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M5451QT from ST,ST Microelectronics

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M5451QT

Manufacturer: ST

LED DISPLAY DRIVERS

Partnumber Manufacturer Quantity Availability
M5451QT ST 52 In Stock

Description and Introduction

LED DISPLAY DRIVERS The part **M5451QT** is manufactured by **STMicroelectronics (ST)**.  

### **Specifications:**  
- **Type:** Stepper Motor Driver  
- **Output Current:** Up to 1.5A per phase  
- **Supply Voltage:** 10V to 46V  
- **Logic Supply Voltage:** 5V  
- **Package:** PowerDIP20  
- **Operating Temperature Range:** -40°C to +150°C  
- **Control Interface:** Step and Direction inputs  
- **Protection Features:** Thermal shutdown, overcurrent protection  

### **Descriptions & Features:**  
- Designed for bipolar stepper motor control  
- Built-in PWM current control for smooth motor operation  
- Supports full-step, half-step, and microstepping modes  
- Low power dissipation due to efficient power management  
- Suitable for industrial automation, robotics, and CNC applications  

For exact details, refer to the official STMicroelectronics datasheet.

Application Scenarios & Design Considerations

LED DISPLAY DRIVERS

Alternative Part Number

  • ULN2003A --: Seven-channel Darlington sink driver in the same class as the M5451QT, widely available and pin-compatible in function for LED/relay driving.
  • MC1413BDG --: Seven-channel Darlington array with similar output current and voltage ratings, a common drop-in functional replacement for M5451-type drivers.
  • ULQ2003A --: Same manufacturer family of Darlington sink drivers with comparable ratings, offering a close functional match with automotive-grade variants.

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