor 2
TP37 Motor 1 Hall sensor 3
TP38 Motor 2 Hall sensor 2
TP39 Motor 2 Hall sensor 2
TP40 Motor 2 Hall sensor 3
TP41 Power ground
TP42 Power ground
5.2 User interface
The board provides following user interface components:
• Trimmer TR1: to set, for example, the target speed of motor 1.
• Trimmer TR1: to set, for example, the target speed of motor 2.
• Switch SW1: to reset the STSPIN32G4.
• Switch SW2: user switch 1.
• Switch SW3: user switch 2.
• LED1: user yellow LED, also turns on when user switch 1 is pressed.
• LED2: user yellow LED, also turns on when user switch 2 is pressed.
• LED3: system red LED, turns on when supply voltage of motor 1 is present.
• LED4: system red LED, turns on when supply voltage of motor 2 is present.
5.3 Programming and debugging
The EVSPIN32G4-DUAL evaluation board provides two connectors to program and debug firmware:
• J7, Legacy Arm 20 pin connector featuring SWD interface of SPIN32G4.
• J8, STDC14 connector including both SWD and UART interfaces.
The STLINK-V3SET debugger/programmer can be used to connect J7 or J8. When selecting J7, it is possible to
use UART on the J10 connector if VCP (Virtual Comm Port) is also required for communication with PC.
5.4 Hall sensors and encoders
The EVSPIN32G4-DUAL evaluation board supports 3 different type of sensors for position feedback:
1. Digital Hall sensors.
2. Quadrature encoder.
3. Absolute encoders with Synchronous Serial Interface (SSI).
Inputs for digital Hall sensors or quadrature encoders are available by default on J6 and J5 connectors for motor 1
and motor 2, respectively (see Table 3).
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User interface
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For sensors requiring an external pull-up, three 10 kΩ resistors are already mounted on the output lines and
connected to the VDD voltage. Each line is filtered by an RC low-pass filter and footprints for pull-down resistors
are also available.
The sensor supply voltage is selected through one of the following solder jumpers:
• 5V (default configuration): R119 for motor 1 and R114 for motor 2.
• VCC (8 V to 15 V): R120 for motor 1 and R115 for motor 2
• VDD (3.3 V): R121 for motor 1 and R116 for motor 2.
Note: Only one solder jumper must be mounted
Sensor outputs for motor 1 are connected to the PB4, PB5 and PB0 pins of the microcontroller and can be routed
to the respective TIM_CH1, TIM_CH2 and TIM_CH3 channels of timer TIM3, while sensor outputs for motor 2 are
connected to PA0, PA1 and PB10 pins of the microcontroller and can be routed to the respective TIM_CH1,
TIM_CH2 and TIM_CH3 channels of timer TIM2.
To use absolute SSI encoders, the solder jumpers R106, R109 and R112 must be removed and inputs for motor 1
Hall sensors and quadrature encoder are disabled. The SPI1 peripheral can be shared between two absolute
encoders with dedicated chip select pin (refer to J12 and J14 in Table 3 for connection details).
Note: Absolute SSI encoders may require an external RS422/485 transceiver not provided with the board.
5.5 Overcurrent protection
The EVSPIN32G4-DUAL evaluation board implements double protection of each power stage from overcurrent
condition thanks to:
1. Drain-source voltage monitoring of each power MOSFETs.
2. Comparators sensing the shunt current.
5.5.1 Drain-source voltage monitoring
The STSPIN32G4 and STDRIVE101 embed circuitry which measures the voltage between the drain and the
source of each MOSFET (VDS) for comparison with a set threshold. When the MOSFET is turned on and its VDS
is greater than the threshold, the anomalous condition is detected and following a deglitch time the protection is
triggered in which all MOSFETs are turned off regardless of the driving inputs.
The threshold is set on the SCREF pins of the STSPIN32G4 and STDRIVE101 through the resistor dividers given
by R2 and R5 for motor 1 or R4 and R6 for motor 2. The thresholds can be measured via pin 2 of J2 and J3
connectors and are approximately 1.03 V.
The STSPIN32G4 allows setting the deglitch filtering time via firmware to 2 µs, 3 µs, 4 µs or 6 µs (default), while
the STDRIVE101 implements a fixed filtering time of 4.4 µs (typ.).
