Products > Integrated Circuits (ICs) > Amplifier ICs > TDA7388

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Manufacturer : STMicroelectronics, Inc
Package/Case : ZIP-25
Product Categories : Special Purpose Audio Amplifiers
Datasheet: TDA7388 Datasheet (PDF)
RoHs Status: Ecopack2
In-stock: 150000


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TDA7388 Product Details

TDA7388 Description

The TDA7388 is an audio power amplifier designed for high-end car radio applications. It belongs to the AB class of amplifiers and is packaged in Flexiwatt 25. This amplifier is based on a fully complementary PNP/NPN configuration, which enables a rail-to-rail output voltage swing without the need for bootstrap capacitors. The minimal number of external components required makes it ideal for creating compact audio systems. 

TDA7388 Manufacture

TDA7388 is manufactured by STMicroelectronics, a well-known global semiconductor company that focuses on developing advanced semiconductor solutions for a wide range of microelectronics applications. The company is recognized for its exceptional expertise in silicon and system technology, bolstered by strong manufacturing capabilities, an extensive intellectual property portfolio, and strategic collaborations with key industry partners. STMicroelectronics has established itself as a pioneer in System-on-Chip (SoC) technology, and its product offerings are instrumental in shaping the ongoing trends of technological convergence.



  • Quad Bridge Amplifier: The TDA7388 contains four separate amplifiers within a single package, making it suitable for applications that require amplification for multiple audio channels, such as a car's four speaker outputs.

  • High Power Output: The IC can deliver a substantial amount of power to drive speakers efficiently, ensuring high-quality and loud audio output.

  • Low Distortion: The TDA7388 is designed to minimize distortion, maintaining the integrity of the amplified audio signal even at high volumes.

  • Wide Supply Voltage Range: Typically, it operates within a wide supply voltage range, such as 9V to 18V, providing versatility for various power supply configurations.

  • Short-Circuit and Thermal Protection: The IC often includes short-circuit and thermal protection mechanisms to protect it from damage due to excessive current or heat.

  • High Efficiency: The TDA7388 is known for its high efficiency, which helps minimize power consumption and heat generation, making it ideal for car audio systems.

  • It can deliver up to 4 x 45 W when connected to a 4 Ω load at maximum output.

  • At a supply voltage of 14.4 V and a frequency of 1 kHz, it can still provide 4 x 26 W into a 4 Ω load with a low distortion level of 10%.

  • It maintains low distortion and output noise, ensuring high audio quality.

  • It includes a standby function, which can help conserve power when the amplifier is not in use.

  • A mute function is also available, allowing for sound control.

  • It has an automute feature triggered by minimal supply voltage detection.

  • This amplifier is designed for simplicity with a low count of external components.

  • The gain is internally fixed at 26 dB.

  • There's no need for external compensation or bootstrap capacitors, streamlining the design process.

TDA7388 Products


  • Car Audio Systems: The TDA7388 is commonly used in car audio systems to power multiple speakers and deliver high-quality sound.

  • Home Audio Amplifiers: It can be employed in home audio amplifiers for amplifying audio signals in stereo systems, home theaters, and multimedia speakers.

  • Multichannel Audio: The TDA7388 is suitable for applications where multiple audio channels are required, such as surround sound systems.

  • Public Address Systems: It can be used in public address systems and amplifiers to provide clear and powerful audio for various venues and events.

  • Portable Audio Devices: Although it's not its primary application, the TDA7388 can find use in portable audio devices that require efficient amplification.

TDA7388 Equivalent Parts

TDA7851F: The TDA7851F is a quad bridge amplifier IC designed for automotive audio applications, and it can be used as an alternative to the TDA7388.

TDA7561: The TDA7561 is another quad bridge amplifier IC that can provide similar functionality to the TDA7388.

TDA7387EP: The TDA7387EP is designed for car radio applications and can serve as an alternative to the TDA7388 in specific automotive audio systems.

TB2941HQ: The TB2941HQ is another quad bridge amplifier IC that can be used for audio amplification. It may also be a suitable replacement for the TDA7388.


What are the protection features in the TDA7388?

The TDA7388 offers protection against over-temperature and over-voltage, safeguarding the amplifier and connected devices.

Can the TDA7377 or TDA7388 be used for home theater systems?

Yes, both amplifiers can be used for home theater systems, but the choice depends on your specific power and sound quality requirements. The TDA7388, with its quad-bridge capability, is more suitable for larger setups. Learn more details about TDA7377 and TDA7388 here.

Technical Parameters

  • Product Name
  • TDA7388
  • Product Type
  • Quad Bridge Car Radio Amplifier IC
  • Manufacturer
  • STMicroelectronics
  • Number of Channels
  • 4
  • Output Power
  • 41W per channel (max)
  • Operating Voltage
  • 9V to 18V
  • Operating Temperature
  • -40°C to +105°C
  • Package / Case
  • Multiwatt-15
  • Packaging
  • Tube

TDA7388 Datasheet

TDA7388 Equivalent Parts

For the TDA7388 component, you may consider these replacement and alternative parts.

Models Manufacturer Package/Case Description
TDA7377 ST/UTC ZIP-15 Audio Amplifiers 2X35W PWR AMPLIFIER

TDA7388 Related Products

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1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that TDA7388 is the original manufacturer or agent of ST?
We have a professional business development department to strictly test and verify the qualifications of ST original manufacturers and agents. All ST suppliers must pass the qualification review before they can publish their TDA7388 devices; we pay more attention to the channels and quality of TDA7388 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of TDA7388 chips? Including ST original factory information, Special Purpose Audio Amplifiers application, TDA7388 pictures?
You can use Jotrin's intelligent search engine, or filter by Automotive Infotainment and Telematics ; Automotive Audio Power Amplifiers ; Automotive Class-AB Audio Power Amplifiers category, or find it through STMicroelectronics, Inc Information page.
Q: Are the ST's TDA7388 price and stock displayed on the platform accurate?
The ST's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for TDA7388, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
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Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of TDA7388?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the TDA7388 we delivered, we will accept the replacement or return of the TDA7388 only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of TDA7388.
(3)The TDA7388 is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
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STMicroelectronics, Inc

ST Microelectronics is a global independent semiconductor company and a leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications, and that designs, develops, manufactures and markets a broad spectrum of products....
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