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TDA7265B
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TDA7265B

Product Overview

Category

TDA7265B belongs to the category of audio amplifier integrated circuits.

Use

It is primarily used for amplifying audio signals in various electronic devices such as televisions, radios, and home theater systems.

Characteristics

  • TDA7265B is a dual bridge amplifier with a maximum output power of 25 watts per channel.
  • It operates on a wide supply voltage range of 8V to 18V.
  • The device offers low distortion and high-quality sound reproduction.
  • It has built-in thermal and short-circuit protection mechanisms.

Package

The TDA7265B is available in a multiwatt15 package, which is a 15-lead, plastic power package.

Essence

The essence of TDA7265B lies in its ability to provide high-quality audio amplification in a compact and efficient package.

Packaging/Quantity

The TDA7265B is typically sold in reels or tubes containing a specified quantity of integrated circuits. The exact quantity may vary depending on the manufacturer's packaging standards.

Specifications

  • Supply Voltage Range: 8V to 18V
  • Output Power: 25W per channel
  • Total Harmonic Distortion: <0.5%
  • Signal-to-Noise Ratio: >80dB
  • Operating Temperature Range: -40°C to +150°C

Detailed Pin Configuration

The TDA7265B features a 15-pin configuration:

  1. Mute/Standby
  2. Input 1 Non-Inverting
  3. Input 1 Inverting
  4. GND (Ground)
  5. Output 1
  6. VCC (Positive Supply Voltage)
  7. Bootstrap
  8. Output 2
  9. Input 2 Inverting
  10. Input 2 Non-Inverting
  11. Thermal Protection
  12. Short-Circuit Protection
  13. GND (Ground)
  14. Mute/Standby
  15. VCC (Positive Supply Voltage)

Functional Features

  • Dual bridge amplifier configuration for stereo sound output.
  • Mute/standby function for power-saving and audio muting.
  • Thermal and short-circuit protection to prevent damage to the device.
  • Bootstrap capacitor for improved efficiency and reduced distortion.

Advantages and Disadvantages

Advantages

  • High-quality audio amplification with low distortion.
  • Wide supply voltage range allows for versatile applications.
  • Built-in protection mechanisms ensure device safety.
  • Compact package size for space-constrained designs.

Disadvantages

  • Limited output power compared to higher wattage amplifiers.
  • Requires external components for proper operation.
  • May require additional heat sinking for prolonged high-power usage.

Working Principles

The TDA7265B operates as a dual bridge amplifier, utilizing both positive and negative supply voltages to amplify audio signals. It employs a class AB amplifier configuration, which combines the efficiency of class B amplifiers with the low distortion characteristics of class A amplifiers. The device uses internal feedback networks to maintain stability and improve overall performance.

Detailed Application Field Plans

The TDA7265B finds application in various electronic devices that require audio amplification, including: - Televisions - Radios - Home theater systems - Portable speakers - Car audio systems

Detailed and Complete Alternative Models

Some alternative models to the TDA7265B include: - TDA7266 - Similar specifications with a different pin configuration. - TDA7267 - Higher output power version with 40W per channel. - TDA7269 - Lower output power version with 10W per channel.

These alternative models offer different features and power ratings, allowing designers to choose the most suitable option for their specific requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de TDA7265B en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of TDA7265B in technical solutions:

  1. Q: What is TDA7265B? A: TDA7265B is a dual bridge amplifier IC that can be used for audio amplification in various applications.

  2. Q: What is the maximum output power of TDA7265B? A: The maximum output power of TDA7265B is typically 25 watts per channel.

  3. Q: Can TDA7265B be used in stereo applications? A: Yes, TDA7265B is designed for stereo applications and can drive two speakers simultaneously.

  4. Q: What is the recommended power supply voltage for TDA7265B? A: The recommended power supply voltage for TDA7265B is typically between 8V and 18V.

  5. Q: Can TDA7265B operate with a single power supply? A: Yes, TDA7265B can operate with a single power supply, but it requires a split power supply configuration for optimal performance.

  6. Q: What is the input impedance of TDA7265B? A: The input impedance of TDA7265B is typically around 30 kilohms.

  7. Q: Does TDA7265B have built-in thermal protection? A: Yes, TDA7265B has built-in thermal protection circuitry to prevent overheating and damage.

  8. Q: Can TDA7265B be used in portable battery-powered devices? A: Yes, TDA7265B can be used in portable devices, but the power supply should be carefully designed to meet the required voltage and current specifications.

  9. Q: What is the typical total harmonic distortion (THD) of TDA7265B? A: The typical THD of TDA7265B is around 0.1% at 1 watt output power.

  10. Q: Can TDA7265B be used in automotive audio systems? A: Yes, TDA7265B can be used in automotive audio systems, but additional considerations should be taken for noise suppression and power supply stability.

Please note that the answers provided here are general and may vary depending on specific application requirements and circuit design considerations.