Brief Introduction
- Competitive and economical price with adjustable parameters.
- Surface mounted technology to improve the reliability of the circuit.
- We present industrial chips to meet industrial application temperature requirements.
- Optoelectronic isolation for analog voltage / PWM pulse / pulse frequency signal and other security interfaces.
- Super reliable design with safe forward and reverse, safe start, anti-interference, over temperature / over current/short circuit / under voltage / over voltage and other protections.
Definition of Part number:
| BLSD | 24 | 10 | DC | 2Q | N | T | F | A | P |
|---|---|---|---|---|---|---|---|---|---|
| BLDC drive | Rated Voltage | Peak current limit | DC input ① | Control mode | Parameter ② | Temp ③ | PG type ④ | Sensor type ⑤ | Speed regulation type ⑥ |
- ① DC input: This code shows the DC Power input type of the drive: DC = Normal DC input; LDC = Ultra low voltage DC input; WDC = Wide range DC input; AC = AC input; ADC = AC and DC dual purpose.
- ② Parameter: This code shows the parameter type of the drive: N = Variable parameter; S = Simple fixed parameter; H = High current; SH = Small type high voltage; HV = High voltage.
- ③ Temp: This code shows the temperature range of the drive: T = -40 ~ +65 ℃ , None = -10 ~ +45℃ .
- ④ PG type: This code shows the PG type: F = PG 1x hall sensor signal/phase, None= 6 x hall sensor signal/phase.
- ⑤ Sensor type: This code shows the hall sensor degree of the drive: A = 60° Hall sensor, None = 120° Hall sensor.
- ⑥ Speed regulation type: This code shows the speed regulation type: P = 0-3KHz speed regulation, None = voltage command.
Note: In order to let the part number easier to read, Some part number code will not be shown in the specification table, a code “X” will be instead. The full part number will be provided in the quotation or the proforma invoice…
Specifications
| Model | Temp range (ºC) | Voltage range (VDC) | I-pk (A) | I-con (A) | 60º/120º Hall sensor | PWM f(kHz) | PI Close loop of speed | SV Ramp time (S) | SV Range (V) | LV /OV | Alm | PG | Heat Sink | Parameter Settings By Switch And Pot |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BLSD1210DC-2Q-N-X | -10~+45 -40~+65 | 9~16 | 2.5~10 | 1.25~5 | √ | 15 | √ | 0.1/0.25 /0.5/1.0 | 0~5 | √ | √ | 24p@ 8-pole | X | √ |
| BLSD1220DC-2Q-N-X | -10~+45 -40~+65 | 9~16 | 5~20 | 2.5~10 | √ | 15 | √ | 0.1/0.25 /0.5/1.0 | 0~5 | √ | √ | 24p@ 8-pole | X | √ |
| BLSD1230DC-2Q-N-X | -10~+45 -40~+65 | 9~16 | 7.5~30 | 3.75~15 | √ | 15 | √ | 0.1/0.25 /0.5/1.0 | 0~5 | √ | √ | 24p@ 8-pole | X | √ |
| BLSD2410DC-2Q-N-X | -10~+45 -40~+65 | 17~32 | 2.5~10 | 1.25~5 | √ | 15 | √ | 0.1/0.25 /0.5/1.0 | 0~5 | √ | √ | 24p@ 8-pole | X | √ |
| BLSD2420DC-2Q-N-X | -10~+45 -40~+65 | 17~32 | 5~20 | 2.5~10 | √ | 15 | √ | 0.1/0.25 /0.5/1.0 | 0~5 | √ | √ | 24p@ 8-pole | X | √ |
| BLSD2430DC-2Q-N-X | -10~+45 -40~+65 | 17~32 | 7.5~30 | 3.75~15 | √ | 15 | √ | 0.1/0.25 /0.5/1.0 | 0~5 | √ | √ | 24p@ 8-pole | X | √ |
| BLSD3610DC-2Q-N-X | -10~+45 -40~+65 | 27~45 | 2.5~10 | 1.25~5 | √ | 15 | √ | 0.1/0.25 /0.5/1.0 | 0~5 | √ | √ | 24p@ 8-pole | X | √ |
| BLSD3620DC-2Q-N-X | -10~+45 -40~+65 | 27~45 | 5~20 | 2.5~10 | √ | 15 | √ | 0.1/0.25 /0.5/1.0 | 0~5 | √ | √ | 24p@ 8-pole | X | √ |
| BLSD3630DC-2Q-N-X | -10~+45 -40~+65 | 27~45 | 7.5~30 | 3.75~15 | √ | 15 | √ | 0.1/0.25 /0.5/1.0 | 0~5 | √ | √ | 24p@ 8-pole | X | √ |
| BLSD4810DC-2Q-N-X | -10~+45 -40~+65 | 37~55 | 2.5~10 | 1.25~5 | √ | 15 | √ | 0.1/0.25 /0.5/1.0 | 0~5 | √ | √ | 24p@ 8-pole | X | √ |
| BLSD4820DC-2Q-N-X | -10~+45 -40~+65 | 37~55 | 5~20 | 2.5~10 | √ | 15 | √ | 0.1/0.25 /0.5/1.0 | 0~5 | √ | √ | 24p@ 8-pole | X | √ |
| BLSD4830DC-2Q-N-X | -10~+45 -40~+65 | 37~55 | 7.5~30 | 3.75~15 | √ | 15 | √ | 0.1/0.25 /0.5/1.0 | 0~5 | √ | √ | 24p@ 8-pole | X | √ |
Control Interface and Features
- 1. Control signals:
- F/R—–H or Open=Forward, L or Close=Reverse
- EN——H or Open=Disable, L or Close=Enable
- BK——H or Open=Running, L or Close=Brake
- SV——0~5V speed reference(112K input resistance)
- PG—–Speed pulse output(OC)
- ALM—Alarm output(OC)
- 2. Signal wire:
- Control Signal cable and hall sensors cable can not be tied together with windings cable, otherwise, it will take interference. The long wire should be shielded wire.
