TDA7491HV

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TDA7491HV

+BOM

IC AMP D STEREO 20W POWERSSO36

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Specifications

Attribute Value
Package Tube
ProductStatus Obsolete
Type Class D
OutputType 2-Channel (Stereo)
MaxOutputPowerxChannels@Load 20W x 2 @ 8Ohm
Voltage-Supply 5V ~ 18V
Features Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
MountingType Surface Mount
OperatingTemperature -40°C ~ 85°C (TA)
SupplierDevicePackage PowerSSO-36 EPD

Overview

Description

The TDA7491HV is a dual BTL (Bridge-Tied Load) class-D audio amplifier designed for high efficiency and excellent audio performance. Part of STMicroelectronics' TDA family, it is optimized for driving speakers in various consumer and professional audio applications.
Key features of the TDA7491HV include:
- Operating voltage range from 4.5V to 18V, making it versatile for different power supply configurations.
- Output power capability of up to 20W per channel at 8Ω with excellent sound quality.
- Efficiency greater than 90%, thanks to its class-D architecture, reducing heat generation and power loss.
- Protection features like thermal shutdown, overcurrent and short-circuit protection, ensuring reliability and durability in various environments.
- Differential inputs for improved noise rejection and reduced distortion.
- Compact package options, simplifying integration into space-constrained designs.
These features make the TDA7491HV suitable for applications in home audio systems, portable speakers, and other audio devices requiring high efficiency and robust performance.

Equivalent

The TDA7491HV is a Class D audio amplifier chip. Equivalent products include:
1. Texas Instruments TPA3116D2
2. Texas Instruments TPA3118D2
3. MAX9744 from Maxim Integrated
4. PAM8610 from Diodes Incorporated
These chips offer similar functionalities for driving audio systems with efficient power usage, though specific features and performance can vary. Always verify pin compatibility and specifications when considering alternatives.

Features

The TDA7491HV is a dual BTL class-D audio amplifier designed for high-quality sound reproduction in a range of audio applications. Key features include:
1. Output Power: It can deliver up to 20W per channel into 8-ohm loads, making it suitable for medium-power speaker systems.
2. High Efficiency: Thanks to its class-D topology, it operates with high efficiency, reducing heat dissipation and power consumption.
3. Wide Voltage Range: It supports a wide supply voltage range from 10V to 36V, providing flexibility for various power supply designs.
4. Low Distortion: The amplifier boasts low Total Harmonic Distortion (THD), ensuring clear and crisp audio output.
5. Integrated Protection: It includes built-in protection mechanisms against short circuits, thermal overload, and over-voltage, enhancing reliability.
6. Filterless Operation: The TDA7491HV can operate without the need for external output filters, simplifying circuit design.
7. Compact Package: It is available in a compact package, making it suitable for space-constrained applications.
These features make the TDA7491HV an attractive choice for consumer electronics, portable speaker systems, and other audio applications requiring efficient, high-quality sound amplification.

Pinout

The TDA7491HV is a dual BTL (Bridge-Tied Load) class-D audio amplifier IC designed for high-efficiency audio applications. It typically comes in a PowerSSO36 package, which has 36 pins.
Key functions and features of the TDA7491HV include:
1. High Output Power: Capable of delivering up to 20W + 20W continuous output power into a 4-ohm load at 25V.
2. Wide Supply Voltage Range: Operates from 4.5V to 27V.
3. Efficiency: High efficiency due to class-D operation, reducing the need for large heat sinks.
4. Low Distortion: Provides low Total Harmonic Distortion (THD).
5. Protection Features: Includes overcurrent, overtemperature, and short-circuit protection.
6. Mute/Standby Function: Pins available for muting and standby operation to reduce power consumption.
7. Differential Inputs: Provides differential input pins to improve noise immunity.
These features make the TDA7491HV suitable for applications in audio systems that require efficient power handling and compact package size. For detailed pin functions, referring to the specific datasheet of the TDA7491HV is recommended.

Manufacturer

The TDA7491HV is manufactured by STMicroelectronics. STMicroelectronics is a multinational electronics and semiconductor manufacturer headquartered in Geneva, Switzerland. It is one of the largest semiconductor companies in the world, focusing on developing and producing a wide range of semiconductor devices, including microcontrollers, sensors, power devices, and integrated circuits like the TDA7491HV. The company serves various industries, including automotive, industrial, personal electronics, and computer peripherals.

Application

The TDA7491HV is a high-efficiency class D audio amplifier designed for various audio applications. Its main application areas include home audio systems, such as stereo and multi-channel speakers, providing clear and powerful sound output. It's also used in portable audio systems due to its compact size and efficient power consumption. Additionally, the TDA7491HV is suitable for soundbars, docking stations, and wireless speaker systems, where high-quality audio performance is essential. The device's ability to drive high power output makes it ideal for use in professional audio equipment and public address systems. Its efficiency and thermal management benefits also make it a good choice for automotive audio applications.

Package

The TDA7491HV is typically available in a PowerSSO36 (Power Shrink Small Outline 36 pins) package. This package type is designed to ensure efficient heat dissipation and compactness, suitable for high-power audio amplifier applications.

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