Flat $5.99 shipping rate worldwide throughout May - no code needed! Start your design today. Flat $5.99 shipping rate worldwide throughout May - no code needed! Start your design today. Flat $5.99 shipping rate worldwide throughout May - no code needed! Start your design today. Flat $5.99 shipping rate worldwide throughout May - no code needed! Start your design today. Flat $5.99 shipping rate worldwide throughout May - no code needed! Start your design today.

TDA7851A

Active

4 x 48 W MOSFET quad bridge power amplifier

Quantity $ per Unit Savings
1 - 9$6.620%
10 - 24$5.9810%
25 - 99$5.6914%
100 - 249$4.9525%
250 - 356$4.7229%
357 - 500$4.3035%
Contact Sales
In stock
$6.62
Parameter NameParameter Value
Operating RangeAutomotive
Supply Voltage Min Volt8.0
Supply Voltage Max Volt18.0
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius105.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTube
ROHS Compliance GradeEcopack2
GradeAutomotive
Package NameFLEXIWATT FM2 27

The TDA7851A is a breakthrough MOSFET technology class AB audio power amplifier, designed for high-power car radio.


The fully complementary P-Channel/N-Channel output structure allows a rail-to-rail output voltage swing. This, combined with high output current and minimized saturation losses, sets new power references in the car-radio field, with unparalleled distortion performance.

Key features
  • Multipower BCD technology
  • High output power capability:
    • 4 x 48 W/4 Ω Max.
    • 4 x 28 W/4 Ω @ 14.4 V, 1 kHz, 10 %
    • 4 x 72 W/2 Ω Max.
  • 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
  • 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