Differential input, single BTL output power amplifier with stand-by and clip detection

Download datasheet

Order from our eStore and our distributors

Buy now
Overview
Tools & Software
Resources
Solutions
Quality & Reliability
Sales Briefcase
eDesignSuite
Get Started
Sample & Buy
Partner products
  • The TDA7391 is a bridge class AB audio power amplifier specially intended for car radio high power applications.

    The high power capability together with the possibility to operate either in differential input mode or single ended input mode makes it suitable for boosters and high end car radio equipments. The exclusive fully complementary output stage and the internal fixed gain configuration drop the external component count.
    The on board clipping detector allows easy implementation of gain compression systems.

    Key Features

    • High power capability:
      • 40 W/4 Ω max
      • 35 W/4 Ω EIAJ
      • 45 W/3.2 Ω max
      • 40 W/3.2 Ω EIAJ
      • 32 W/3.2 Ω @ VS= 14.4 V, f = 1 kHz, d = 10 %
      • 26 W/4 Ω @ VS= 14.4 V, f = 1 kHz, d = 10 %
    • DIfferential inputs (either single ended or differential input signal are accepted)
    • Minimum external component count:
      • No bootstrap capacitors
      • No Boucherot cells
      • Internally fixed gain (30 dB)
      • No SVR Capacitor
    • Standby function (CMOS compatible)
    • Programmable turn-on/off delay
    • No audible pop during mute and standby operations
    • Protections:
      • Short circuit (to GND, to VS, across the load)
      • Very inductive loads
      • Chip over temperature
      • Load dump
      • Open GND
      • ESD

Sample & Buy

Part Number
Marketing Status
Quantity
Budgetary Price (US$)*
Package
Packing Type
ECCN (US)
Country of Origin
Order from Distributors
Order from ST
TDA7391
Active
1000 2.1 MW 11L Tube EAR99 MOROCCO Check Availability

Distributor availability ofTDA7391

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1604 1 Order Now
RS COMPONENTS EUROPE 795 1 Order Now
ARROW EUROPE 215 0 Order Now
Newark Element14 AMERICA 11 0 Order Now
MOUSER WORLDWIDE 847 1 Order Now
Farnell Element14 EUROPE 3 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

1604

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

795

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

215

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

11

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

847

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Buy now

TDA7391

Marketing Status

Active

Quantity

1000

Unit Price (US$)

2.1*

Distributor availability ofTDA7391

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1604 1 Order Now
RS COMPONENTS EUROPE 795 1 Order Now
ARROW EUROPE 215 0 Order Now
Newark Element14 AMERICA 11 0 Order Now
MOUSER WORLDWIDE 847 1 Order Now
Farnell Element14 EUROPE 3 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

1604

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

795

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

215

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

11

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

847

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Unit Price (US$)

2.1

Package

MW 11L

Packing Type

Tube

ECCN (US)

EAR99

Country of Origin

MOROCCO

(*) 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

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS0145
      35 W bridge car radio amplifier
      5.1
      417.32 KB
      PDF
      DS0145

      35 W bridge car radio amplifier

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**
TDA7391
Active
MW 11L Automotive Ecopack2

TDA7391

Package:

MW 11L

Material Declaration**:

Marketing Status

Active

Package

MW 11L

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.