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STK672-120 from SANYO

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STK672-120

Manufacturer: SANYO

Unipolar Fixed-Current Chopper (Self-Excited PWM) Scheme and Built-in Phase Signal Distribution IC Two-Phase Stepping Motor Drive (Square Wave Drive) Output Current: 2.4 A

Partnumber Manufacturer Quantity Availability
STK672-120,STK672120 SANYO 3108 In Stock

Description and Introduction

Unipolar Fixed-Current Chopper (Self-Excited PWM) Scheme and Built-in Phase Signal Distribution IC Two-Phase Stepping Motor Drive (Square Wave Drive) Output Current: 2.4 A The STK672-120 is a hybrid IC (integrated circuit) designed for driving stepping motors. Below are its specifications, descriptions, and features based on factual information:  

### **Manufacturer:**  
- **SANYO Electric Co., Ltd.** (Now part of ON Semiconductor after acquisition)  

### **Specifications:**  
- **Type:** Stepper Motor Driver (Hybrid IC)  
- **Output Current:** 4.0 A (max)  
- **Supply Voltage (Motor):** Up to 50 V  
- **Supply Voltage (Logic):** 5 V ±5%  
- **Phase Configuration:** 2-phase bipolar  
- **Operating Temperature Range:** -20°C to +85°C  
- **Package Type:** SIP (Single In-line Package)  
- **Pins:** 15  

### **Descriptions:**  
- The STK672-120 is a unipolar/bipolar stepper motor driver IC with built-in microstepping control.  
- It includes a built-in current detection circuit for motor current regulation.  
- Designed for smooth motor operation with low vibration and noise.  
- Suitable for applications requiring precise positioning, such as printers, CNC machines, and robotics.  

### **Features:**  
- **Microstepping Capability:** Supports 1/8, 1/16, and 1/32 microstepping modes.  
- **Built-in Current Detection:** Eliminates the need for external sense resistors.  
- **Low Heat Generation:** Optimized power efficiency with low saturation voltage.  
- **Protection Circuits:** Includes thermal shutdown and overcurrent protection.  
- **Easy Control Interface:** Compatible with standard logic-level signals (5V).  

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

Application Scenarios & Design Considerations

Unipolar Fixed-Current Chopper (Self-Excited PWM) Scheme and Built-in Phase Signal Distribution IC Two-Phase Stepping Motor Drive (Square Wave Drive) Output Current: 2.4 A

Alternative Part Number

  • TB6600HG --: Stepper motor driver IC with similar function and voltage/current capability, widely used as a direct replacement for STK672 series in many designs.
  • A4988 --: Popular bipolar stepper motor driver IC offering comparable microstepping control and current handling, suitable for similar applications.
  • DRV8825 --: Integrated stepper motor driver with higher current rating and microstepping support, a common functional substitute when STK672-120 is unavailable.
  • STK672-110 --: Same STK672 stepper motor driver family with similar pinout and voltage/current ratings, often used as a direct substitute in 2-phase unipolar drive applications.
  • STK672-040 --: Related STK672 series driver with comparable output stage and control interface; check current rating and package before substitution.
  • TB62209FG --: Alternative 2-phase unipolar stepper motor driver IC with integrated PWM current control, suitable as a functional replacement with minor circuit adjustments.

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