High-Power Smart Car Motor Driver Module BTS7960 – 43A Current Limit Control with Semiconductor Cooling

Description

Product Overview

The High-Power Smart Car Motor Driver Module is a professional-grade H-bridge driver board designed for demanding DC motor control applications. Built around the Infineon BTS7960 high-current half-bridge NovalithIC, this module delivers exceptional power handling capability with integrated protection features, making it the ideal choice for robotics, smart cars, industrial automation, and electric vehicle projects .

The BTS7960 is a fully integrated high-current half-bridge driver that combines a p-channel high-side MOSFET and an n-channel low-side MOSFET with a dedicated driver IC in a single package. This unique architecture eliminates the need for a charge pump, significantly reducing electromagnetic interference (EMI) and simplifying circuit design . By using two BTS7960 ICs in parallel, the module forms a complete H-bridge capable of driving high-power DC motors in both directions with smooth PWM speed control.

What sets this module apart is its comprehensive protection system and 43A current limit capability. The built-in current limitation actively monitors and limits output current to approximately 43A, protecting both the driver and the motor from damage during overload or stall conditions . Additionally, the module features overtemperature shutdown, overvoltage lockout, undervoltage protection, and short circuit protection, ensuring reliable operation even in demanding environments.

The module supports PWM frequencies up to 25kHz, enabling smooth and efficient motor speed control. Logic-level inputs (3.3V to 5V compatible) allow direct connection to Arduino, ESP32, STM32, Raspberry Pi, and other microcontrollers without level shifters . Onboard current sense outputs provide real-time current monitoring and fault diagnosis capabilities, making this module suitable for both educational projects and professional industrial applications.

Key Features

• 43A Peak Current Capability: The module features a typical current limitation level of 43A, allowing it to drive high-torque DC motors used in robotics, e-bikes, and industrial automation .

• Integrated H-Bridge Configuration: Uses two BTS7960 half-bridge ICs to form a complete H-bridge, enabling bidirectional motor control with forward, reverse, and brake functions .

• Ultra-Low Path Resistance: Typical path resistance of only 16 mΩ at 25°C ensures minimal power loss and heat generation during high-current operation .

• Wide Operating Voltage Range: Accepts input voltages from 6V to 27V DC, making it compatible with 6V, 12V, and 24V battery systems .

• PWM Speed Control Support: Capable of PWM frequencies up to 25 kHz, with active freewheeling for smooth motor speed regulation and reduced switching losses .

• Comprehensive Protection Features: Includes overtemperature shutdown (with latch behavior), overvoltage lockout, undervoltage shutdown, overcurrent/short-circuit protection, and switched-mode current limitation .

• Low Quiescent Current: Consumes only 7 µA typical at 25°C when idle, making it suitable for battery-powered applications .

• Logic-Level Inputs: Control inputs accept 3.3V to 5V logic levels, allowing direct connection to Arduino, ESP32, and other microcontrollers without external level shifters .

• Current Sense & Diagnosis: IS pins provide analog current feedback for real-time monitoring, while status flags indicate fault conditions such as over-temperature or over-current .

• Semiconductor Cooling Design: The module features a dedicated heatsink design with thermal vias to efficiently dissipate heat from the BTS7960 packages, supporting sustained high-current operation .

Technical Specifications