BTS7960 43A Motor Driver Features
The BTS7960 is a high-current full-bridge motor driver module. The Key features are:
Input voltage: 6V to 27V
Maximum allowable current: 43 A
PWM capability: up to 25 kHz
Two PWM output pins for speed control in direct and reverse directions
Two EN output pins to control motors
Two IS input pins to protect against high current and heat
These modules control DC motors using PWM (Pulse Width Modulation) technique. These modules convert a constant input voltage to a variable voltage for motor. The speed can be controlled by changing the DC motor voltage. PWMs usually have a fixed frequency and can be controlled by controlling the time that the pulse is HIGH (Duty Cycle).
 
BTS7960 43A Motor Driver Pinout
This module has 12 pins:
Microcontroller pins (Low current):
VCC: Module power supply – 5V
GND: Ground
IS-R: Input signal for detecting high current – Straight rotation
IS-L: Input signal for detecting high current – Inverse rotation
EN-R: Output Signal for controlling motor direction – Straight rotation
EN-L: Output Signal for controlling motor direction – Inverse rotation
WM-R: PWM Signal for controlling motor speed – Straight rotation
PWM-L: PWM Signal for controlling motor speed – Inverse rotation
Motor pins (High current):
M+: Motor Positive
M-: Motor negative
B+: Battery positive
B+: Battery negative
 
Project examples
1. Interfacing BTS7960 43A High Power Motor Driver Module with Arduino
2. Motor Driver BTS7960 43A