The protections remain latched when triggered: the STSPIN32G4 returns to an operational state by forcing all the
driving inputs low for at least 100 µs or via firmware, while the STDRIVE101 must enter and leave standby.
The voltage drop on each low-side MOSFETs is measured between its drain and GND, so the voltage drop on the
shunt resistor contributes to the measurement.
Although not recommended, the protections can be disabled by closing jumpers J2 and J3.
For details regarding VDS monitoring, refer to the STSPIN32G4 and STDRIVE101 datasheets.
5.5.2 Embedded comparators
The evaluation board implements overcurrent protection with comparator integrated in the STSPIN32G4 for motor
1 and comparator in the STDRIVE101 for motor 2. The current of both motors is measured via the voltage drop
produced on respective shunt resistors. When peak current exceeds a selected threshold, the protection is
triggered.
The protection on motor 1 is not enabled by default: the fast COMP2 rail-to-rail comparator in the STSPIN32G4
must be configured via firmware to stop PWM generation of timer TIM1. The positive input of the comparator must
be connected to the PA3 pin of the microcontroller, where the current measurements across the shunt resistor is
available (test points TP18), while negative input can be internally connected to the DAC channel or a partition of
the internal reference voltage, Vrefint, to set an appropriate overcurrent threshold.
With reference to Figure 4, the overcurrent threshold can be derived with the following equation:
IOC =VTH − VREF +∙R77//R78
R76+R77//R78 ∙R77 + R76//R78 R76//R78 ∙1
RS(1)
• IOC is the resulting overcurrent threshold
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Overcurrent protection
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• VTH is the threshold voltage applied to the comparator negative input
• VREF+- is the voltage of VREFP pin (3.3 V by default)
• RS is the value of the shunt resistor (10 mΩ by default)
Overcurrent thresholds computed for different threshold voltages are given in the following table.
Table 5. Overcurrent thresholds
Threshold Peak current
DAC (VDAC - 0.206 V) ∙ 114 A/V
Vrefint 113 A
3/4 Vrefint 79 A
1/2 Vrefint 45 A
1/4 Vrefint 11 A
To avoid spurious triggering of the protection, digital deglitch filtering or blanking can be also configured. For
details refer to the STM32G4 reference manual.
The protection of motor 2 is active by default: STDRIVE101 detects an overcurrent condition when the voltage on
its CP pin (test point TP9) rises above the internal voltage threshold and automatically switches off all GHSx and
GLSx outputs. With reference to Figure 6, the overcurrent threshold can be derived by the following equation:
IOC =VREF − VDD ∙R8//R11
R11 + R8//R11 ∙R8 + R10//R11 R10//R11 ∙1
RS(2)
• IOC is the resulting overcurrent threshold
• VREF is the internal threshold voltage applied to the comparator negative input (typ. 505 mV)
• VDD is the voltage of REG3V3 pin (typ. 3.3 V)
• RS is the value of the shunt resistor (10 mΩ by default)
The R11 resistor is not mounted by default, so the overcurrent threshold is 22 A since R8//R11=R8 and R10//
R11=R10.
To avoid spurious triggering of the protection, a filter time of 2 µs is implemented via capacitor C19.
5.6 Current sensing
The evaluation board manages the sensing of current flowing through motor windings in both directions, as
required by Field Oriented Control algorithms. With reference to schematic in Figure 6, the sensing is based on
the operational amplifiers (OPAMPs) integrated in the STSPIN32G4 microcontroller. A differential current sensing
method is implemented for better rejection of common mode signals with OPAMP1 and OPAMP2 dedicated to
motor 1 and motor 2, respectively.
The output of OPAMP1, PA2 (test point TP19), can be connected to channel 3 of ADC1, while the PA6 output of
OPAMP2 (test point TP27) can be connected to channel 3 of ADC2 to implement current measurements.
The gain of the network is:
VO
I=G ∙ RS= 7 ∙10m
Ω = 0.07 V
A(3)
• VO is the amplified output voltage
• I is the current flowing in motor winding
• G is the gain of the amplifying network (R84/R83 for motor 1 and R93/R92 for motor 2)
• RS is the value of shunt resistors (10 mΩ by default)
Footprints are available to mount filtering capacitors on OPAMP feedback (C38 and C42).
