Quad BTP output with HSD, offset detection , stand-by and mute inputs

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  • The TDA7850A is a breakthrough MOSFET technology class AB audio power amplifier in Flexiwatt27 package designed for high power car radio. The fully complementary P-Channel/N-Channel output structure allows a rail to rail output voltage swing which, combined with high output current and minimized saturation losses sets new power references in the car-radio field, with unparalleled distortion performances.

    The TDA7850A integrates a DC offset detector.

    Key Features

    • High output power capability:
      • 4 x 50 W/4 Ω max.
      • 4 x 30 W/4 Ω @ 14.4 V, 1 kHz, 10 %
      • 4 x 80 W/2 Ω max.
      • 4 x 55 W/2 Ω @ 14.4 V, 1 kHz, 10 %
    • MOSFET output power stage
    • Excellent 2 Ω driving capability
    • Hi-fi class distortion
    • Low output noise
    • Standby function
    • 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 0.35 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

Sample & Buy

Part Number
Marketing Status
Quantity
Budgetary Price (US$)*
Package
Packing Type
ECCN (US)
Country of Origin
Order from Distributors
Order from ST
TDA7850A
Active
1000 4.901 FLEXIWATT FM2 27 Tube EAR99 CHINA No availability of distributors reported, please contact our sales office Buy direct
TDA7850AH
Active
1000 4.9 FLEXIWATT 27 HB Tube EAR99 CHINA No availability of distributors reported, please contact our sales office Buy direct

TDA7850A

Marketing Status

Active

Quantity

1000

Unit Price (US$)

4.901*

Unit Price (US$)

4.901

Package

FLEXIWATT FM2 27

Packing Type

Tube

ECCN (US)

EAR99

Country of Origin

CHINA

TDA7850AH

Marketing Status

Active

Quantity

1000

Unit Price (US$)

4.9*

Unit Price (US$)

4.9

Package

FLEXIWATT 27 HB

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
      DS5524
      4 x 50 W MOSFET quad bridge power amplifier
      5.1
      358.48 KB
      PDF
      DS5524

      4 x 50 W MOSFET quad bridge power amplifier

    • Description Version Size Action
      TN1258
      An innovative high power IC surface mount package family: PowerSO-20 & PowerSO-36 Power IC packaging from insertion to surface mounting
      1.0
      1.04 MB
      PDF
      TN1258

      An innovative high power IC surface mount package family: PowerSO-20 & PowerSO-36 Power IC packaging from insertion to surface mounting

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**
TDA7850A
Active
FLEXIWATT FM2 27 Automotive Ecopack2
TDA7850AH
Active
FLEXIWATT 27 HB Automotive Ecopack2

TDA7850A

Package:

FLEXIWATT FM2 27

Material Declaration**:

PDF XML

Marketing Status

Active

Package

FLEXIWATT FM2 27

Grade

Automotive

RoHS Compliance Grade

Ecopack2

TDA7850AH

Package:

FLEXIWATT 27 HB

Material Declaration**:

Marketing Status

Active

Package

FLEXIWATT 27 HB

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.