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TDA5140A from PHILIPS

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TDA5140A

Manufacturer: PHILIPS, PHI

Brushless DC motor drive circuit

Partnumber Manufacturer Quantity Availability
TDA5140A PHILIPS, PHI 1271 In Stock

Description and Introduction

Brushless DC motor drive circuit The TDA5140A is a motor driver IC manufactured by PHILIPS (now NXP Semiconductors). Below are its key specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Manufacturer:** PHILIPS (NXP Semiconductors)  
- **Type:** Brushless DC Motor Driver IC  
- **Operating Voltage:** 10V to 30V  
- **Output Current:** Up to 1.5A (peak)  
- **Package:** DIP-16 (Dual In-line Package)  
- **Commutation Method:** Sensorless (back-EMF sensing)  
- **Speed Control:** Analog/PWM input  
- **Protection Features:** Overcurrent, undervoltage lockout, and thermal shutdown  

### **Descriptions:**  
The TDA5140A is designed for driving 3-phase brushless DC motors in sensorless applications. It integrates commutation logic, power output stages, and protection circuits, making it suitable for consumer and industrial motor control applications.  

### **Features:**  
- **Sensorless Operation:** Uses back-EMF zero-crossing detection for commutation.  
- **Built-in PWM Speed Control:** Supports external PWM or analog voltage input for speed regulation.  
- **Integrated Power Outputs:** Includes three half-bridge drivers for driving MOSFETs or directly powering small motors.  
- **Protection Mechanisms:**  
  - Overcurrent protection (OCP)  
  - Undervoltage lockout (UVLO)  
  - Thermal shutdown  
- **Adjustable Startup Sequence:** Configurable for smooth motor start-up.  

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

Application Scenarios & Design Considerations

Brushless DC motor drive circuit

Alternative Part Number

  • KA8309B --: Direct functional equivalent for spindle motor and servo control in CD/VCD players, commonly used as a drop-in replacement for the TDA5140A.
  • AN8377N --: Similar three-phase motor driver IC for optical disc spindle control, pin-compatible in many designs and widely available.
  • BA6845FS --: Comparable motor driver IC with similar supply voltage and output current ratings, suitable as an alternative with minor circuit adjustment.
  • TDA5140AT --: Same motor driver function from the original Philips/NXP lineage, with the T-suffix package variant that is a direct drop-in for most TDA5140A designs.
  • TDA5141 --: Closely related three-phase motor driver in the same TDA51xx family, offering similar drive capability and pin-compatible usage in many applications.
  • TDA5142T --: Another member of the same motor driver family with comparable electrical characteristics, usable as a functional substitute where minor layout adjustments are acceptable.

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