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  • The TDA7850 is a breakthrough MOSFET technology class AB audio power amplifier in Flexiwatt 25 package designed for high power car radio. The fully complementary P-Channel/NChannel 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 TDA7850 integrates a DC offset detector.

    Key Features

    • On board 0.35 A high side driver
    • Low external component count:Internally fixed gain (26 dB)No external compensationNo bootstrap capacitors
    • Protections:Output short circuit to gnd, to Vs, across the loadVery inductive loadsOverrating chip temperature with soft thermal limiterOutput DC offset detectionLoad dump voltageFortuitous open gndReversed batteryESD
    • Mute function
    • ST-BY function
    • 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 @ 14.4V, 1 kHz, 10 %
    • Excellent 2 Ω driving capability
    • MOSFET output power stage
    • Low output noise
    • Automute at min. supply voltage detection
    • Hi-Fi class distortion

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STMicroelectronics - TDA7850

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TDA7850
Active
FLEXIWATT FM2 25 Automotive Ecopack2
TDA7850H
Active
FLEXIWATT 25 HB Automotive Ecopack2

TDA7850

Package:

FLEXIWATT FM2 25

Material Declaration**:

PDF XML

Marketing Status

Active

Package

FLEXIWATT FM2 25

Grade

Automotive

RoHS Compliance Grade

Ecopack2

TDA7850H

Package:

FLEXIWATT 25 HB

Material Declaration**:

PDF

Marketing Status

Active

Package

FLEXIWATT 25 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
TDA7850 Available at 4 distributors

Distributor availability ofTDA7850

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 234 1 Order Now
RS COMPONENTS EUROPE 292 17 Order Now
MOUSER WORLDWIDE 463 1 Order Now
Farnell Element14 EUROPE 256 1 Order Now

Distributor reported inventory date: 2020-11-27

Distributor Name

DIGIKEY

Stock

234

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

292

Min.Order

17

Region

EUROPE Order Now

MOUSER

Stock

463

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

256

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-27

Buy Direct
Active
EAR99 NEC Tube FLEXIWATT FM2 25 -40 105 CHINA 4.8 / 1k
TDA7850H Available at 3 distributors

Distributor availability ofTDA7850H

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 345 1 Order Now
AVNET AMERICA 357 0 Order Now
Farnell Element14 EUROPE 329 1 Order Now

Distributor reported inventory date: 2020-11-27

Distributor Name

DIGIKEY

Stock

345

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

357

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

329

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-27

Buy Direct
Active
EAR99 NEC Tube FLEXIWATT 25 HB -40 105 CHINA 4.8 / 1k

TDA7850

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

4.8 / 1k

Distributor availability ofTDA7850

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 234 1 Order Now
RS COMPONENTS EUROPE 292 17 Order Now
MOUSER WORLDWIDE 463 1 Order Now
Farnell Element14 EUROPE 256 1 Order Now

Distributor reported inventory date: 2020-11-27

Distributor Name

DIGIKEY

Stock

234

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

292

Min.Order

17

Region

EUROPE Order Now

MOUSER

Stock

463

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

256

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-27

ECCN (EU)

NEC

Packing Type

Tube

Package

FLEXIWATT FM2 25

Operating Temperature (°C)

(min)

-40

(max)

105

Budgetary Price (US$)* / Qty

4.8 / 1k

Country of Origin

CHINA

TDA7850H

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

4.8 / 1k

Distributor availability ofTDA7850H

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 345 1 Order Now
AVNET AMERICA 357 0 Order Now
Farnell Element14 EUROPE 329 1 Order Now

Distributor reported inventory date: 2020-11-27

Distributor Name

DIGIKEY

Stock

345

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

357

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

329

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-27

ECCN (EU)

NEC

Packing Type

Tube

Package

FLEXIWATT 25 HB

Operating Temperature (°C)

(min)

-40

(max)

105

Budgetary Price (US$)* / Qty

4.8 / 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