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Current sensing
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5.7 Bus voltage sensing
The evaluation board provides the sensing of bus voltages that can be used by firmware to implement
undervoltage protection. These signals are set through a voltage divider with attenuation 0.04 by the motor supply
voltage (resistors R79, R82 and R88, R91), filtered (capacitors C40 and C44) and sent to microcontroller pins
PB1 (test point TP22) for motor1 and PC1 (test point TP29) for motor 2. PB1 can be connected to the positive
input of comparator COMP1 or to channel 12 of ADC1, while PC1 can be connected to the positive input of
comparator COMP3 or to channel 7 of ADC2.
5.8 PCB temperature sensing
The board provides NTC thermistors placed near the power stages to sense the temperature of surrounding
MOSFETs. The thermistors can be used by firmware to implement thermal shutdown and protect the power
stages in case of overheating. The signals for motor 1 and motor 2 are available on PC0 (test point TP20) and
PC2 (test point TP28) pins of the MCU, and can be routed to channel 6 of ADC1 and channel 8 of ADC2,
respectively.
The following equation, derived from the β model for NTC thermistors, can be used to obtain temperature
estimates from voltage values on PC0 or PC2:
T VPC0=1

1
β∙ ln
R40 ∙VREFP
VPC0−1
RNTC
0+1
T0

(4)
• T(VPC0) is the estimated temperature in Kelvin
• VPC0 is the voltage on PC0 pin (PC2 for motor 2)
• ß is 3455 K, the β constant of selected NTC thermistor in the range 25°C – 100°C
• R0 NTC is 10 kΩ, the thermistor resistance at 298 K
• T0 is 298 K
The following figure shows a plot of the above equation.
Figure 3. Thermistor temperature with respect to voltage on PC0 or PC2 pins
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Bus voltage sensing
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5.9 Input strategy selection
By default, the board is configured to drive STDRIVE101 via ENx/INx mode. All enable signals ENx are shorted
together and driven by the microcontroller through pin PB7, while PWM signals are generated via channel 1, 2
and 3 of timer TIM8 on PA15, PB8 and PB9 pins. Referring to Table 6, when enable signals are low, the gate
driver outputs GHSx and GLSx are disabled, regardless of the INx inputs, while PWM signals are provided to
outputs with enable signals high. A deadtime of 530 µs (typ.) is inserted between a MOSFET turn off and the turn
on of its counterpart.
Table 6. ENx and INx inputs truth table
ENx INx GHSx GLSx Half-bridge condition
L X L L Disabled
H L L H Low-side on
H H H L High-side on
It is possible to drive STDRIVE101 using INxH/INxL mode by removing R12, R13, R14, R106, R109 and
mounting R9, R15, R16 and R1 as zero ohm resistors. With reference to Table 7, digital inputs provide direct
driving of high-side and low-side MOSFETs with interlocking to prevent accidental cross conduction of the power
stage. Unlike the previous driving mode, the deadtime must be directly applied by the microcontroller.
Table 7. INxL and INxH inputs truth table
INxH INxL GHSx GLSx Half-bridge condition
L L L L Disabled
L H L H Low-side on
H L H L High-side on
H H L L Disabled (interlocking)
Note: In this configuration, it is not possible to use Hall sensors and quadrature encoder for motor 2 or absolute
encoders.
5.10 CAN bus
The STSPIN32G4 integrates an FDCAN communication interface to manage the data layer of the CAN protocol.
The interface is compliant with ISO 11898-1: 2015 (CAN protocol specification version 2.0 part A, B) and CAN FD
protocol specification version 1.0. The physical layer of the CAN protocol is managed by an external transceiver,
the TCAN330 (not mounted by default).
R128 can be mounted if bus termination is required. Connection to the CAN bus is available via J15 connector,
which also provides a terminal for cable shielding with optional connection to board ground via solder jumper
R130.
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Input strategy selection
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6 Bill of material
Table 8. EVSPIN32G4-DUAL bill of materials
Item Q.ty Reference Description Value
1 2 CON1, CON2 SERIE 4147 - 5.00 MM SCREWLESS
45° ENTRY 2.00 MM² WIRES WR-TBL 691414720002B
2 2 CON3, CON4 SERIE 4147 - 5.00 MM SCREWLESS
45° ENTRY 2.00 MM² WIRES WR-TBL 691414720003B
3 1 C1 SMT ceramic capacitor 0805 10 µF, 6.3 V, 10%
4 6 C2, C3, C5, C10, C21, C60 SMT ceramic capacitor 0603 100 nF, 6.3 V, 10%
5 3 C4, C6, C23 SMT ceramic capacitor 0603 1 µF, 6.3 V, 10%
6 2 C7, C16 SMT ceramic capacitor 0805 10 µF, 25 V, 10%
7 1 C8 SMT ceramic capacitor 0603 100 nF, 25 V, 10%
8 7 C9, C26, C27, C28, C32, C33, C34 SMT ceramic capacitor 0805 220 nF, 100 V, 10%
9 4 C11, C14, C38, C42 SMT ceramic capacitor 0603 N.M.
10 1 C12 SMT ceramic capacitor 0805 1 µF, 100 V, 10%
11 1 C13 SMT ceramic capacitor 0805 100 nF, 100 V, 10%
12 3 C15, C17, C22 SMT ceramic capacitor 0805 100 nF, 25 V, 10%
13 2 C18, C20 SMT ceramic capacitor 0402 6.8 pF, 6.3 V, 0.25 pF
14 1 C19 SMT ceramic capacitor 0603 2.2 nF, 6.3 V, 10%
15 8 C24, C25, C52, C53, C54, C57,
C58, C59 SMT ceramic capacitor 0603 1 nF, 6.3 V, 10%
16 6 C29, C30, C31, C35, C36, C37 SMT ceramic capacitor 0805 1 µF, 25 V, 10%
17 6 C39, C40, C41, C43, C44, C45 SMT ceramic capacitor 0603 33 nF, 6.3 V, 10%
18 6 C46, C47, C48, C49, C50, C51 THT Electrolytic Capacitor D500p200 100 µF, 100 V, 20%
19 2 C55, C56 SMT ceramic capacitor 0603 100 nF, 25 V, 10%
20 1 D1 High Voltage Power Schottky Rectifier STPS1H100A, 100 V
21 12 D2, D3, D4, D5, D6, D7, D8, D9,
D10, D11, D12, D13 Small signal Schottky diode BAT48, 40 V
22 8 D14, D15, D16, D17, D18, D19,
D20, D21 Small signal Schottky diodes BAT30K, 30 V
23 2 J1, J4 Jumper OPEN
24 2 J2, J3 Strip connector 2 pos, 2.54 mm STRIP 1x2
25 5 J5, J6, J9, J12, J14 Strip connector 5 pos, 2.54 mm STRIP 1x5
26 1 J7 Male Box Header 2x10 header
27 1 J8 SMT Micro Header pitch 1.27 mm SAMTEC FTSH-107-01-L-DV-K-A
28 2 J10, J13 Strip connector 3 pos, 2.54 mm STRIP 1x3
29 1 J11 Strip connector 9 pos, 2.54 mm STRIP 1x9
30 1 J15 Strip connector 4 pos, 2.54 mm STRIP 1x4
31 2 LED1, LED2 WL-SMCW SMT Mono-color Chip LED
Waterclear YELLOW
32 2 LED3, LED4 WL-SMCW SMT Mono-color Chip LED
Waterclear RED
33 1 L1 WE-PD2 SMT Power Inductor 18 µH, 1 A
34 2 NET2, NET3 PCB Net N.M.
UM2896
Bill of material
UM2896 - Rev 1 page 16/27

Item Q.ty Reference Description Value
35 2 NTC1, NTC2 NTC Thermistor 10 kΩ, 1%
36 12 Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8,
Q9, Q10, Q11, Q12
N-channel 100 V, 5 mΩ typ., 107 A
STripFET F7 Power MOSFET STL110N10F7
37 16
R1, R3, R12, R13, R14, R20, R21,
R22, R25, R80, R89, R106, R109,
R112, R114, R119
SMT resistor 0805 0 Ω, 0.1 W, 5%
38 2 R2, R4 SMT resistor 0603 22 kΩ, 0.1 W, 1%
39 3 R5, R6, R10 SMT resistor 0603 10 kΩ, 0.1 W, 1%
40 14
R7, R98, R99, R100, R101, R102,
R103, R104, R105, R107, R108,
R110, R111, R129
SMT resistor 0603 10 kΩ, 0.1 W, 5%
41 5 R8, R77, R83, R86, R92 SMT resistor 0603 1 kΩ, 0.1 W, 1%
42 1 R9 SMT resistor 0603 51 kΩ, 0.1 W, 5%
43 1 R11 SMT resistor 0603 N.M.
