FDA802A

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2x150 W/1x300 W class D digital input automotive power amplifier with diagnostics features and low voltage

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Product overview

Description

The FDA802A is a dual bridge class D amplifier, designed in the most advanced BCD technology specially intended for car radio applications.

The FDA802A 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 (115 dB S/N ratio with 110 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 50 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.

FDA802A 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 FDA802A 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.

  • All 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, 192 kHz
    • Full I2C bus driving (3.3/1.8 V) with 8 different I2C bus addresses
    • EMI control for FM/AM compatibility
    • EMI compliance evaluated following normative CISPR25 (class V)
    • Low radiation function (LRF)
    • Very low quiescent current
    • Output low-pass filter included in the feedback allowing outstanding audio performances
    • Wide operating supply range: target 5.5 V-50 V
    • Supply voltage monitoring on I2C
    • MOSFET power outputs allowing high output power capability under step-up voltage:
      • 2x120 W /4 Ω at 35 V, 1 kHz THD = 1%(2x150 W /4 Ω at 35 V, 1 kHz THD = 10%)
      • 2x140 W /8 Ω at 50 V, 1 kHz THD = 1%(2x180 W /8 Ω at 50 V, 1 kHz THD = 10%)
      • 2x270 W /8 Ω at 50 V max output power
    • Operation under standard car battery with high output power:
      • 2x22 W /4 Ω at 14 V, 1 kHz THD = 1%(2x28 W /4 Ω at 14 V, 1 kHz THD = 10%)
      • 2x37 W /2 Ω at 14 V, 1 kHz THD = 1%(2x46 W /2 Ω at 14 V, 1 kHz THD = 10%)
    • Possibility to drive 2 Ω loads:
      • up to 18 V in normal mode
      • up to 35 V in parallel mode
    • Independent channel operation
    • I2C bus diagnostics:
      • Short to VCC/GND diagnostic (including soft shorts up to 1 kΩ)
      • DC load diagnostic
      • AC load diagnostic (working both with internally generated and externally generated tone)
    • Integrated fault protection
    • Input and output offset detector
    • Clipping detector
    • Legacy mode ('no I2C' mode)
    • Short circuit and ESD integrated protections
    • Package: LQFP64 exposed pad up

EDA Symbols, Footprints and 3D Models

STMicroelectronics - FDA802A

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
FDA802A-VYT
Active
LQFP Automotive Ecopack2
FDA802A-VYY
Active
LQFP Automotive Ecopack2

FDA802A-VYT

Package:

LQFP

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP

Grade

Automotive

RoHS Compliance Grade

Ecopack2

FDA802A-VYY

Package:

LQFP

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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FDA802A-VYT Available at distributors

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EAR99 NEC Tape and Reel LQFP -40 105 MALAYSIA
FDA802A-VYY Available at distributors

Distributor availability of FDA802A-VYY

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tray LQFP -40 105 MALAYSIA

FDA802A-VYT Active

Package:
LQFP
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

FDA802A-VYT

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

105

Country of Origin:

MALAYSIA

FDA802A-VYY Active

Package:
LQFP
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

FDA802A-VYY

ECCN (EU):

NEC

Packing Type:

Tray

Operating Temperature (°C)

Min:

-40

Max:

105

Country of Origin:

MALAYSIA

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors