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BLSD4815B Brushless dc motor driver
| Name | BLDC Driver |
| Certification | CE |
| Warranty | 3months-1year |
Brief introduction
BLSD4815B is mainly for BLDC motors of 48V less 440w or 24v less 300w.
Electrical parameters
Driver parameter | Min Value | Typical Value | Max Value | Unit |
Voltage input DC | 12 | 48 | 56 | V |
Current output | - | - | 15 | A |
Motor speed range | 0 | - | 20000 | RPM |
Hall signal voltage | - | - | 5 | V |
Hall drive current | 12 | - | - | mA |
External potentiometer | - | 10 | - | KΩ |
Environmental indicators
Environmental factors | Environmental indicators |
Heat sinking method | Natural or forced cooling |
Atmosphere | Avoid dust, oil mist and corrosive air |
Operating temperature | 10℃-+50℃ |
Ambient humidity | 90% or less(non condensing) |
Vibration Resistance | 5.7m/S² max |
Storage temperature | 0℃-+50℃ |
Dimensions(Unit:mm)

Driver interface and writing diagram
Driver interface

Port signal description
Signal category | Terminal | Function Description |
Power connection | DC+/DC- | Dc voltage input terminal (12-56VDC) |
Motor connection | U | Motor line U phase |
V | Motor line V phase | |
W | Motor line W phase | |
Hall signal | REF- | Hall sensor signal- |
Hu | Hall sensor signal Hu | |
Hv | Hall sensor signal Hv | |
Hw | Hall sensor signal Hw | |
REF+ | Hall sensor signal+ | |
Control signal | SV | External potentiometer speed setting input; External analog voltage input terminal ;PWM speed setting input |
COM | Common port(0V) | |
F/R | Motor direction control terminal;F/R and COM disconnection,motor will rotates Clockwise,and otherwise,motor will rotate anticlockwise. | |
EN | Stop signal terminal; EN connects COM ,motor runs,otherwise motor stops. | |
BRK | Motor brake stop control signal;BRK and COM connect in default,motor brake stops when BRK and COM disconnect. | |
Output signal | SPEED | Speed signal output terminal |
ALARM | Motor or driver fault signal output. It is 5V in normal situation and 0V when fault occurs. |
Output signal connection diagram


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