FDA901

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4 x 50 W class-D digital input power amplifier with load current monitoring and low voltage operation

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Product overview

Description

FDA901 is a new BCD technology Quad Bridge class D amplifier, specially intended for car radio automotive applications.

Thanks to the technology used, it is possible to integrate a high performance D/A converter together with powerful MOSFET outputs in class D, to get an outstanding efficiency compared to 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). 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.

FDA901 is fully configurable through I2C bus, moreover it includes not only the most complete load diagnostic matrix but also a unique real time load current acquisition on I2C and I2S data lines, enabling sophisticated speaker monitoring functions.

Thanks to the solutions implemented to contain EMI emissions, the device is intended to be used in the standard single DIN car-radio box together with the tuner.

Moreover the FDA901 is able to work with power supply as low as 6 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 and 192 kHz
    • Class-D channels with 93% efficiency
    • CISPR25 - Class V (Fourth Edition)
    • Low radiation function (LRF)
    • Idle tones free DAC
    • Output lowpass filter included in the feedback allowing superior audio performance
    • High output power capability
      • 28 W/4 Ω 10% THD, Vd = 14.4 V
      • Max. output power: 4 x 50 W/4 Ω @ 15.2 V, 1 kHz
    • Full I2C bus driving (3.3/1.8 V):
      • Channel independent Eco-Mode
      • Channel independent soft play/mute
      • I2C bus diagnostics, including DC and AC load detection and load value recognition
    • Integrated fault protection
    • Input and output offset detector
    • Clipping detector
    • Real time load current monitoring (on I2C and TDM data lines)
    • ESD protection
    • 6 V operation ("Start - Stop" engines compatibility)
    • 2 and 1 Ω load driving capability

EDA Symbols, Footprints and 3D Models

STMicroelectronics - FDA901

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
FDA901-VYT
Active
LQFP Automotive Ecopack2
FDA901-VYY
Active
LQFP Automotive Ecopack2

FDA901-VYT

Package:

LQFP

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP

Grade

Automotive

RoHS Compliance Grade

Ecopack2

FDA901-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.

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Distributor availability of FDA901-VYY

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FDA901-VYT Active

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ECCN (EU):

Part Number:

FDA901-VYT

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FDA901-VYY Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

FDA901-VYY

Operating Temperature (°C)

Min:

Max:

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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