44 9 R15, R16, R17, R115, R116, R120,
R121, R125, R130 SMT resistor 0805 N.M.
45 3 R18, R28, R29 SMT resistor 0603 100 kΩ, 0.1 W, 5%
46 3 R19, R23, R24 SMT resistor 0603 200 Ω, 0.1 W, 5%
47 3 R26, R27, R128 SMT resistor 0603 120 Ω, 0.1 W, 5%
48 18
R30, R31, R33, R39, R40, R41,
R42, R43, R44, R53, R54, R55,
R62, R63, R64, R65, R66, R69
SMT resistor 0603 0 Ω, 0.1 W, 5%
49 12 R32, R34, R35, R45, R46, R47,
R56, R57, R58, R67, R68, R70 SMT resistor 0603 33 Ω, 0.1 W, 5%
50 12 R36, R37, R38, R48, R49, R50,
R59, R60, R61, R71, R72, R73 SMT resistor 0603 N.M.
51 2 R51, R74 SMT resistor 2512 N.M.
52 2 R52, R75 SMT resistor 2512 0.01 Ω, 2 W, 1%
53 4 R76, R78, R85, R87 SMT resistor 0603 14 kΩ, 0.1 W, 1%
54 2 R79, R88 SMT resistor 0603 72.3 kΩ, 0.1 W, 1%
55 2 R81, R90 SMT resistor 0603 4.7 kΩ, 0.1 W, 1%
56 2 R82, R91 SMT resistor 0603 3.01 kΩ, 0.1 W, 1%
57 2 R84, R93 SMT resistor 0603 7 kΩ, 0.1 W, 1%
58 4 R94, R95, R96, R97 SMT resistor 0805 4.7 kΩ, 0.5 W, 5%
59 6 R113, R117, R118, R122, R123,
R124 SMT resistor 0603 N.M.
60 2 R126, R127 SMT resistor 0603 2.2 kΩ, 0.1 W, 5%
61 6 SC1, SC2, SC3, SC4, SC5, SC6 M3 Cheese-head screw M3
62 6 SP1, SP2, SP3, SP4, SP5, SP6 M3 F-F Hexagonal spacer 20 mm 222424
63 3 SW1, SW2, SW3 TACTILE SWITCHES - 6x6 J-bend SMT 430483025816
64 35
TP1, TP2, TP3, TP4, TP5, TP6,
TP7, TP8, TP9, TP10, TP11, TP12,
TP13, TP14, TP16, TP18, TP19,
TP20, TP21, TP22, TP23, TP25,
TP26, TP27, TP28, TP29, TP30,
TP31, TP33, TP35, TP36, TP37,
TP38, TP39, TP40
Test point PCB - 1.5 mm diameter N.M.
65 3 TP15, TP41, TP42 40x71 mils SMD PAD TP-SMD-S1751-46R
UM2896
Bill of material
UM2896 - Rev 1 page 17/27

Item Q.ty Reference Description Value
66 4 TP17, TP24, TP32, TP34 Test Point PCB N.M.
67 2 TR1, TR2 3/8 Square Trimpot trimming
potentiometer, side adjust 100 kΩ
68 1 U1 3-phase brushless motor controller
embedding STM32G4 MCU STSPIN32G4
69 1 U2 Three-phase gate driver STDRIVE101
70 1 U3 High input voltage 85 mA LDO linear
regulator LDK715M50R
71 1 U4 TCAN33x 3.3-V CAN Transceivers with
CAN FD (Flexible Data Rate) N.M.
