TBA820M

Product Overview

Category

TBA820M belongs to the category of audio amplifier integrated circuits.

Use

The TBA820M is primarily used for amplifying audio signals in various electronic devices such as radios, televisions, portable music players, and other audio equipment.

Characteristics

• The TBA820M is a monolithic audio amplifier IC that operates on low voltage.
• It offers high power output with low distortion.
• This integrated circuit is designed to work with a wide range of supply voltages.
• The TBA820M has built-in thermal shutdown protection to prevent overheating.
• It provides excellent audio quality and can drive speakers with impedance ranging from 4 to 16 ohms.

Package

The TBA820M is available in a small outline package (SOP) or dual inline package (DIP), making it suitable for compact electronic devices.

Essence

The essence of the TBA820M lies in its ability to amplify audio signals efficiently while maintaining high sound quality and low distortion.

Packaging/Quantity

The TBA820M is typically sold in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the manufacturer and supplier.

Specifications

• Supply Voltage: 3V - 16V
• Output Power: Up to 1.2W
• Total Harmonic Distortion: <0.5%
• Input Impedance: 30k ohms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TBA820M has a total of 8 pins, which are assigned specific functions:

1. Pin 1: Audio Input
2. Pin 2: Non-Inverting Input
3. Pin 3: Inverting Input
4. Pin 4: Ground
5. Pin 5: Output
6. Pin 6: Supply Voltage
7. Pin 7: Bypass Capacitor
8. Pin 8: Thermal Shutdown

Functional Features

• High-quality audio amplification with low distortion.
• Wide operating voltage range allows for flexibility in various applications.
• Built-in thermal shutdown protection prevents overheating and damage to the IC.
• Compact package size makes it suitable for space-constrained electronic devices.

Advantages and Disadvantages

Advantages

• High power output capability.
• Low distortion for improved audio quality.
• Wide supply voltage range enhances versatility.
• Compact package size for easy integration into different devices.

Disadvantages

• Limited output power compared to higher wattage amplifiers.
• Requires external components such as capacitors for proper operation.
• May not be suitable for high-power audio applications.

Working Principles

The TBA820M operates as a class AB audio amplifier. It amplifies the input audio signal using a combination of transistors and internal circuitry. The amplified signal is then delivered to the output pin, which can drive speakers within the specified impedance range. The built-in thermal shutdown feature protects the IC from excessive heat generated during operation.

Detailed Application Field Plans

The TBA820M finds application in various electronic devices where audio amplification is required. Some common application fields include:

1. Portable music players
2. Radios and televisions
3. Car audio systems
4. Computer speakers
5. Home theater systems

Detailed and Complete Alternative Models

1. LM386: A popular audio amplifier IC with similar characteristics and performance.
2. TDA7052: Another integrated circuit suitable for low-power audio amplification.
3. NJM2073: A versatile audio amplifier IC with built-in volume control functionality.

These alternative models offer similar features and can be used as substitutes for the TBA820M in various applications.

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