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STK672-080

Stepping Motor Driver (Sine Wave Drive) Output Current: 2.8 A (No Heat Sink*) Unipolar constant-current chopper (external excitation PWM) circuit with built-in microstepping controller

Partnumber Manufacturer Quantity Availability
STK672-080,STK672080 18 In Stock

Description and Introduction

Stepping Motor Driver (Sine Wave Drive) Output Current: 2.8 A (No Heat Sink*) Unipolar constant-current chopper (external excitation PWM) circuit with built-in microstepping controller The **STK672-080** is a hybrid IC (integrated circuit) designed for stepping motor drive applications. Below are its key specifications, descriptions, and features based on factual information:

### **Manufacturer:**  
SANYO Electric Co., Ltd. (now part of ON Semiconductor or other successors after corporate restructuring).  

### **Specifications:**  
- **Type:** Stepper Motor Driver Hybrid IC  
- **Output Current:** 2.0 A (max per phase)  
- **Supply Voltage (VCC):** Up to 42V  
- **Control Method:** PWM (Pulse Width Modulation) chopper control  
- **Built-in Protection Circuits:** Thermal shutdown (TSD), overcurrent protection (OCP)  
- **Phase Excitation Modes:** Supports full-step, half-step, and microstepping (depending on external controller configuration)  
- **Package:** SIP (Single In-line Package) with a built-in heat sink  

### **Descriptions:**  
- The STK672-080 integrates power MOSFETs and control circuitry to drive bipolar stepper motors efficiently.  
- It is designed for applications requiring high torque and precision, such as printers, CNC machines, and industrial automation.  
- The IC includes a built-in current detection resistor for simplified external circuit design.  

### **Features:**  
1. **High Efficiency:** Utilizes PWM chopper control for reduced power dissipation.  
2. **Compact Design:** Hybrid integration minimizes external component count.  
3. **Protection Functions:**  
   - Thermal shutdown (TSD) for overheating prevention.  
   - Overcurrent protection (OCP) safeguards against short circuits.  
4. **Wide Voltage Range:** Supports motor supply voltages up to 42V.  
5. **Compatibility:** Works with external microcontrollers or logic circuits for step/direction control.  

For exact electrical characteristics, pin configurations, or application circuits, refer to the official **datasheet** from the manufacturer.

Application Scenarios & Design Considerations

Stepping Motor Driver (Sine Wave Drive) Output Current: 2.8 A (No Heat Sink*) Unipolar constant-current chopper (external excitation PWM) circuit with built-in microstepping controller

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