L297 – Stepper Motor Controller IC (DIP-20)

Description

The L297 is a dedicated stepper motor controller IC designed to generate the necessary control signals for driving 2-phase bipolar and 4-phase unipolar stepper motors. When paired with a power stage IC (such as the L298 dual full-bridge driver), it forms a complete, high-performance stepper motor control system. It simplifies the design process by handling the complex phase sequencing, allowing the host microcontroller to control motor direction and step rate with simple signals.

This controller supports three different drive modes: Full-Step, Half-Step, and Wave-Drive. The L297 also incorporates an integrated PWM (Pulse Width Modulation) circuit to control the current in the motor windings, which improves efficiency and provides precise torque control. Its ability to work seamlessly with various power stages makes it an industry-standard choice for motion control applications.

Housed in a DIP-20 through-hole package, the L297 is exceptionally easy to use on breadboards and development PCBs. It is widely utilized in industrial robotics, CNC machines, and various automation projects where reliable and smooth stepper motor performance is required.

Note: Product images are for reference only. The actual product may vary in appearance or manufacturer marking depending on stock availability. Please refer to the datasheet available in the Attachment section for complete electrical characteristics and application circuits.

Features

• Generates phase sequences for 2-phase bipolar and 4-phase unipolar motors
• Supports Full-Step, Half-Step, and Wave-Drive modes
• Integrated PWM current control (chopper)
• Simple interface for Direction, Clock, and Reset signals
• Operates with low-power consumption
• Compatible with L298 and other power stage drivers
• DIP-20 through-hole package for easy prototyping

Benefits

• Reduces microcontroller firmware complexity by offloading sequencing logic
• Provides smooth and efficient motor control via PWM current limiting
• High compatibility with popular motor driver power stages
• Reliable performance for high-precision motion control
• Easy to implement in various industrial and hobbyist applications

Applications

• CNC Machine Control Systems
• Industrial Robotics and Automation
• 3D Printer Stepper Control
• Automated Surveillance Camera Panning
• Plotters and Precision Positioners
• Medical Diagnostic Equipment
• Educational Electronics and Laboratory Gear

Package Includes

• 1 x L297 Stepper Motor Controller IC (DIP-20)

Specifications