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TDA8551T/N1 from PHILIPS

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TDA8551T/N1

Manufacturer: PHILIPS, NXP

TDA8551; 1 W BTL audio amplifier with digital volume control

Partnumber Manufacturer Quantity Availability
TDA8551T/N1,TDA8551TN1 PHILIPS, NXP 2085 In Stock

Description and Introduction

TDA8551; 1 W BTL audio amplifier with digital volume control The TDA8551T/N1 is a power amplifier manufactured by PHILIPS (now NXP Semiconductors). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Type:** Mono BTL (Bridge-Tied Load) audio power amplifier  
- **Operating Voltage Range:** 4.5V to 18V  
- **Output Power:**  
  - 1.1W (typical) into 8Ω at 5V supply  
  - 3W (typical) into 8Ω at 12V supply  
- **Gain Adjustable:** Yes (via external resistors)  
- **THD (Total Harmonic Distortion):** Low distortion at rated output  
- **Standby Mode:** Yes (low power consumption when inactive)  
- **Package:** SO8 (Small Outline 8-pin package)  

### **Descriptions:**  
- Designed for portable audio applications such as radios, portable TVs, and multimedia devices.  
- Operates in BTL configuration, eliminating the need for an output coupling capacitor.  
- Features thermal protection and short-circuit protection.  

### **Features:**  
- **Low Quiescent Current:** Suitable for battery-powered devices.  
- **Wide Supply Voltage Range:** Supports operation from 4.5V to 18V.  
- **Adjustable Gain:** Allows flexibility in system design.  
- **Standby Function:** Reduces power consumption when not in use.  
- **Robust Protection:** Includes thermal and short-circuit protection.  

This information is based on the official datasheet and manufacturer documentation.

Application Scenarios & Design Considerations

TDA8551; 1 W BTL audio amplifier with digital volume control

Alternative Part Number

  • LM4861M --: Class-AB audio power amplifier in SOIC-8 with similar 1W output and single-supply operation, a common drop-in functional substitute for the TDA8551T.
  • PAM8403 --: Low-voltage class-D audio amplifier offering comparable output power and efficiency, suitable for replacing the TDA8551T in portable audio designs.
  • TDA2822M --: Widely available dual low-voltage audio power amplifier in DIP-8/SO-8, functionally similar and often used as an alternative to Philips TDA8551T audio stages.
  • LM4863 --: Class-AB stereo audio amplifier with similar 1W output and supply range, widely available and pin-compatible in function for many TDA8551T applications.

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