Bts7960 43a motor driver

🔹 BTS7960 High-Current Half-Bridge Motor Driver Module (43A Peak)

A robust DC motor driver module based on the Infineon BTS7960 IC, designed for high-current bidirectional control of a single DC motor, solenoid, or other inductive load. It combines two BTS7960 chips to form a complete H-bridge, offering high efficiency and integrated protection features.

✅ Specifications:

• Driver IC: BTS7960 (2x for full H-bridge)

• Motor Channels: 1 (Bidirectional)

• Operating Voltage: 6V – 27V DC

• Continuous Current: Up to 20A per channel (with proper heatsinking)

• Peak Current: 43A (short duration)

• Control Logic: PWM & Direction (Two signal inputs: RPWM, LPWM, or PWM + DIR depending on module variant)

• Control Voltage: 3.3V – 5V (TTL/CMOS compatible)

• PWM Frequency: Up to 25 kHz (recommended)

• Efficiency: High (using MOSFETs, low RDS(on))

• Protection Features:

  • Over-current protection

  • Over-temperature shutdown

  • Under-voltage lockout

  • Short-circuit protection

• Status Indicators: Power (LED), Fault indicators

• Module Size: ~ 55mm x 55mm (typical)

⚙️ Key Features:

• High Current Capability: Can drive large motors (e.g., 12V/24V scooter, wheelchair, or industrial motors) with ease.

• Integrated Protection: Built-in safeguards protect both the driver and your motor from common fault conditions.

• Efficient Operation: Low on-resistance MOSFETs minimize heat generation compared to older linear drivers (like L298N).

• Easy Interface: Simple PWM and direction control compatible with Arduino, Raspberry Pi (via level shifter), and other microcontrollers.

• Heatsink Included: Most modules come with a large, finned aluminum heatsink for sustained high-current operation.

📦 Typical Applications:

• High-Power Robotics: Driving large drive wheels or robotic arms.

• Electric Vehicles: Small scooters, go-karts, or custom EVs.

• Industrial Automation: Controlling conveyor belts, actuators, or heavy-duty solenoids.

• DIY CNC & 3D Printer Upgrades: As a high-power extruder or axis driver.

• High-Torque Hobby Projects: RC boats, rock crawlers, or winches.

🔧 Wiring & Control (Standard PWM + DIR Module):

1. Power Connections:

   • VM / Motor Power: Connect to your high-current battery (6V-27V).

   • VCC / Logic Power: Connect to 5V from your microcontroller (powers internal logic).

   • GND: Connect all grounds together (battery, module, microcontroller).

2. Motor Output: Connect your DC motor between the two output terminals (OUT1 & OUT2).

3. Control Inputs (to microcontroller):

   • RPWM: Connect to a PWM-capable pin for “Right” or “Forward” speed.

   • LPWM: Connect to a PWM-capable pin for “Left” or “Reverse” speed.

   • (For PWM+DIR modules: PWM pin for speed, DIR pin for direction).

4. Enable Pin (if present): Connect to a digital pin to enable/disable the driver (safety feature).

Basic Arduino Code Logic:

⚠️ Critical Usage & Safety Warnings:

• HEATSINK & COOLING IS MANDATORY: For any significant current (>5A), ensure the module’s heatsink is properly attached and consider active cooling (fan). Thermal shutdown will trigger if overheated.

• Power Supply Must Handle Current: Your battery or power supply must be rated for the peak current your motor may draw. Use thick gauge wires (e.g., 12AWG or thicker for >20A).

• Flyback Diodes: Protection diodes are integrated, but for highly inductive loads, adding external Schottky diodes is still good practice.

• Logic Level Compatibility: Ensure your microcontroller’s logic HIGH (3.3V or 5V) meets the module’s input threshold. Some 3.3V boards may need a level shifter.

• Start Slow: Always begin testing at low PWM values and low voltage to prevent sudden high-current surges.

• Isolate Logic & Motor Power: Use separate power supplies or filters to prevent motor noise from resetting your microcontroller.