TDA7387

Product Overview

Use

The TDA7387 is primarily used as a power amplifier in car audio systems. It provides high-quality audio amplification for speakers, allowing for enhanced sound reproduction in vehicles.

Characteristics

Power Supply: 12V - 18V
Output Power: 4 x 40W (max)
Number of Channels: 4
Amplifier Class: AB
Package Type: Multiwatt15V
Operating Temperature Range: -40°C to +105°C

Package and Quantity

The TDA7387 is available in a Multiwatt15V package. Each package contains one TDA7387 IC.

Specifications

Supply Voltage: 8V - 18V
Quiescent Current: 90mA
Total Harmonic Distortion: 0.05% (typical)
Signal-to-Noise Ratio: 90dB (typical)
Input Sensitivity: 150mV
Frequency Response: 20Hz - 20kHz

Pin Configuration

The TDA7387 has a total of 15 pins, which are assigned specific functions as follows:

MUTE
IN1-
IN1+
GND
VCC
OUT1
OUT2
OUT3
OUT4
IN4+
IN4-
IN3+
IN3-
IN2+
IN2-

Functional Features

High output power capability
Low distortion and noise
Built-in thermal protection
Short-circuit protection
Standby/mute function
Wide supply voltage range

Advantages and Disadvantages

Advantages

Provides high-quality audio amplification
Suitable for car audio systems
Offers thermal and short-circuit protection
Wide supply voltage range allows flexibility in power source

Disadvantages

Limited to 4 channels, may not be suitable for larger audio setups
Requires external components for a complete audio system

Working Principles

The TDA7387 operates as an AB class amplifier, combining the advantages of both Class A and Class B amplifiers. It utilizes multiple transistors to amplify the audio signal, providing high output power with low distortion and noise.

Detailed Application Field Plans

The TDA7387 is commonly used in various automotive audio applications, including:

Car stereo systems
Car multimedia systems
Car amplifiers
Car audio upgrades

Alternative Models

For those seeking alternative options, the following integrated circuits can be considered:

TDA7377
TDA7850
TDA7560
TDA7851

These models offer similar functionality and can be suitable replacements for the TDA7387 in different audio amplification applications.

In conclusion, the TDA7387 is a versatile integrated circuit designed for audio amplification in car audio systems. With its high output power capability, low distortion, and built-in protection features, it provides an excellent solution for enhancing sound quality in vehicles.

Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von TDA7387 in technischen Lösungen auf

Sure! Here are 10 common questions and answers related to the application of TDA7387 in technical solutions:

Q: What is TDA7387? A: TDA7387 is a class AB four-channel audio amplifier integrated circuit (IC) commonly used in automotive audio systems.
Q: What is the maximum power output of TDA7387? A: The maximum power output of TDA7387 is typically 4 x 45 Watts into a 4-ohm load at 14.4V supply voltage.
Q: Can TDA7387 be used in home audio systems? A: Yes, TDA7387 can be used in home audio systems as long as the power supply and speaker impedance requirements are met.
Q: How many channels does TDA7387 have? A: TDA7387 has four independent channels, allowing it to drive up to four speakers simultaneously.
Q: What is the recommended power supply voltage for TDA7387? A: The recommended power supply voltage for TDA7387 is typically between 8V and 18V.
Q: Can TDA7387 operate with a single power supply? A: Yes, TDA7387 can operate with a single power supply, but it requires a dual power supply configuration for optimal performance.
Q: Does TDA7387 require any external components for operation? A: Yes, TDA7387 requires external components such as capacitors, resistors, and inductors for proper operation and stability.
Q: What is the input sensitivity of TDA7387? A: The input sensitivity of TDA7387 is typically around 200mV, which means it can accept line-level audio signals.
Q: Can TDA7387 handle low-impedance speakers? A: Yes, TDA7387 can handle speaker loads as low as 2 ohms per channel, making it suitable for a wide range of speaker configurations.
Q: Is TDA7387 protected against short circuits and thermal overload? A: Yes, TDA7387 has built-in protection features like short-circuit protection and thermal overload protection to ensure safe operation.

Please note that the answers provided here are general and may vary depending on specific application requirements and manufacturer specifications.