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TBA820M

1.2W AUDIO AMPLIFIER

Partnumber Manufacturer Quantity Availability
TBA820M 220 In Stock

Description and Introduction

1.2W AUDIO AMPLIFIER The TBA820M is a low-power audio amplifier integrated circuit (IC) manufactured by STMicroelectronics.  

### **Specifications:**  
- **Supply Voltage Range:** 3V to 16V  
- **Output Power:** 1.2W (at 12V, 8Ω load, 10% THD)  
- **Quiescent Current:** 4mA (typical)  
- **Gain Adjustable:** Yes (via external components)  
- **Total Harmonic Distortion (THD):** ~1% (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** 8-pin DIP (Dual In-line Package) or SO-8 (Surface Mount)  

### **Descriptions and Features:**  
- Designed for low-voltage battery-operated applications.  
- Includes built-in thermal protection.  
- Requires minimal external components for operation.  
- Suitable for small audio amplification in portable devices, radios, and toys.  
- Features short-circuit protection.  
- Can drive an 8Ω or 4Ω speaker.  
- Adjustable gain through external resistors and capacitors.  

The TBA820M is an older IC but remains useful for simple audio amplification projects.

Application Scenarios & Design Considerations

1.2W AUDIO AMPLIFIER

Alternative Part Number

  • LM386N-1 --: Low-voltage audio power amplifier in DIP-8, widely used as a direct substitute for the TBA820M in small audio circuits with similar gain and supply range.
  • TDA2822M --: Dual low-voltage audio amplifier in DIP-8, commonly used as a replacement for TBA820M in portable audio applications with comparable output power.
  • UTC820M --: Pin-compatible audio amplifier clone of the TBA820M series, offering equivalent electrical characteristics for direct drop-in replacement.

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