72 1 X1 LOW PROFILE QUARTZ CRYSTAL 24.000MHZ
UM2896
Bill of material
UM2896 - Rev 1 page 18/27

7 Schematics
Figure 4. EVSPIN32G4-DUAL schematic (1 of 4): STSPIN32G4 and STDRIVE101
USER2USER1
M1_NTC
M2_H1
OPO1
M2_H2
M2_VBUS
M2_NTC
M2_INL3 M2_INL1 M2_INL2
nRST
M2_SPEED
FDCAN1_RX
FDCAN1_TX
M2_H3
UART1_RX
SPI_CS1
SPI_CS2
M1_SW
M1_H2
M1_H3
M1_H1
OPO2 OPN2 OPP2
OPP1
OPN1
DIS
UART1_TX
I2C2_SDA
SPI1_MOSI SPI1_MISO SPI1_SCK
M2_ENx
RESET
VDSMON DIS
VDSMON
I2C2_SCL
SWCLK
SWDIO
CAN_SD
M2_SW M1_VBUS
INH1
INH2
INH3
INL3
INL2
INL1
M2_nFAULT
M2_OCP
M1_SPEED
DAC1_O1
GND
VREGIN
VREF+
VDDA
VDD
5V
VCC
VREF+
Ioc~22A (2us)
GND
M2_INH1
M2_INH2
M2_INH3
M2_INH1 M2_INH2
M2_INH3 M2_nFAULT
M2_nFAULT
VREF+
VDD
VDD
VREF+
VCC
VBAT
VDDA
VDD
VREGIN
VDDA
VCC
REG12
VREGIN
VBATVDD
VDD VDDA
M2_VM
VREF+VDDA
REG12
VDD
VCC
VDD
VDD
VDD
M1_VM
VBAT
VDD
VCC 5V
VREGIN
VDD
M1_GLS2 M1_GLS3
PC2
PC3
M1_OUT1
M1_GHS1
M1_BOOT1
M1_OUT2
M1_BOOT2
M1_GHS2
M1_OUT3
M1_GHS3
M1_BOOT3
PB7
M1_GLS1
PA8
PA9
PA10
PA11
PA12
PA5
PC13
PC14
PC15
PA0
PA1
PA3
PA2
PG10
PA4
PA6 PA7 PC4
PC5
PB0 PB10
PA13 PA14
PC0
PC1
PB5 PB4 PB3
PB4
PB3
PB5
PB7
PG10
M2_GHS1
M2_BOOT1
M2_OUT1
M2_GHS2
M2_OUT2
M2_OUT3
M2_BOOT2
M2_GHS3 M2_BOOT3
M2_GLS1
M2_GLS2
M2_GLS3
PD2
PB2 PB1
M2_SHUNT+
PC13 PB2
C10
100nF
R24
200
R2
22k
1%
C1
10uF
TP14
C2
100nF
C7
10uF
25V
R19
200
R4
22k
1%
TP15
R6
10k
1%
C14
N.M.
SW1
1 2
3 4
R10
10k
1%
C21
100nF
R29
100k
U1
STSPIN32G4
BOOT1 41
BOOT2 38
BOOT3 35
GHS1 43
GHS2 40
GHS3 37
GLS1
29
GLS2
30
GLS3
31
OUT1 42
OUT2 39
OUT3 36 PA0
13
PA1
14
PA10 46
PA11 47
PA12 48
PA13 49
PA14 50 PA15 51
PA2
15
PA3
16
PA4
17
PA5
18
PA6
19
PA7
20
PA8 44
PA9 45
PB0
23
PB1
24
PB10
28
PB2
25
PB3 54 PB4 55 PB5 56
PB6 57 PB7 58 PB8 59
PB9 60
PC0
9
PC1
10
PC13
3
PC14
4
PC15
5
PC2
11
PC3
12
PC4
21
PC5
22
PD2 53
PF0
6
PF1
7
PG10
8
PGND
32
REG3V3/VDD
1
REGIN 64
SCREF 52
SW 62
VBAT
2
VCC 63
VDDA
27
VM 61
VREFP
26 65
VSS
C4
1uF
R8
1k
1%
C8
100nF
25V
C11
N.M.
U3 LDK715M50R
IN
4
GND
2
OUT 5
J4
OPEN
U2
STDRIVE101 BOOT1 21
BOOT2
17
BOOT3
13
CP 1
DT_MODE 2
GHS1 22
GHS2
18
GHS3
14
GLS1 24
GLS2 20
GLS3
16
Epad/GND
25
INH1_IN1
7
INH2_IN2
8
INH3_IN3
9
INL1_EN1
10
INL2_EN2
11
INL3_EN3
12
OUT1 23
OUT2 19
OUT3
15 REG12 5
SCREF 3
VS 4
nFAULT 6
TP10
TP3
C22
100nF
25V
TP7
J1
OPEN
TP9
C3
100nF
R220
C16
10uF
25V
SW2
1
2
3
4
R27
120
L1 18uH
1 2
GND
GND
24.000MHZ
X1
1
2
3
4
TP2
R250
R7
10k
TP1
R200
R5
10k
1%
C13
100nF
100V
C12
1uF
100V
R15 N.M.
