BTS7960 43A H-Bridge High-Power Motor Driver

Specifications

Electrical Specifications

1. Operating Voltage:
   • Input Voltage: 5V logic level for control.
   • Motor Supply Voltage: 6V to 27V DC.
2. Current Capacity:
   • Maximum Continuous Output Current: 43A.
   • Peak Output Current: 80A (short duration).
3. Logic Input Levels:
   • Low-Level Input Voltage: 0V to 1.5V.
   • High-Level Input Voltage: 3V to 5V.
4. PWM Frequency:
   • Maximum Supported Frequency: 25kHz.
5. Power Dissipation:
   • Typical: 6W.
   • With proper heatsink and cooling.
6. Standby Current:
   • Less than 5mA.

Mechanical Specifications

1. PCB Dimensions:
   • Length: Approximately 55mm.
   • Width: Approximately 45mm.
   • Height: Approximately 15mm (excluding heatsinks).
2. Mounting Holes:
   • Typically 4 holes for easy mounting.
   • Diameter: ~3mm.
3. Heatsinks:
   • Integrated aluminum heatsinks for thermal management.

Interface and Connections

1. Input Pins:
   • VCC: 5V logic supply input.
   • GND: Ground connection.
   • RPWM: Right PWM input for motor direction.
   • LPWM: Left PWM input for motor direction.
   • R_EN: Enable pin for right direction.
   • L_EN: Enable pin for left direction.
   • CSA: Current sensing analog output.
2. Output Terminals:
   • M+: Positive motor output.
   • M-: Negative motor output.
   • VCC: Motor power supply.
3. Indicator LEDs:
   • Status LEDs for indicating operation and errors.

Protection Features

1. Overcurrent Protection:
   • Automatically shuts off the output when current exceeds the safe limit.
2. Overtemperature Protection:
   • Protects the IC from overheating by disabling the outputs.
3. Undervoltage Lockout:
   • Disables the driver if the supply voltage drops below the operational threshold.
4. Short-Circuit Protection:
   • Safeguards against motor or circuit shorts.

Key Features

1. High Current Capacity:
   • Ideal for driving high-current motors up to 43A continuously.
2. Dual BTS7960 ICs:
   • Provides robust H-Bridge configuration for bidirectional motor control.
3. PWM Control:
   • Supports variable speed and direction via Pulse Width Modulation.
4. Integrated Heat Management:
   • Aluminum heatsinks and thermal shutdown feature ensure safe operation.
5. Compact and Modular Design:
   • Easy integration with microcontrollers like Arduino, Raspberry Pi, or STM32.
6. Current Sensing:
   • CSA pin allows monitoring of current drawn by the motor.

Applications

• DC motor control in robotics and industrial automation.
• Electric vehicles or large RC models.
• Conveyor belts and high-load actuators.
• DIY projects and hobbyist motor control.