The L6470HTR from STMicroelectronics is a state-of-the-art, fully integrated solution for driving two-phase bipolar stepper motors with a wide range of microstepping options. This advanced motor driver is a perfect fit for applications that require precise positioning and smooth motion profiles, such as 3D printers, CNC machines, robotics, and a variety of industrial automation systems.

Key Features

• Voltage Range: The device operates from a supply voltage range of 8 to 45 V, providing the flexibility to be used in various system configurations and ensuring compatibility with a wide range of stepper motors.
• Current Control: It can deliver up to 3 A of current to each motor phase, with adjustable overcurrent, overtemperature, and under-voltage protection, ensuring safe and reliable operation.
• Microstepping: Users can select from a full range of microstepping options up to 1/128 of a step, allowing for ultra-smooth motion and high-resolution positioning.
• Integrated Controller: The L6470HTR integrates a dual full-bridge gate driver with synchronous rectification and an SPI interface for configuration and control, simplifying design and reducing external component count.
• Advanced Features: It includes advanced features such as programmable speed profile generation, stall detection, and a programmable non-dissipative overcurrent protection.

Benefits

The L6470HTR motor driver simplifies the design process by integrating most of the components required for driving a stepper motor, including an oscillator, a control logic, a gate driver, and a power stage. Its programmable features and comprehensive protection schemes make it an ideal choice for sophisticated and reliable motor control applications.

Applications

Suitable for a diverse range of applications, the L6470HTR excels in scenarios that demand precision and reliability. Its robust design and versatile feature set make it an excellent choice for engineers looking to develop high-performance systems with stepper motors.

Conclusion

With the L6470HTR, STMicroelectronics offers a powerful, integrated motor driver solution that meets the needs of advanced motion control applications. Its ease of use, combined with its high level of integration, ensures a cost-effective and compact design footprint, making it a preferred choice for professionals and hobbyists alike.