● Acceleration/deceleration time setting
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LMBLD750
LeanMotor
10 Pcs
The LMBLD750 BLDC motor drive is a high performance, cost-effective 3phase BLDC motor drive, which can provide power output Max 750VA.The design is based on advanced DSP technology and feature high torque, low noise, low vibration, PID speed loop, PID current loop, over current protection, over load protection and a combined use of manual speed adjustment and automatic speed adjustment.
Acc/Dec time setting
Alarm signal
Internal potentiometer RV speed control
External potentiometer speed setting
External analog signal speed setting
Pulse frequency speed control
Motor pole number selection
Open/closed loop control
Maximum current output setting
Motor stall torque maintenance
Restart
The LMBLD750 BLDC motor drive is a high performance, cost-effective 3phase BLDC motor drive, which can provide power output Max 750VA.The design is based on advanced DSP technology and feature high torque, low noise, low vibration, PID speed loop, PID current loop, over current protection, over load protection and a combined use of manual speed adjustment and automatic speed adjustment.
Acc/Dec time setting
Alarm signal
Internal potentiometer RV speed control
External potentiometer speed setting
External analog signal speed setting
Pulse frequency speed control
Motor pole number selection
Open/closed loop control
Maximum current output setting
Motor stall torque maintenance
Restart
| Brand | Leanmotor |
| Model | LMBLD750 |
| Driver Type | DC Brushless Motor Driver |
| DC / AC | DC |
| Suitable Motor | 3-Phase DC Brushless motor |
| Input Voltage | 18VDC - 52VDC |
| Output Current | Max 25A |
| Hall signal voltage | 5V |
| Hall drive current | 20mA |
| Motor speed range | 0rpm - 20000rpm |
| External potentiometer | 10kΩ |
| Control method | Open and closed loop control |
| JKBLD750 DC brushless driver is suitable for speed regulation of three-phase DC brushless motors with power below 750W and voltage 48V, and it can provide external potentiometer speed regulation, external analog voltage speed regulation, and upper computer (PLC, microcontroller, etc.) PWM speed regulation. At the same time the driver has a large torque start, fast start and braking, forward and reverse switching, manual and automatic speed control. It is suitable for DC brushless motors with voltage from 18V to 52V and power less than 750W. | |
| Parameter | Min | Typical | Max | Unit |
| Voltage Input DC | 18 | 48 | 52 | V |
| Output current | - | - | 25 | A |
| Motor speed range | 0 | - | 20000 | RPM |
| Hall signal voltage | - | - | 5 | V |
| Hall drive current | - | 20 | - | MA |
| External potentiometer | - | 10 | - | KΩ |
| Heat Sinking Method | Natural cooling or forced cooling |
| Atmosphere | Avoid dust, oil stains, and corrosive gases |
| Operating Temperature | +10℃ ~ +50℃ |
| Ambient Humidity | 80% RH (non-condensing) |
| Vibration Resistance | 5.7m/s² maximum |
| Storage Temperature | 0℃ ~ +60℃ |
| Signal category | Terminal | Functional Description |
| Control signal | PUL+ | Pulse frequency input positive pole |
| PUL- | Pulse frequency input negative electrode. | |
| BRK | When the BRK terminal and COM terminal are disconnected or high-level input, the motor brake stops, and when short circuited or low-level input, the motor runs. | |
| EN | When the EN terminal and COM terminal are disconnected or high-level input, the motor slowly stops, and when short circuited or low-level input, the motor runs. | |
| F/R | When the F/R terminal and COM terminal are disconnected or high-level input, the motor rotates forward, and when short circuited or low-level input, the motor reverses. | |
| COM | Common port (OV reference level). | |
| SV | ① External potentiometer speed setting input; ② External analog voltage input terminal ③ PWM speed setting input | |
| VCC | External potentiometer interface | |
| Hall signal | REF+ | Hall Sensor Signal Power Supply + |
| HU | Hall Sensor signal HU. | |
| HV | Hall Sensor signal HV. | |
| HW | Hall Sensor signal HW. | |
| REF- | Hall Sensor Signal Power Supply - | |
| Motor connection | W | Motor line W phase |
| V | Motor line V phase | |
| U | Motor line U phase | |
Power connection | DC+ | Power supply positive electrode (25-52VDC) |
| DC- | Power supply negative electrode | |
Output signal | SPEED | Output a pulse frequency that matches the operating speed of the motor. The motor speed can be calculated using SPEED-OUT. The calculation formula is: N (rpm)=(F/P) × 60/3 F: Output pulse frequency (Hz); P: Number of motor poles; N: Motor speed |
| ALM | The output signal of the motor or drive control fault signal is normally 5V, and in the event of a fault, it is 0V. |
| Brand | Leanmotor |
| Model | LMBLD750 |
| Driver Type | DC Brushless Motor Driver |
| DC / AC | DC |
