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L297/1 from STM,ST Microelectronics

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15.625ms

L297/1

Manufacturer: STM

STEPPER MOTOR CONTROLLERS

Partnumber Manufacturer Quantity Availability
L297/1,L2971 STM 10000 In Stock

Description and Introduction

STEPPER MOTOR CONTROLLERS The L297/1 is a stepper motor controller IC manufactured by STMicroelectronics (STM). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** STMicroelectronics (STM)  
- **Type:** Stepper Motor Controller  
- **Operating Voltage:** 5V to 7V (logic supply)  
- **Output Current:** Up to 1A (with external drivers)  
- **Package:** DIP (Dual In-line Package) or SO (Small Outline)  
- **Control Modes:** Full-step, half-step, and microstepping (with external circuitry)  
- **Clock Input:** Accepts external clock signals for step control  
- **Protection Features:** Thermal shutdown and overcurrent protection (when used with appropriate drivers)  

### **Descriptions:**
- The L297/1 is designed to simplify the control of bipolar stepper motors.  
- It generates phase signals for driving external power stages (such as L298 or L6203).  
- The IC includes a built-in translator that converts step and direction inputs into motor coil excitation sequences.  
- It supports both wave drive and two-phase excitation modes.  

### **Features:**
- **Integrated Control Logic:** Reduces the need for complex external circuitry.  
- **Direction and Step Inputs:** Allows easy interfacing with microcontrollers.  
- **Chopper Control:** Enables constant current drive for improved motor performance.  
- **Synchronization Capability:** Can be synchronized with other L297/1 controllers.  
- **Low Power Consumption:** Suitable for battery-operated applications.  

For detailed electrical characteristics and application circuits, refer to the official STMicroelectronics datasheet.

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