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L297 from ST,ST Microelectronics

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L297

Manufacturer: ST

STEPPER MOTOR CONTROLLERS

Partnumber Manufacturer Quantity Availability
L297 ST 5230 In Stock

Description and Introduction

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

### **Manufacturer:**  
STMicroelectronics  

### **Specifications:**  
- **Supply Voltage (VCC):** 4.5V to 7V  
- **Output Current (per phase):** Up to 1A (with external drivers)  
- **Logic Input Voltage (VIH):** 2V (min)  
- **Logic Input Voltage (VIL):** 0.8V (max)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Options:** DIP-20, SO-20  

### **Descriptions:**  
The L297 is a bipolar stepper motor controller IC designed to generate phase signals for driving stepper motors in full-step, half-step, and wave-drive modes. It interfaces with external power drivers (such as the L298) to control bipolar stepper motors efficiently.  

### **Features:**  
- **Integrated Control Logic:** Generates phase sequences for stepper motor control.  
- **Multiple Modes:** Supports full-step, half-step, and wave-drive operation.  
- **Clock Input:** Accepts step pulses for motor movement.  
- **Direction Control:** Allows forward and reverse motor rotation.  
- **Enable Input:** Provides on/off control for the motor.  
- **Synchronous Rectification:** Reduces power dissipation in external drivers.  
- **Reset Input:** Allows initialization of the control logic.  
- **Chopper Control:** Compatible with PWM chopper drives for current regulation.  

This information is based solely on the manufacturer's datasheet and technical documentation.

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