| Suitable Motor | 3-Phase DC Brushless motor |
| Input Voltage | 18VDC - 52VDC |
| Output Current | Max 25A |
| Hall signal voltage | 5V |
| Hall drive current | 20mA |
| Motor speed range | 0rpm - 20000rpm |
| External potentiometer | 10kΩ |
| Control method | Open and closed loop control |
| JKBLD750 DC brushless driver is suitable for speed regulation of three-phase DC brushless motors with power below 750W and voltage 48V, and it can provide external potentiometer speed regulation, external analog voltage speed regulation, and upper computer (PLC, microcontroller, etc.) PWM speed regulation. At the same time the driver has a large torque start, fast start and braking, forward and reverse switching, manual and automatic speed control. It is suitable for DC brushless motors with voltage from 18V to 52V and power less than 750W. | |
| Parameter | Min | Typical | Max | Unit |
| Voltage Input DC | 18 | 48 | 52 | V |
| Output current | - | - | 25 | A |
| Motor speed range | 0 | - | 20000 | RPM |
| Hall signal voltage | - | - | 5 | V |
| Hall drive current | - | 20 | - | MA |
| External potentiometer | - | 10 | - | KΩ |
| Heat Sinking Method | Natural cooling or forced cooling |
| Atmosphere | Avoid dust, oil stains, and corrosive gases |
| Operating Temperature | +10℃ ~ +50℃ |
| Ambient Humidity | 80% RH (non-condensing) |
| Vibration Resistance | 5.7m/s² maximum |
| Storage Temperature | 0℃ ~ +60℃ |
| Signal category | Terminal | Functional Description |
| Control signal | PUL+ | Pulse frequency input positive pole |
| PUL- | Pulse frequency input negative electrode. | |
| BRK | When the BRK terminal and COM terminal are disconnected or high-level input, the motor brake stops, and when short circuited or low-level input, the motor runs. | |
| EN | When the EN terminal and COM terminal are disconnected or high-level input, the motor slowly stops, and when short circuited or low-level input, the motor runs. | |
| F/R | When the F/R terminal and COM terminal are disconnected or high-level input, the motor rotates forward, and when short circuited or low-level input, the motor reverses. | |
| COM | Common port (OV reference level). | |
| SV | ① External potentiometer speed setting input; ② External analog voltage input terminal ③ PWM speed setting input | |
| VCC | External potentiometer interface | |
| Hall signal | REF+ | Hall Sensor Signal Power Supply + |
| HU | Hall Sensor signal HU. | |
| HV | Hall Sensor signal HV. | |
| HW | Hall Sensor signal HW. | |
| REF- | Hall Sensor Signal Power Supply - | |
| Motor connection | W | Motor line W phase |
| V | Motor line V phase | |
| U | Motor line U phase | |
Power connection | DC+ | Power supply positive electrode (25-52VDC) |
| DC- | Power supply negative electrode | |
Output signal | SPEED | Output a pulse frequency that matches the operating speed of the motor. The motor speed can be calculated using SPEED-OUT. The calculation formula is: N (rpm)=(F/P) × 60/3 F: Output pulse frequency (Hz); P: Number of motor poles; N: Motor speed |
| ALM | The output signal of the motor or drive control fault signal is normally 5V, and in the event of a fault, it is 0V. |


1. What is the LMBLD750 brushless DC motor driver used for?
The LMBLD750 is designed for driving low- to medium-power brushless DC motors in applications such as automation equipment, robotics, medical devices, pumps, fans, and precision motion systems.
2. What input voltage range does the LMBLD750 support?
The LMBLD750 supports a wide DC input voltage range, allowing it to work with different power supplies commonly used in industrial and commercial BLDC applications.
3. What is the maximum output current of the LMBLD750 driver?
It is suitable for BLDC motors with moderate current requirements, making it ideal for compact and energy-efficient motion control systems.
4. Does the LMBLD750 support Hall sensor feedback?
Yes, the driver is compatible with Hall sensor feedback, ensuring reliable commutation, stable startup, and smooth low-speed operation.
5. What control methods are available on the LMBLD750?
The driver supports standard speed and direction control using analog or digital input signals for easy integration with PLCs and controllers.
6. Can the LMBLD750 achieve smooth low-speed performance?
Yes, optimized control algorithms provide stable torque output and smooth motor rotation at low speeds.
7. What protection functions are included in the LMBLD750?
Built-in protections include over-current, over-voltage, under-voltage, over-temperature, and short-circuit protection.
8. Is the LMBLD750 suitable for continuous operation?
Yes, the driver is designed for continuous-duty operation with stable thermal performance in industrial environments.
9. How compact is the LMBLD750 BLDC driver?
Its compact and lightweight design allows easy installation in space-constrained equipment and control enclosures.
10. What types of BLDC motors are compatible with the LMBLD750?
The LMBLD750 works with three-phase brushless DC motors commonly used in automation, medical, and commercial equipment.
11. Can Lean Motor customize the LMBLD750 for specific voltage or current needs?
Yes, voltage range and current capacity can be customized to match specific motor and application requirements.
12. Is firmware or parameter customization available for OEM projects?
Lean Motor provides firmware tuning and parameter optimization to meet OEM and ODM control requirements.
13. Can the LMBLD750 be matched to a specific BLDC motor model?
Yes, the factory can tailor the driver to motor parameters such as rated voltage, current, pole pairs, and Hall sequence.
14. Does Lean Motor support private labeling or OEM branding?
Custom labeling, logo printing, and packaging services are available for distributors and brand owners.
15. Can wiring harnesses and connectors be customized?
Yes, connector types, pin definitions, and cable lengths can be customized to simplify customer installation.
16. Is thermal management customization available for higher loads?
The factory can optimize heat dissipation design for applications requiring improved thermal performance.
17. Can protection thresholds be adjusted for special applications?
Protection parameters such as over-current and over-temperature limits can be fine-tuned for specific operating conditions.
18. Does Lean Motor support low-MOQ or prototype customization?
Yes, Lean Motor supports small-batch production and prototype development for testing and validation.
19. Can the LMBLD750 be supplied as an integrated motor-driver solution?
The driver can be integrated with a BLDC motor to create a compact, plug-and-play motor-drive solution.
20. What technical support is provided for customized LMBLD750 drivers?
Lean Motor offers full technical support, including documentation, engineering assistance, and after-sales service.
1. What is the LMBLD750 brushless DC motor driver used for?
The LMBLD750 is designed for driving low- to medium-power brushless DC motors in applications such as automation equipment, robotics, medical devices, pumps, fans, and precision motion systems.
2. What input voltage range does the LMBLD750 support?
The LMBLD750 supports a wide DC input voltage range, allowing it to work with different power supplies commonly used in industrial and commercial BLDC applications.
3. What is the maximum output current of the LMBLD750 driver?
It is suitable for BLDC motors with moderate current requirements, making it ideal for compact and energy-efficient motion control systems.
4. Does the LMBLD750 support Hall sensor feedback?
Yes, the driver is compatible with Hall sensor feedback, ensuring reliable commutation, stable startup, and smooth low-speed operation.
5. What control methods are available on the LMBLD750?
The driver supports standard speed and direction control using analog or digital input signals for easy integration with PLCs and controllers.
6. Can the LMBLD750 achieve smooth low-speed performance?
Yes, optimized control algorithms provide stable torque output and smooth motor rotation at low speeds.
7. What protection functions are included in the LMBLD750?
Built-in protections include over-current, over-voltage, under-voltage, over-temperature, and short-circuit protection.
8. Is the LMBLD750 suitable for continuous operation?
Yes, the driver is designed for continuous-duty operation with stable thermal performance in industrial environments.
9. How compact is the LMBLD750 BLDC driver?
Its compact and lightweight design allows easy installation in space-constrained equipment and control enclosures.
10. What types of BLDC motors are compatible with the LMBLD750?
The LMBLD750 works with three-phase brushless DC motors commonly used in automation, medical, and commercial equipment.
11. Can Lean Motor customize the LMBLD750 for specific voltage or current needs?
Yes, voltage range and current capacity can be customized to match specific motor and application requirements.
12. Is firmware or parameter customization available for OEM projects?
Lean Motor provides firmware tuning and parameter optimization to meet OEM and ODM control requirements.
13. Can the LMBLD750 be matched to a specific BLDC motor model?
Yes, the factory can tailor the driver to motor parameters such as rated voltage, current, pole pairs, and Hall sequence.
14. Does Lean Motor support private labeling or OEM branding?
Custom labeling, logo printing, and packaging services are available for distributors and brand owners.
15. Can wiring harnesses and connectors be customized?
Yes, connector types, pin definitions, and cable lengths can be customized to simplify customer installation.
16. Is thermal management customization available for higher loads?
The factory can optimize heat dissipation design for applications requiring improved thermal performance.
17. Can protection thresholds be adjusted for special applications?
Protection parameters such as over-current and over-temperature limits can be fine-tuned for specific operating conditions.
18. Does Lean Motor support low-MOQ or prototype customization?
Yes, Lean Motor supports small-batch production and prototype development for testing and validation.
19. Can the LMBLD750 be supplied as an integrated motor-driver solution?
The driver can be integrated with a BLDC motor to create a compact, plug-and-play motor-drive solution.
20. What technical support is provided for customized LMBLD750 drivers?
Lean Motor offers full technical support, including documentation, engineering assistance, and after-sales service.