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  • The TDA7491HV is a dual BTL class-D audio amplifier with single power supply designed for LCD TVs and monitors.

    Thanks to the high efficiency and exposed-pad-up (EPU) and down (EPD) packages, no separate heatsink is required.
    The TDA7491HV is pin-to-pin compatible with the TDA7491P and TDA7491LP.

    Key Features

    • 20 W + 20 W continuous output power:
      • RL = 8 Ω, THD = 10% at VCC = 18 V
    • Wide-range single-supply operation (5 - 18 V)
    • High efficiency (η = 90%)
    • Four selectable, fixed gain settings of nominally 20 dB, 26 dB, 30 dB and 32 dB
    • Differential input minimize common-mode noise
    • No ‘pop’ at turn-on/off
    • Standby and mute features
    • Short-circuit protection
    • Thermal overload protection
    • External synchronisation

Circuit Diagram

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Recommended for you

Related Applications

Audio and Video

Ecosystems

    • Part Number

      Audio Amp 2 click is a highly efficient class D audio amplifier, using the TDA7491, a dual BTL class-D audio amplifier IC.

Evaluation Tools

    • Part Number

      20 W + 20 W dual BTL class-D audio amplifier demonstration board based on the TDA7491HV

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS5624
      20 W + 20 W dual BTL class-D audio amplifier
      9.0
      1.73 MB
      PDF
      DS5624

      20 W + 20 W dual BTL class-D audio amplifier

    • Description Version Size Action
      AN3412
      10 W + 10 W dual BTL class-D audio amplifier demonstration board based on the TDA7491P
      1.1
      1,017.67 KB
      PDF
      AN4170
      20 W + 20 W dual BTL class-D audio amplifier demonstration board based on the TDA7491HV
      1.0
      1.1 MB
      PDF
      AN4171
      25 W mono BTL class-D audio amplifier demonstration board based on the TDA7491MV
      1.0
      792.27 KB
      PDF
      AN3956
      5 W + 5 W dual BTL class-D audio amplifier demonstration board based on the TDA7491LP
      1.0
      1.45 MB
      PDF
      AN3385
      50 W + 50 W dual BTL class-D audio amplifier demonstration board based on the TDA7492
      1.0
      821.8 KB
      PDF
      AN4015
      Dual-BTL class-D audio amplifier demonstration board based on the TDA7498E
      1.0
      2.29 MB
      PDF
      AN3412

      10 W + 10 W dual BTL class-D audio amplifier demonstration board based on the TDA7491P

      AN4170

      20 W + 20 W dual BTL class-D audio amplifier demonstration board based on the TDA7491HV

      AN4171

      25 W mono BTL class-D audio amplifier demonstration board based on the TDA7491MV

      AN3956

      5 W + 5 W dual BTL class-D audio amplifier demonstration board based on the TDA7491LP

      AN3385

      50 W + 50 W dual BTL class-D audio amplifier demonstration board based on the TDA7492

      AN4015

      Dual-BTL class-D audio amplifier demonstration board based on the TDA7498E

    • Description Version Size Action
      AN4170
      20 W + 20 W dual BTL class-D audio amplifier demonstration board based on the TDA7491HV
      1.0
      1.1 MB
      PDF
      AN4170

      20 W + 20 W dual BTL class-D audio amplifier demonstration board based on the TDA7491HV

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TDA7491HV13TR
Active
PowerSSO 36 Industrial Ecopack2
TDA7491HVU13TR
Active
PowerSSO 36 Industrial Ecopack2

TDA7491HV13TR

Package:

PowerSSO 36

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSSO 36

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TDA7491HVU13TR

Package:

PowerSSO 36

Material Declaration**:

Marketing Status

Active

Package

PowerSSO 36

Grade

Industrial

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

Part Number
Order from Distributors
Order from ST
Package
Packing Type
Temperature (°C) Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
min
max
TDA7491HVU13TR Available at 4 distributors

Distributor availability ofTDA7491HVU13TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 975 1 Order Now
AVNET AMERICA 1000 0 Order Now
FUTURE WORLDWIDE 1000 1000 Order Now
MOUSER WORLDWIDE 978 1 Order Now

Distributor reported inventory date: 2020-07-02

Distributor Name

DIGIKEY

Stock

975

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

1000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

1000

Min.Order

1000

Region

WORLDWIDE Order Now

MOUSER

Stock

978

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-02

Get sample PowerSSO 36 Tape And Reel 0 70
Active
EAR99 MALAYSIA 1.0617 / 1k
TDA7491HV13TR Available at 5 distributors

Distributor availability ofTDA7491HV13TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 535 1 Order Now
ARROW EUROPE 1000 0 Order Now
P&S ASIA/PACIFIC 22 1 Order Now
MOUSER WORLDWIDE 505 1 Order Now
Farnell Element14 EUROPE 1061 1 Order Now

Distributor reported inventory date: 2020-07-02

Distributor Name

DIGIKEY

Stock

535

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

1000

Min.Order

0

Region

EUROPE Order Now

P&S

Stock

22

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

505

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1061

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-02

Get sample PowerSSO 36 Tape And Reel 0 70
Active
EAR99 MALAYSIA 1.0617 / 1k

TDA7491HVU13TR

Package

PowerSSO 36

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

1.0617 / 1k

Distributor availability ofTDA7491HVU13TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 975 1 Order Now
AVNET AMERICA 1000 0 Order Now
FUTURE WORLDWIDE 1000 1000 Order Now
MOUSER WORLDWIDE 978 1 Order Now

Distributor reported inventory date: 2020-07-02

Distributor Name

DIGIKEY

Stock

975

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

1000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

1000

Min.Order

1000

Region

WORLDWIDE Order Now

MOUSER

Stock

978

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-07-02

Operating Temperature (°C)

(min)

0

(max)

70

Marketing Status

Active

Budgetary Price (US$)* / Qty

1.0617 / 1k

ECCN (US)

EAR99

Country of Origin

MALAYSIA

TDA7491HV13TR

Package

PowerSSO 36

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

1.0617 / 1k

Distributor availability ofTDA7491HV13TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 535 1 Order Now
ARROW EUROPE 1000 0 Order Now
P&S ASIA/PACIFIC 22 1 Order Now
MOUSER WORLDWIDE 505 1 Order Now
Farnell Element14 EUROPE 1061 1 Order Now

Distributor reported inventory date: 2020-07-02

Distributor Name

DIGIKEY

Stock

535

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

1000

Min.Order

0

Region

EUROPE Order Now

P&S

Stock

22

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

505

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1061

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-02

Operating Temperature (°C)

(min)

0

(max)

70

Marketing Status

Active

Budgetary Price (US$)* / Qty

1.0617 / 1k

ECCN (US)

EAR99

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