IC Phoenix logo

Home ›  T  › T23 > TDA5145T

TDA5145T from

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

TDA5145T

Manufacturer: PHI, PH

Brushless DC motor drive circuit

Partnumber Manufacturer Quantity Availability
TDA5145T PHI, PH 523 In Stock

Description and Introduction

Brushless DC motor drive circuit The TDA5145T is a motor driver IC manufactured by **NXP Semiconductors**. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** NXP Semiconductors  
- **Type:** Brushless DC (BLDC) Motor Driver  
- **Operating Voltage (VCC):** 8V to 18V  
- **Output Current (per phase):** Up to 1.5A (peak)  
- **Commutation Method:** Sensorless (back-EMF sensing)  
- **Package:** SO20 (20-pin Small Outline package)  
- **Operating Temperature Range:** -25°C to +85°C  

### **Descriptions:**
- The TDA5145T is designed for driving **3-phase brushless DC motors** in sensorless applications.  
- It integrates **back-EMF zero-crossing detection** for commutation timing.  
- The IC includes built-in **protection features** such as undervoltage lockout (UVLO) and thermal shutdown.  
- It is commonly used in **consumer electronics, automotive applications, and small industrial motor drives**.  

### **Features:**
- **Sensorless commutation** (no Hall sensors required).  
- **Built-in startup circuitry** for reliable motor starting.  
- **Adjustable commutation timing** via external components.  
- **Overcurrent protection** (current limiting).  
- **Thermal shutdown** to prevent overheating.  
- **Low standby current consumption**.  

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

Application Scenarios & Design Considerations

Brushless DC motor drive circuit

Alternative Part Number

  • MC33035DW --: Three-phase brushless DC motor controller in SOIC package, functionally similar to the TDA5145T and widely available.
  • LM6218N --: Brushless DC motor driver/controller with comparable drive capability, suitable as a functional replacement in many applications.
  • STK672-040 --: Motor driver IC offering similar three-phase drive functionality, usable as an alternative with minor circuit adaptation.
  • ML4425CS --: Brushless DC motor commutation controller with comparable sensorless drive features, suitable as a functional substitute.
  • ST72141K2 --: Integrated motor control IC with BLDC drive capability, usable as an alternative solution when the original is unavailable.
  • TDA5140AT --: Same TDA514x family of brushless DC motor controllers from the original Philips/NXP line, with closely matching function and supply voltage, making it a strong drop-in candidate.
  • TDA5142T --: Sister device in the TDA514x motor driver family with similar pinout and drive capability, suitable as a functional substitute after checking current ratings.
  • TDA5141T --: Another member of the same brushless motor controller series, offering comparable commutation and output stage behavior for this application.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips