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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

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    • Part number
      Status
      Description
      Type
      Supplier

      EVAL-TDA785X

      Active

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

      Automotive IC Eval Boards ST
      EVAL-TDA785X

      Description:

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

CAD/EDA Symbols, Footprints and Models

Quality and Reliability

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
TDA7850A Available at 3 distributors

Distributor availability ofTDA7850A

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 708 1 Order Now
ARROW EUROPE 262 0 Order Now
MOUSER WORLDWIDE 408 1 Order Now

Distributor reported inventory date: 2020-10-23

Distributor Name

DIGIKEY

Stock

708

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

262

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

408

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-23

Buy Direct
Active
EAR99 NEC Tube FLEXIWATT FM2 27 -40 105 CHINA 4.9 / 1k
TDA7850AH No availability of distributors reported, please contact our sales office Buy Direct
Active
EAR99 NEC Tube FLEXIWATT 27 HB -40 105 CHINA 4.9 / 1k

TDA7850A

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

4.9 / 1k

Distributor availability ofTDA7850A

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 708 1 Order Now
ARROW EUROPE 262 0 Order Now
MOUSER WORLDWIDE 408 1 Order Now

Distributor reported inventory date: 2020-10-23

Distributor Name

DIGIKEY

Stock

708

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

262

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

408

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-23

ECCN (EU)

NEC

Packing Type

Tube

Package

FLEXIWATT FM2 27

Operating Temperature (°C)

(min)

-40

(max)

105

Budgetary Price (US$)* / Qty

4.9 / 1k

Country of Origin

CHINA

TDA7850AH

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

4.9 / 1k

ECCN (EU)

NEC

Packing Type

Tube

Package

FLEXIWATT 27 HB

Operating Temperature (°C)

(min)

-40

(max)

105

Budgetary Price (US$)* / Qty

4.9 / 1k

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