Double BTS7960 43A H-Bridge High-Power Stepper Motor Driver Module

Specification	Details
Input Voltage	6V to 27V DC
Peak Current	43 Amperes
Control Signal Level	3.3V to 5V DC
Control Mode	PWM / Level Control
Duty Cycle	0% to 100%
Integrated Protection	Over-voltage, Under-voltage, Over-temperature, Short-circuit

Price

₹ 296.61

(Tax included)

Barcode: 084519

Product Description

The BTS7960 43A High-Power Motor Driver is an industrial-grade H-Bridge module designed for driving high-current DC motors with extreme precision and safety. Unlike standard hobbyist drivers, this module utilizes two BTS7960 chips in a "Half-Bridge" configuration to form a complete H-Bridge capable of handling up to 43A of peak current. It is the premier choice for heavy-duty robotics, electric vehicles, and high-torque automation projects. The board features a massive integrated aluminum heatsink to dissipate heat during high-load operations and includes a 74AHC244 isolation chip to shield your sensitive microcontroller (like an Arduino or Raspberry Pi) from the high-voltage noise of the motor circuit.

Key Features

Extreme Current Capacity: Capable of driving motors that require up to 43A peak, making it suitable for large RS-775 or wheelchair motors.
Microcontroller Isolation: Features an onboard buffer IC to isolate the logic side from the power side, preventing "back-feed" damage to your controller.
Active Status Feedback: Provides a diagnostic "Is" pin that outputs a current-proportional signal, allowing for real-time load monitoring and stall detection.
High-Speed PWM: Supports high-frequency PWM signals for smooth, silent speed control and immediate directional braking.
Robust Thermal Design: The chips are directly bonded to a large-area finned heatsink, ensuring stable performance even at continuous high-amperage draws.

Technical Details

Logic Pins: RPWM (Forward), LPWM (Reverse), R_EN (Forward Enable), L_EN (Reverse Enable).
Diagnostic Pins: R_IS and L_IS (Over-current and thermal alarm outputs).
Mounting: Four 3mm mounting holes for secure chassis attachment.

Prototyping and Engineering Tips from Robogears

The "Shared Ground" Requirement: Ensure the Ground (GND) of your microcontroller is connected to the "GND" pin on the logic side of the BTS7960. Without this shared reference, the PWM signals will not be recognized, and the motor will not spin.
Braking Logic: To achieve "Active Braking," set both R_EN and L_EN to HIGH and provide a 0% duty cycle (or LOW signal) to both RPWM and LPWM. This shorts the motor terminals through the MOSFETs, creating a strong electromagnetic brake.
Wiring Gauge: At 43A, standard jumper wires will melt. Use at least 10AWG or 12AWG high-strand silicone wires for the battery and motor connections. Ensure your screw terminals are tightened firmly to prevent "arcing" under heavy load.
Current Monitoring: Utilize the R_IS and L_IS pins by connecting them to an Analog pin on your Arduino. By monitoring the voltage on these pins, your code can automatically shut down the motor if it detects a physical jam (stall), protecting both the motor and the gearbox.
Reverse Polarity Warning: CRITICAL: This module does not have high-current reverse polarity protection on the B+ and B- terminals. Connecting your battery backward will instantly destroy both BTS7960 ICs. Always double-check your power input before switching on the system.

Package Includes

1 x BTS7960 43A High-Power Dual H-Bridge Motor Driver Module

Disclaimer: This module handles very high currents that can cause fire or severe burns if shorted. Always install a 40A or 50A fuse in series with the battery. Ensure the heatsink has adequate airflow if running at a continuous load above 15A. Not recommended for children without adult supervision.

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