Low voltage operation, high sound quality BTL output power amplifier with excellent GSM noise immunity, clip and offset detection

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  • The STPA003 is a MOSFET class AB audio power amplifier, designed for high-power car radio. In addition to the outstanding output current capability and distortion performance, the STPA003 is extremely robust against several kinds of fortuitous misconnection.

    It is compliant to the most recent OEM specifications for low voltage operation (the so called 'start-stop' battery profile during engine stop).
    It includes a DC offset detector and, in Flexiwatt27 package, a high side driver or a clipping detector.

    Key Features

    • High output power capability:
      • 4 x 52 W/4 Ω max.
      • 4 x 30 W/4 Ω @ 14.4 V, 1 kHz, 10 %
      • 4 x 85 W/2 Ω max.
      • 4 x 55 W/2 Ω @ 14.4V, 1 kHz, 10 %
    • MOSFET output power stage
    • Capable to operate in low voltage conditions (e.g.: “Start - Stop”)
    • Excellent GSM noise immunity
    • Excellent 2 Ω driving capability
    • Hi-Fi class distortion
    • Low output noise
    • Standby function and mute function
    • Automute at min. supply voltage detection
    • Low external component count:
      • Internally fixed gain (26 dB)
      • No external compensation
      • No bootstrap capacitors
    • On board 0.4 A high side driver
    • Protections:
      • Output short circuit to GND, to Vs, across the load
      • Very inductive loads
      • Overrating chip temperature with soft thermal limiter
      • Output DC offset detection
      • Load dump voltage
      • Fortuitous open GND
      • Reversed battery
      • ESD

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Part Number
Marketing Status
Quantity
Budgetary Price (US$)*
Package
Packing Type
ECCN (US)
Country of Origin
Order from Distributors
Order from ST
STPA003OD-4WX
Active
1000 6.3 FLEXIWATT FM2 25 Tube EAR99 CHINA Check Availability

Distributor availability ofSTPA003OD-4WX

Distributor Name
Region Stock Min. Order Third party link
AVNET AMERICA 357 0 Order Now

Distributor reported inventory date: 2019-05-20

Distributor Name

AVNET

Stock

357

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2019-05-20

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STPA003HSD-48X
Active
1000 6.7 FLEXIWATT FM2 27 Tube EAR99 CHINA No availability of distributors reported, please contact our sales office
STPA003CD-48X
Active
1000 6.7 FLEXIWATT FM2 27 Tube EAR99 CHINA No availability of distributors reported, please contact our sales office

STPA003OD-4WX

Marketing Status

Active

Quantity

1000

Unit Price (US$)

6.3*

Distributor availability ofSTPA003OD-4WX

Distributor Name
Region Stock Min. Order Third party link
AVNET AMERICA 357 0 Order Now

Distributor reported inventory date: 2019-05-20

Distributor Name

AVNET

Stock

357

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2019-05-20

Unit Price (US$)

6.3

Package

FLEXIWATT FM2 25

Packing Type

Tube

ECCN (US)

EAR99

Country of Origin

CHINA

STPA003HSD-48X

Marketing Status

Active

Quantity

1000

Unit Price (US$)

6.7*

Unit Price (US$)

6.7

Package

FLEXIWATT FM2 27

Packing Type

Tube

ECCN (US)

EAR99

Country of Origin

CHINA

STPA003CD-48X

Marketing Status

Active

Quantity

1000

Unit Price (US$)

6.7*

Unit Price (US$)

6.7

Package

FLEXIWATT FM2 27

Packing Type

Tube

ECCN (US)

EAR99

Country of Origin

CHINA

(*) 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

Evaluation Tools

    • Part Number

      EVAL-TDA785x evaluation board for STPA001, STPA003, STPA008, TDA7851A, TDA7850A, and TDA7388A

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS10473
      4 x 52 W quad bridge power amplifier with high side driver and low voltage operation
      1.0
      567.65 KB
      PDF
      DS10473

      4 x 52 W quad bridge power amplifier with high side driver and low voltage operation

Publications and Collaterals

    • Description Version Size Action
      Intelligent analog power amplifiers 1.0
      715.73 KB
      PDF

      Intelligent analog power amplifiers

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

      Power amplifiers and voltage regulators

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STPA003CD-48X
Active
FLEXIWATT FM2 27 Automotive Ecopack2
STPA003HSD-48X
Active
FLEXIWATT FM2 27 Automotive Ecopack2
STPA003OD-4WX
Active
FLEXIWATT FM2 25 Automotive Ecopack2

STPA003CD-48X

Package:

FLEXIWATT FM2 27

Material Declaration**:

PDF XML

Marketing Status

Active

Package

FLEXIWATT FM2 27

Grade

Automotive

RoHS Compliance Grade

Ecopack2

STPA003HSD-48X

Package:

FLEXIWATT FM2 27

Material Declaration**:

Marketing Status

Active

Package

FLEXIWATT FM2 27

Grade

Automotive

RoHS Compliance Grade

Ecopack2

STPA003OD-4WX

Package:

FLEXIWATT FM2 25

Material Declaration**:

PDF XML

Marketing Status

Active

Package

FLEXIWATT FM2 25

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.