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STK6712BMK3 from SANYO

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STK6712BMK3

Manufacturer: SANYO

Unipolar Fixed-current Chopper-type 4-phase Stepping Motor Driver

Partnumber Manufacturer Quantity Availability
STK6712BMK3 SANYO 1149 In Stock

Description and Introduction

Unipolar Fixed-current Chopper-type 4-phase Stepping Motor Driver The **STK6712BMK3** is a hybrid IC (integrated circuit) designed for motor control applications, particularly for driving stepping motors. Below are its key specifications, descriptions, and features based on available information:

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

### **Specifications:**  
1. **Type:** Hybrid IC for stepping motor drive.  
2. **Output Configuration:** Unipolar (typically used for 4-phase stepping motors).  
3. **Supply Voltage:**  
   - **Motor Supply (VCC2):** Typically up to **35V** (check datasheet for exact ratings).  
   - **Logic Supply (VCC1):** Typically **5V** (for control signals).  
4. **Output Current:**  
   - **Peak Current:** Up to **2.0A per phase** (subject to thermal conditions).  
   - **Continuous Current:** Lower than peak (exact value depends on heat dissipation).  
5. **Control Inputs:**  
   - Compatible with **TTL/CMOS logic levels** for phase control signals.  
   - Includes **clock input, direction control, and enable/disable functions**.  
6. **Protection Features:**  
   - **Thermal Shutdown** (overheating protection).  
   - **Overcurrent Protection** (internal current limiting).  
7. **Package:**  
   - **Multiwatt15V** (15-pin, vertical mount, insulated metal substrate for heat dissipation).  
8. **Operating Temperature Range:**  
   - Typically **-20°C to +85°C** (industrial-grade).  

### **Descriptions:**  
- The **STK6712BMK3** is a **unipolar stepper motor driver IC** that integrates power transistors and control logic.  
- It simplifies motor drive circuit design by combining high-current output stages with logic-level inputs.  
- Designed for applications like **printers, CNC machines, robotics, and automation systems**.  

### **Features:**  
1. **Built-in Darlington Transistor Arrays** for high-current motor driving.  
2. **Low Saturation Voltage** for efficient power handling.  
3. **Internal Flyback Diodes** for inductive load protection.  
4. **Single-Chip Solution** reduces external component count.  
5. **Easy Interface** with microcontrollers or pulse generators.  

For exact electrical characteristics, refer to the **official datasheet** from SANYO/ON Semiconductor.  

(Note: Always verify parameters with the latest datasheet, as specifications may vary by revision.)

Application Scenarios & Design Considerations

Unipolar Fixed-current Chopper-type 4-phase Stepping Motor Driver

Alternative Part Number

  • SLA7026M --: Unipolar stepper motor driver IC with similar current rating and function, commonly used as a replacement for Sanko/Sanyo STK-series drivers.
  • TB6600HG --: Bipolar/unipolar stepper driver IC with comparable voltage and current capability, widely available and often used to replace obsolete STK motor driver modules.
  • L298N --: Dual H-bridge motor driver IC that can drive stepper motors in similar applications, though it requires external logic and may need circuit adaptation.
  • STK672-440A-E --: Same STK672 stepper motor driver family with integrated controller, similar voltage and current ratings, and a common drop-in replacement for STK6712 series in many designs.

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