L297 Stepper Motor Controller IC

Overview

The L297 Stepper Motor Controller IC is a versatile and essential component for any robotics or automation project requiring precise stepper motor control. This integrated circuit consolidates all the necessary control logic for both bipolar and unipolar stepper motors into a single chip, simplifying your design and reducing component count. By taking step, direction, and mode signals from your microcontroller, the L297 intelligently generates the correct phase sequences to drive your motor, often paired with a driver like the L298N for high-power applications.

Key Features

• Complete Stepper Motor Control: Integrates all control circuitry for bipolar and unipolar stepper motors.
• Half-Step and Full-Step Modes: Provides flexible stepping options for various precision and torque requirements.
• Built-in PWM Chopper: Regulates motor current for efficient and smooth operation.
• Clockwise/Counterclockwise Direction Control: Simple logic inputs for direction changes.
• Reset and Enable Functions: Allows for easy system control and power management.
• Wide Operating Voltage: Supports a broad range of supply voltages (typically 4.75V to 7V for logic).
• Compact DIP-20 Package: Easy to prototype with on breadboards and PCBs.

Technical Specifications

• Supply Voltage (VCC): 4.75V to 7V
• Logic Input Voltage: TTL/CMOS compatible
• Output Current: Up to 100mA (for driving external transistors/drivers)
• Stepping Modes: Full-step (2-phase), Half-step (1-2 phase), and Wave drive (1-phase)
• Package: 20-pin DIP (Dual Inline Package)
• Operating Temperature: -40°C to +85°C
• Reference Voltage: 0.5V to VCC (for current sensing)

Applications & Use Cases

• Robotics: Precise positioning in robotic arms, CNC machines, and 3D printers.
• Automation: Control of conveyor belts, pick-and-place machines, and automated guided vehicles.
• Consumer Electronics: Camera gimbals, pan-tilt mechanisms, and smart home devices.
• Education: Ideal for university labs and hobbyist projects to learn stepper motor control.
• Medical Devices: Precision syringe pumps and diagnostic equipment.

What's Included

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

Compatibility

• Microcontrollers: Works with any MCU that provides step and direction signals, such as Arduino, Raspberry Pi, ESP32, STM32, and PIC.
• Driver ICs: Commonly paired with L298N, L293D, or discrete transistor H-bridges for higher current applications.
• Stepper Motors: Compatible with both bipolar and unipolar stepper motors (typically 4, 5, or 6 wires).

MOKWN Recommendation

For a complete stepper motor driver solution, pair the L297 with the L298N Dual H-Bridge Driver available at MOKWN. This combination provides a robust, cost-effective solution for driving stepper motors up to 2A per phase. Whether you're a student, hobbyist, or professional engineer, the L297 is a reliable choice for your motion control projects. Order now and enjoy fast delivery across Egypt!