C24
1nF
TP11
R210
TP16
R28
100k
TP6
C19
2.2nF
TP5
R16 N.M.
LED2
YELLOW
1 2
R3
0
TP8
LED1
YELLOW
1 2
R18
100k
R1
0
R17 N.M.
SW3
1
2
3
4
TP4
R26
120
C6
1uF
C23
1uF
C5
100nF
R12 0
R9
51k
R23
200
R13 0
J2
1
2
R11
1%
N.M.
C17
100nF
25V
C18
6.8pF
TP17
J3
1
2
D1
STPS1H100A
12
TP12
R14 0
TP13
C15
100nF
25V
C9
220nF
100V
C20
6.8pF
C25
1nF
UM2896 - Rev 1 page 19/27
UM2896
Schematics

Figure 5. EVSPIN32G4-DUAL schematic (2 of 4): Power stages
GND
GND
M1_VM M1_VM M1_VM
M2_VM M2_VM M2_VM
M1_OUT1
M1_GHS1
M1_BOOT1
M1_U
M1_GLS1
M1_OUT2
M1_GHS2
M1_BOOT2
M1_V
M1_GLS2
M1_OUT3
M1_GHS3
M1_BOOT3
M1_W
M1_GLS3
M2_OUT1
M2_GHS1
M2_BOOT1
M2_U
M2_GLS1
M2_OUT2
M2_GHS2
M2_BOOT2
M2_V
M2_GLS2
M2_OUT3
M2_GHS3
M2_BOOT3
M2_W
M2_GLS3
M2_SHUNT-
M2_SHUNT+
M1_SHUNT-
M1_SHUNT+
R60
N.M.
R34
33
Q3
STL110N10F7
1
4
5
2 3
6 7 8
R58
33
C27
220nF
100V
1 2
D3
BAT48
Q11
STL110N10F7
1
4
5
2 3
6 7 8
Q2
STL110N10F7
1
4
5
2 3
678
R69
0
R40
0
R39
0
R44
0
R53
0
1 2
R47
33
R56
33
R74
0.01
1%
2W
N.M.
R55
0
C30
1uF
25V
R70
33
R33
0
Q9
STL110N10F7
1
4
5
2 3
6 7 8
R32
33
D7
BAT48
R71
N.M.
D8
BAT48
D13
BAT48
C32
220nF
100V
R35
33
R42
0
D2
BAT48
Q12
STL110N10F7
1
4
5
2 3
6 7 8
TP41
R62
0
C29
1uF
25V
R57
33
Q6
STL110N10F7
1
4
5
2 3
6 7 8
C26
220nF
100V
D4
BAT48
C34
220nF
100V
C28
220nF
100V
D10
BAT48
R64
0
D12
BAT48
R51
0.01
1%
2W
N.M.
Q4
STL110N10F7
1
4
5
2 3
6 7 8
R41
0
C35
1uF
25V
R37
N.M.
R75
0.01
1%
2W
R46
33
R65
0
Q8
STL110N10F7
1
4
5
2 3
6 7 8
D5
BAT48
R72
N.M.
D9
BAT48
R68
33
C31
1uF
25V
R49
N.M.
C33
220nF
100V
C37
1uF
25V
TP42
R63
0
D11
BAT48
Q1
STL110N10F7
1
4
5
2 3
6 7 8
Q10
STL110N10F7
1
4
5
2 3
6 7 8
R59
N.M.
R52
0.01
1%
2W
Q5
STL110N10F7
1
4
5
2 3
6 7 8
C36
1uF
25V
R36
N.M.
R66
0
R43
0
R38
N.M.
R61
N.M.
R45
33
R54
0
R67
33
R31
0
Q7
STL110N10F7
1
4
5
2 3
6 7 8
R50
N.M.
D6
BAT48
R48
N.M.
R30
0
R73
N.M.
UM2896 - Rev 1 page 20/27
UM2896
Schematics