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TDA8551 from PHILIPS

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TDA8551

Manufacturer: PHILIPS, PHI

1 W BTL audio amplifier with digital volume control
Partnumber Manufacturer Quantity Availability
TDA8551 PHILIPS, PHI 298 In Stock

Description and Introduction

1 W BTL audio amplifier with digital volume control The TDA8551 is a mono audio amplifier manufactured by PHILIPS (now NXP Semiconductors).  

### **Specifications:**  
- **Type:** Mono BTL (Bridge-Tied Load) audio amplifier  
- **Output Power:** 1 W (typical) into an 8 Ω load at 5 V supply  
- **Supply Voltage Range:** 2.7 V to 5.5 V  
- **Quiescent Current:** 4 mA (typical)  
- **Gain Control:** Adjustable via external resistors  
- **THD (Total Harmonic Distortion):** Low distortion levels  
- **Package:** SO8 (Small Outline 8-pin package)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions and Features:**  
- Designed for portable audio applications  
- Requires minimal external components  
- Built-in mute function  
- Short-circuit and thermal protection  
- Low power consumption  
- Suitable for battery-powered devices  

This information is based on the manufacturer's datasheet. For detailed technical specifications, refer to the official documentation.

Application Scenarios & Design Considerations

1 W BTL audio amplifier with digital volume control

Alternative Part Number

  • LM386 --: Classic low-voltage audio power amplifier in the same power class, widely available and pin-compatible in many designs.
  • TDA2822 --: Dual low-voltage audio amplifier with similar supply range and output power, suitable for portable audio applications.
  • PAM8403 --: Modern class-D audio amplifier offering higher efficiency and comparable output power for small speaker loads.
  • LM4861M --: 1W audio power amplifier in SOIC-8 with similar supply range and pin-compatible class-AB function, widely available and often used as a substitute for small speaker drivers.
  • TDA2822M --: Dual low-voltage audio power amplifier in DIP-8, a common legacy alternative for small audio output stages with comparable supply voltage range.

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