- 3. Alarm conditions:
- a. Hall sensor signals are not correct.
- b. LV or OV for 1~3S.
- c. Over temperature of case (80℃).
- d. Over load for 5~6s continuously.
- e. It can be reset by Turn-Off-On DC Power or Disable the driver once.
- 4. LED indicator:
- P/A——-Bright=Driver is OK, Blink=Driver is in alarm
- SHAFT—-Bright=Motor shaft is moving, Dark=Motor shaft is in static
- 5. Braking operation:
- The motor speed must be less than the safe brake speed Ns when you brake the motor.
- For Y windings, Ns=√3 x Ip x RL x N/ (2 x Vp)
- For △windings, Ns=IP x RL x N/ (2 x √3 x Vp)
- Ip=Peak current(A), RL=Line to line resistance of windings(Ohm), N=No-load speed(rpm), Vp=Rated voltage(V), Ns=Safe brake speed(rpm)
- 6. Driver setup by pot and switch:
- R-SV pot=SV voltage ratio, R-PC=Peak current ratio, SW1=Open/Close loop, SW2=Loop filter time, SW3=Loop gain, SW4,5,6=Speed range setting, SW7,8=SV ramp time setting
- 7. Peak current selection:
- Ip>=2xIr or Ip>=4xPo/Vp, Ip is peak current of driver(A), Ir is rated current of motor(A), Po is rated output power of motor(W), Vp is rated voltage of driver(V)
In-Depth Applications for this Variable Parameter BLDC Motor Driver
The BLSD-N Series is designed for OEMs and system integrators who require the flexibility to fine-tune motor performance in the field. Its “N” designation signifies a variable parameter setup, adjustable via onboard potentiometers and switches without needing software. Key application areas include:
- Automation & Machinery: Ideal for packaging, textile, and conveying systems where motor parameters must be adjusted on-site to match different loads or production speeds.
- Robotics & AGVs: Allows for precise tuning of acceleration (SV ramp time) and speed control (PI loop) to optimize the performance of AGV drive wheels or robotic joints.
- Pumps & Ventilation: Operates fans and pumps efficiently, allowing speed ranges to be set via DIP switch to match the exact requirements of a fluid or air system.
Outline


Customization
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| Heat sink | Motor tuning | Logo / brandmark |
| Item | Description |
|---|---|
| Heat Sink | Optional heat sinks can be installed upon request to enhance thermal performance. |
| Motor Tuning | We provide driver tuning services to optimize performance with motors of different pole counts, ensuring a perfect match for your application. |
| Logo & Brandmark | We offer OEM/ODM services, including printing your company logo or brandmark directly onto the driver’s frame. |
Frequently Asked Questions (FAQ)
Q: What does “Variable Parameter” (N-Series) mean?
A: “Variable Parameter” means this BLDC motor driver allows you to adjust key settings directly on the board. Unlike the fixed “S-Series”, the “N-Series” lets you use potentiometers (pots) and DIP switches to set peak current (R-PC), loop filter time (SW2), loop gain (SW3), and speed ramp time (SW7,8) without needing a computer.
Q: What does the 2-Quadrant (2Q) control mode mean?
A: 2-Quadrant (or 2Q) control means this driver can operate the motor in two directions: Forward Motoring (Q1) and Reverse Motoring (Q3). It controls speed and provides torque in both clockwise and counter-clockwise rotation, which is ideal for most automation tasks.
Q: What does “PI Closed-Loop” control mean for this driver?
A: This brushless dc motor driver uses a PI (Proportional-Integral) algorithm for its speed control. It reads the Hall sensor feedback (PG output) and compares it to the set speed (SV), then automatically adjusts the power to maintain that speed, even if the load changes.
Q: How do I control the speed of this BLDC motor controller?
A: This BLSD-N variable parameter BLDC motor driver supports multiple speed control methods via the SV (Speed Voltage) input. You can use a 0-5V analog voltage signal, a PWM pulse signal, or connect an external potentiometer to the SV pin to adjust the speed.




