Product Brushless motor driver


1. Closed-loop speed control by Hall signal. Maximum torque can be achieved at low speeds.
2. Wide speed adjustment range: support 200~20000 rpm speed range.(Two-pole motor)
  • BLD4830TC
  • BLD4830TC
  • BLD4830TC
  • BLD4830TC


● Closed-loop speed control by Hall signal. Maximum torque can be achieved at low speeds.

● Wide speed adjustment range: support 200~48000 rpm speed range.(Two-pole motor)

● Provide soft start and stop function, softer start and stop, higher security.

● ide voltage input range, adapt to 10~55V DC power supply.

● High current driving ability, continuous rated current up to 30A, the peak current up to 60A.

● Support external Potentiometer, external voltage and external PWM speed control.

● Provide over-voltage, under-voltage, over-current, over-temperature, hall sensor error protection and alarm function.

● Support CAN2.0 or RS485 Modbus protocol.

Typical application: 

BLD4830TC is suitable for driving any three-phase Brushless DC hall motor with continuous operating current below 30A and rated voltage range between 10V and 55V and has advantages of maintenance-free, long lifetime, etc. BLD4830TC is widely used in textile equipment, medical equipment, food machinery and equipment, power tool, garden machine, smart-home device and other electrical automation control fields.

Product overview:

BLD4830TC is applied to the speed control of brushless DC hall motor. In addition, this product has advantages of diversified speed adjustment mode, wide speed adjustment range, complete functions, hardware and software full protection, etc.

Diversified speed adjustment mode: 

Provide voltage speed control, external PWM speed control, CAN or RS485 speed control, etc. Wide speed adjustment range: support speed adjustment within the range of 200~48000 rpm(Two-pole motor); Complete functions: with functions of enable, positive and negative turning, braking, motor speed signal output, alarm output, etc. Hardware and software full protection: with functions of over-voltage protection, under voltage protection, over-current protection, over-temperature protection, the hall signal fault alarm, etc.

Function and parameter:

Supply voltageRated operating voltage: 48VDC (operating voltage range: 10VDC ~   55VDC)
Operating currentContinuous current: 30A,    Peak current: 60A (Ambient temperature below 25℃)
Power range≤1650   W 
Speed range200rpm~48000rpm   (Two-pole motor)
Adapted motorBrushless DC hall motor(120°)
Working modeHall speed closed-loop mode(Factory Default), Open-loop   mode(Optional)
Speed adjustment modeSupport external potentiometer speed control, and PWM speed   control.
Protective functionOver-voltage protection, Under-voltage protection, Over-current   protection, Over-temperature protection, Soft-Start and hall signal fault   alarm function.
Working environmentNo corrosive, flammable, explosive, conductive gas, liquid and   dust.
Heat dissipation modeNatural cooling or external radiator.


InterfacePin nameDefinitionFunction description
Power interface10~55V DC inputConnect to the positive pole of the power   supply
-Power   GroundConnect to the negative pole of the power supply
Motor interfacePHUMotor   phase – UConnect the motor power line – phase U
PHVMotor   phase – VConnect the motor power line – phase V
PHWMotor   phase – WConnect the motor power line – phase W
H+5V   power outputConnect the positive pole of hall power line
H-5V   GroundConnect the negative pole of hall power line
HuHall signal phase - UConnect the motor hall phase - U line
HvHall   signal phase - VConnect the motor hall phase - V line
HwHall   signal phase - WConnect the motor hall phase - W line
Control signal  interfaceFRPositive and Negative turning control(F/R remains unconnected, CW turning)
(F/R is short-connected   with +5V, CCW turning)
ENEnable   Control(EN remains unconnected, driver   cannot control the motor)
(EN is short-connected with   +5V, driver can control the motor )
BRBrake   ControlElectronic brake locking function
(BRK   remains unconnected, motor on)
(BRK is short-connected   with +5V, motor off)
GNDExternal   speed controlling Ground
VR0~5 V analog   voltage signal Speed   control port
+5V5   V Power output
PG Motor   speed pulse outputMotor speed signal output needs 
external pull-up resistor.
PWM/ALMPWM input or Alarm output(Alternative)Alarm output needs 
external pull-up resistor.
Dial Switch (Optional)S1~S3Current   protection point selection
S4~S6Maximum   speed option
S7Open and closed loop settings 
(OFF: closed loop, ON: open   loop)
S8Speed adjustment mode setting
(OFF: VR analog, ON: PWM)
Communication interface   (optional)CAN CAN (A:CANL;B:CANH)The CAN or RS485 communication interface depends on the driver   communication interface
or RS485RS485 (A:RS485B;B:RS485A)

OthersLED-RRed indicatorRed off, green flashes: unable to reach a given speed
Green off, red flashes once:   over-voltage protection
Green off, red flashes twice:   under-voltage protection
Green off, red flashes three   times: over-current protection
Green off, red flashes four   times: over-temperature protection
Green off, red on: Hall signal   error

Motor size



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