4 layers95.9 × 96.5 mm
2 layers40 × 24 mm
BLDC driver
walmis/BLDC-Servo43FOC Motor Controller for 57BLF0x NEMA brushless motor
- Size
- 40 × 24 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 107
- Nets
- 87
- Pads
- 397
- Tracks, vias
- 1,101, 383
- Pours
- 17
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 15 Jun 2020
- Updated
- 18 Jun 2022
Overview
BLDC driver is an open-source printed circuit board by walmis, from the walmis/BLDC-Servo repository on GitHub. It is a 2-layer board of 40 × 24 mm with 107 parts on 87 nets, routed with 1,101 tracks and 383 vias.
It is built around the STM32L412CBU6, SN75176AD and MIC5504-3.3YM5, with the FDMS8018, BC807 and SMAJ24A among its other parts. Its parts include 37 capacitors, 37 resistors, 9 ICs, 7 transistors and 4 diodes. It belongs with the robots and motor control boards and the STM32 boards of this library.
Main components
6
STM32L412CBU6
QFN-48-EP(7x7)-40℃~+85℃ 1.71V~3.6V 128KB 12bit 32 Bit 38 40KB 80MHz ARM Cortex-M4 Built-in FLASH QFN-48-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
SN75176AD
SOIC-80℃~+70℃ 1 1 4.75V~5.25V 5Mbps Transceiver SOIC-8 RS-485 / RS-422 ICs ROHSTexas InstrumentsRS-485/RS-422 ICs
MIC5504-3.3YM5
SOT-23-5-40℃~+125℃@(Tj) 1 120uVrms 15uA 180mV@(300mA) 3.3V 300mA 5.5V 75dB@(1kHz) Fixed Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTECH PUBLICVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
FDMS8018
Power-56-8-55℃~+150℃ 1 N-channel 1.8mΩ@10V 175A 1V 210pF 30V 5.235nF 83W Power-56-8 MOSFETs ROHSonsemiMOSFETs
BC807
SOT-23-65℃~+150℃ 1 PNP 100 100nA 345mW 45V 500mA 5V 700mV 80MHz PNP SOT-23 Bipolar (BJT) ROHSNexperiaBipolar (BJT)
SMAJ24A
DO-214AC(SMA)-55℃~+150℃ 10.3A 24V 26.7V 38.9V 400W 5uA TVS Unidirectional DO-214AC(SMA) ESD and Surge Protection (TVS/ESD) ROHSGOODWORKESD And Surge Protection (TVS/ESD)
README
README.mdBLDC-Servo
This project implements a FOC motor controller board for 57BLF0x series NEMA brushless motor.
The project goals are:
- to be inexpensive
- fully support FOC drive
- smooth operation for FFB devices
- Large stalled torque == relatively large current drive
The main components are:
- STM32L412 or STM32F103C8T6 MCU
- NCP81151 - MOSFET Gate drivers
- NCS213/INA213 current sense amplifiers
- FDMS8018 N-channel MOSFETS (can be any TDSON-8 30V>= MOSFETS with required current rating)
- MP2359 DC-DC step-down
- SN75176B RS485 transceiver
The board attaches directly to the motor casing with mosfets in direct contact (with thermal paste). This makes a good heatsink for power dissipation.
Parts
107| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 100nF | Capacitor_SMD:C_0402_1005Metric | C4, C5, C6, C7, C9, C13, C18, C20, C21, C23, C28, C29, C30, C35, C36, C37 |
| 10 | 10uF | Capacitor_SMD:C_1206_3216Metric | C1, C2, C3, C10, C11, C12, C15, C16, C17, C27 |
| 7 | 1k | Resistor_SMD:R_0402_1005Metric | R4, R5, R6, R19, R20, R33, R34 |
| 6 | FDMS8018 | Package_TO_SOT_SMD:TDSON-8-1 | Q1, Q2, Q3, Q4, Q5, Q6 |
| 4 | 100 | Resistor_SMD:R_0402_1005Metric | R16, R21, R23, R24 |
| 4 | 10k | Resistor_SMD:R_0402_1005Metric | R1, R10, R11, R13 |
| 4 | 1uF | Capacitor_SMD:C_0402_1005Metric | C8, C14, C19, C24 |
| 3 | 0 | Resistor_SMD:R_0603_1608Metric | R22, R31, R32 |
| 3 | 1 | Resistor_SMD:R_0402_1005Metric | R35, R36, R37 |
| 3 | 10 | Resistor_SMD:R_0402_1005Metric | R28, R29, R30 |
| 3 | 1R | Resistor_SMD:R_0402_1005Metric | R25, R26, R27 |
| 3 | 22nF | Capacitor_SMD:C_0402_1005Metric | C22, C33, C34 |
| 3 | NCP81151B | Package_DFN_QFN:DFN-8-1EP_2x2mm_P0.5mm_EP0.9x1.5mm | U1, U4, U5 |
| 3 | Net-Tie_2 | NetTie:NetTie-2_SMD_Pad0.5mm | NT1, NT2, NT3 |
| 2 | 0.001 | Resistor_SMD:R_1210_3225Metric | R14, R15 |
| 2 | 100k | Resistor_SMD:R_0402_1005Metric | R7, R12 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R17, R18 |
| 2 | 1nF | Capacitor_SMD:C_0402_1005Metric | C31, C32 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric | C25, C26 |
| 2 | 2.2k | Resistor_SMD:R_0603_1608Metric | R2, R3 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D2, D3 |
| 2 | NCS213RSQT2G | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U8, U9 |
| 1 | 0 | Resistor_SMD:R_0402_1005Metric | SB1 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | NTC1 |
| 1 | 30V | Diode_SMD:D_SOD-323 | D1 |
| 1 | 33k | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 4.7uH | Inductor_SMD:L_Taiyo-Yuden_MD-3030 | L1 |
| 1 | 6.2k | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 8MHz | Crystal:Resonator_SMD_muRata_CSTxExxV-3Pin_3.0x1.1mm | Y1 |
| 1 | BC807 | Package_TO_SOT_SMD:SOT-23 | Q7 |
| 1 | Conn_01x02 | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J3 |
| 1 | Conn_01x06 | Connector_JST:JST_PH_S6B-PH-K_1x06_P2.00mm_Horizontal | J1 |
| 1 | Conn_01x06 | Connector_PinHeader_2.00mm:PinHeader_1x08_P2.00mm_Vertical | J2 |
| 1 | Encoder | Connector_PinSocket_2.00mm:PinSocket_1x04_P2.00mm_Vertical | J4 |
| 1 | MIC5504-3.3YM5 | Package_TO_SOT_SMD:SOT-23-5 | U7 |
| 1 | MP2359 | Package_TO_SOT_SMD:SOT-23-6 | U6 |
| 1 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1 |
| 1 | SMAJ24A | Diode_SMD:D_SMB | D7 |
| 1 | SN75176AD | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U11 |
| 1 | STM32L412CB | Package_QFP:LQFP-48_7x7mm_P0.5mm | U2 |
The 106 most common of 107 parts.
Questions
How big is the BLDC driver PCB?
It measures 40 × 24 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BLDC driver use?
107 parts, built around the STM32L412CBU6, SN75176AD, MIC5504-3.3YM5 and FDMS8018. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the BLDC driver KiCad files?
From the walmis/BLDC-Servo repository on GitHub, at the commit this page was made from: the board is BLDC-driver.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the BLDC driver design in my own project?
Its repository states no licence, so its author keeps all rights: ask walmis before reusing the design.
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