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Audio Amp Speaker 2-CH Stereo 46W Class-D Automotive 64-Pin LQFP EP

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FDA802SB-VYY General Description

The FDA802SB is a dual bridge class D amplifier, designed in the most advanced BCD technology specially intended for car radio applications.The FDA802SB integrates a high performance D/A converter together with powerful MOSFET outputs in class D, to get an outstanding efficiency compared with the standard class AB.The integrated D/A converter allows to reach outstanding performances (110 dB S/N ratio with 108 dB of dynamic range). Thanks to the high-voltage MOSFET output stages it can operate both under standard car battery (6-18 V) and under boosted power supply (up to 25 V) to reach the highest possible power with integrated solution. The feedback loop includes the output L-C low-pass filter, allowing superior frequency response linearity and lower distortion independently from the inductor and capacitor quality.FDA802SB is fully configurable through I2C bus interface and integrates a complete diagnostics array specially intended for automotive applications. Thanks to the solutions implemented to solve the EMI problems, the device is intended to be used in the standard single DIN car-radio box together with the tuner. Moreover the FDA802SB is able to work with power supply as low as 5.5 V, thus supporting the most recent low voltage ('start-stop') car-makers specification.

STMicroelectronics, Inc Inventory

Key Features

  • AEC-Q100 qualified
  • Integrated 110 dB D/A conversion
  • I2S and TDM digital input (3.3/1.8 V)
  • Input sampling frequency: 44.1 kHz, 48 kHz, 96 kHz and 192 kHz
  • Full I2C bus driving (3.3/1.8 V) with 8 different I2C bus addresses
  • Operating supply range: 5.5 V - 25 V
  • EMI compliance evaluated following normative:
    • CISPR25 Class V
    • ISO 11452 2
  • Low radiation function (LRF)
  • Very low quiescent current
  • Output lowpass filter is included in the feedback for outstanding audio performance
  • Operation under standard car battery with high output power:
    • 2 x 22 W /4 Ω @ 14 V, 1 kHz THD = 1%
    • 2 x 28 W /4 Ω @ 14 V, 1 kHz THD = 10%
    • 2 x 37 W /2 Ω @ 14 V, 1 kHz THD = 1%
    • 2 x 46 W /2 Ω @ 14 V, 1 kHz THD = 10%
  • Possibility to drive 2 Ω loads (up to 18 V)
  • Parallel mode for 1 Ω loads (up to 18 V)
  • I2C bus diagnostics:
    • Short to VCC/GND diagnostic
    • DC load diagnostic
    • AC load diagnostic (working both with internally and externally generated tone)
    • Digital impedance-meter (DIM)
  • Integrated fault protection
  • Input and output offset detector
  • Clipping detector
  • Short circuit and ESD integrated protections
STMicroelectronics, Inc Original Stock
STMicroelectronics, Inc Inventory


Category Integrated Circuits (ICs)LinearAmplifiersAudio Amplifiers Mfr STMicroelectronics
Series Automotive, AEC-Q100 Package Tray
Product Status Active Type Class D
Output Type 1-Channel (Mono) or 2-Channel (Stereo) Max Output Power x Channels @ Load 300W x 1 @ 8Ohm; 150W x 2 @ 4Ohm
Voltage - Supply 6V ~ 18V Features -
Mounting Type Surface Mount Operating Temperature -
Supplier Device Package 64-LQFP-EP (10x10) Package / Case 64-LQFP Exposed Pad
Base Product Number FDA802 Pin Count 65
Package Category Quad Flat Packages Released Date Dec 22, 2022
Last Modified Date Mar 7, 2023 4:10 PM UTC


Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.

Delivery Time

The delivery time is usually within 2-7 days, depending on the logistics provider and the area of delivery.

The following are the estimated delivery times of some logistics service providers.

  • DHL

  • Fedex

  • UPS

  • EMS

  • Registered Air Mail


We accept TT prepayment (bank transfer), paypal, credit cards, Western Union, Money Gram.

Checks and other instruments are not supported to pay for orders and customers are required to pay all possible fees, including sales tax,
customs fees, etc.

  • Wire Transfer

  • Paypal

  • Credit Card

  • Western Union

  • Money Gram


Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.
  • ESD


  • Tape and Reel

    Tape and Reel

  • Cut Tape

    Cut Tape

  • Tube or Tray

    Tube or Tray


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Buying Guide

  • What is the lifespan of FDA802SB-VYY?

    The lifespan of FDA802SB-VYY depends on various factors such as the quality of materials used, operating conditions, and the manufacturer's recommended usage time. The datasheet provided by the manufacturer specifies the expected lifespan of the product.

  • Where can I find the full specification of FDA802SB-VYY?

    You can find it with PDF Datasheet for FDA802SB-VYY on this page. If it is not available, you can contact Avaq at [email protected] to inquire about the Datasheet for this part.

  • How to check the quality of FDA802SB-VYY?

    Avaq has separate quality services with common quality inspection equipment for testing items, you can also fill out a sample form, our team will get in touch with you within 24 HOURS.

  • Can I purchase samples for testing?

    Avaq offers free samples for customers to test. This can often help you determine whether the chip or component meets your needs.

  • Where can I check the delivery after the order is completed?

    Once the order is completed, you will receive an order confirmation email containing a tracking number from AVAQ, then you can track the delivery by yourself.

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