FDA903D

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1 x 45 W class D digital input automotive power amplifier with load current monitoring, wide voltage operation range for car audio and telematic - slug down version

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  • The FDA903D is a single bridge class D amplifier, designed in the most advanced BCD technology, intended for any automotive audio application (car radio, telematics and e-call, noise and tone generators, etc).

    The FDA903D integrates a high performance D/A converter together with powerful MOSFET outputs in class D, so it is very compact and powerful, moreover reaches outstanding efficiency performances (90%).
    It has a very wide operating range: it can be operated both with standard car battery levels (5.5-18 V operating, compatible to load dump pulse) and with external step-down generated voltages or emergency battery (since it is compatible to minimum 3.3 V operative).
    The feedback loop is including the output L-C low-pass filter, allowing superior frequency response linearity and lower distortion.
    FDA903D is configurable through I2C bus interface and is integrating a complete diagnostics array specially intended for automotive applications including innovative open load and DC offset detection in play mode.
    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 FDA903D features a configurable power limiting function, and can be optionally operated under no I2C mode ('legacy mode').

    Key Features

    • AEC-Q100 qualified
    • Integrated 108 dB D/A conversion
    • I2S and TDM digital input (4/8/16CH TDM)
    • Input sampling frequency: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz
    • Full I2C bus driving (3.3/1.8 V)
    • CISPR 25 - Class V (Fourth edition)
    • Very low quiescent current
    • Output lowpass filter included in the feedback allowing outstanding audio performances
    • Wide operating supply range from 3.3 to 18 V, suitable for car radio, telematics and e-call
    • MOSFET power outputs allowing high output power capability
      • 1 x 25 W /4 Ω @ 14.4 V, 1 kHz THD = 1%
      • 1 x 30 W /4 Ω @ 14.4 V, 1 kHz THD = 10%
    • 2 Ω loads driving
    • Power limiting function (configurable through I2C)
    • I2C bus diagnostics:
      • Short to VCC/GND
      • Short load and open load detection (also in play mode)
      • Four thermal warnings
    • DC offset detector (also in play) and 'hot spot' detection
    • Clipping detector
    • Integrated thermal protection
    • Legacy mode ('no I2C' mode), 4 configurable settings
    • Short circuit and ESD integrated protections
    • Package: PowerSSO-36 exposed pad down

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Evaluation Tools

    • Part Number

      EVAL-FDA903D evaluation board for FDA903D

    • Part Number

      Class D automotive audio amplifier board with advanced diagnostics

      Connector board for MCU and class D audio amplifier

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS12452
      1 x 45 W class D digital input automotive power amplifier with ILoad current monitoring, wide voltage operation range for car audio and telematic
      2.0
      1.36 MB
      PDF
      DS12452

      1 x 45 W class D digital input automotive power amplifier with ILoad current monitoring, wide voltage operation range for car audio and telematic

    • Description Version Size Action
      UM2719
      AVAS architecture based on AutoDevKit
      1.0
      3.5 MB
      PDF
      UM2719

      AVAS architecture based on AutoDevKit

Publications and Collaterals

    • Description Version Size Action
      FDA Family – Full digital audio amplifiers for car infotainment systems 1.0
      911.83 KB
      PDF

      FDA Family – Full digital audio amplifiers for car infotainment systems

    • Description Version Size Action
      Power amplifiers and voltage regulators
      750.29 KB
      PDF

      Power amplifiers and voltage regulators

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
FDA903D-EHT
Active
PowerSSO 36 Automotive Ecopack2
FDA903D-EHX
Active
PowerSSO 36 Automotive Ecopack2

FDA903D-EHT

Package:

PowerSSO 36

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSSO 36

Grade

Automotive

RoHS Compliance Grade

Ecopack2

FDA903D-EHX

Package:

PowerSSO 36

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSSO 36

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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Temperature (°C) Country of Origin
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FDA903D-EHX Available at 2 distributors

Distributor availability ofFDA903D-EHX

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 55 1 Order Now
Farnell Element14 EUROPE 326 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

MOUSER

Stock

55

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

326

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

Buy now
Active
EAR99 NEC Tube PowerSSO 36 -40 125 MALAYSIA 2.8 / 1k
FDA903D-EHT Available at 1 distributors

Distributor availability ofFDA903D-EHT

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 36 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

MOUSER

Stock

36

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-02

Buy now
Active
EAR99 NEC Tape And Reel PowerSSO 36 -40 125 MALAYSIA 2.8 / 1k

FDA903D-EHX

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

2.8 / 1k

Distributor availability ofFDA903D-EHX

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 55 1 Order Now
Farnell Element14 EUROPE 326 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

MOUSER

Stock

55

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

326

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

ECCN (EU)

NEC

Packing Type

Tube

Package

PowerSSO 36

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

2.8 / 1k

Country of Origin

MALAYSIA

FDA903D-EHT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

2.8 / 1k

Distributor availability ofFDA903D-EHT

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 36 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

MOUSER

Stock

36

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-02

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

PowerSSO 36

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

2.8 / 1k

Country of Origin

MALAYSIA

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