Last Updated: 05/08/2025
IBT2 BS7960 43A Motor Driver
Components >> IBT2 BS7960 43A Motor Driver
IBT2 BST7960 43A Motor Driver
The IBT2 BS7960 is a heavy duty motor driver capable of handling up to 27v and 43Amps giving your project the ability to drive high powered motors.
In this tutorial I will show how to control the direction and speed of the motor as well as measure the current draw creating an over amp shut down system.
IBT2 BST7960 43A Motor Driver Specifications
| Voltage | 5.5 - 27v (board as an under Voltage shut down and over voltage lock out). |
| Amps | Maximum 43A (For constant high power usage a fan may be required for the heat sink to aid cooling). |
| Logic pins | 3.3-5v |
| Current sense | The board monitors the current draw passing it as a voltage on the R_IS and L_IS (pins 5-6) |
| Built in Protection | Over temperature cut out Over Voltage lock out Under voltage shut down Over current Short circuit |
| Dimensions | Approx (W)50mm x (L)50mm x (H)42mm( including heat sink). |
IBT 2 BS7960 Pin Out
| Pin 1 RPWM | Forward Level, HIGH for maximum speed or PWM for Speed control (HIGH Active) |
| Pin 2 LPWM | Reverse Level, HIGH for maximum speed or PWM for Speed control (HIGH Active) |
| Pin 3 R_EN | Enable Forward Direction (HIGH Active) |
| Pin 4 L_EN | Enable ReverseDirection (HIGH Active) |
| Pin 5 R_IS | Current Sense (Forward) 1.176v/Amp ( 0.588v/Amp if R_IS and L_IS connected together) WARNING Be careful of over volts on processor pins, see video |
| Pin 6 L_IS | Current Sense (Reverse) 1.176v/Amp ( 0.588v/Amp if R_IS and L_IS connected together) WARNING Be careful of over volts on processor pins, see video. |
| Pin 7 VCC | (3.3 - 5v) Power supply for logoc chip, Suitable for Arduino or ESP32 |
| Pin 8 Gnd | Connect to Arduino Gnd |
| B- & B+ | Motor Power Supply (5.5v - 27v) |
| M+ & M- | Outputs to Motor |
IBT2 BS7960 43A Motor Driver (Click images for larger version)
Circuit diagram
This is the circuit digram for the tutorial code.
Code:
Click to download code examples
Additional Resource Links
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