Grįžti į STMicroelectronics

STMicroelectronics TDA7851A / TDA7851F 4x45W MOSFET Power Amplifiers

STMicroelectronics TDA7851A and TDA7851F 4x45W MOSFET quad bridge power amplifiers are designed for high-power car radio applications. The fully complementary P-Channel/N-Channel output structure of STMicroelectronics TDA7851A and TDA7851F quad bridge power amplifiers allows a rail-to-rail output voltage swing. The TDA7851A and TDA7851Fset new power references in the car-radio field with unparalleled distortion performance.

Features

  • Multipower BCD technology
  • High output power capability:
    • 4x 45W/4Ω max.
    • 4x 28W/4Ω @ 14.4V, 1kHz, 10 %
    • 4x 72W/2Ω max.
  • MOSFET output power stage
  • 2Ω driving capability
  • Protections:
    • Output short circuit to GND, to VS, across the load
    • Very inductive loads
    • Overrating chip temperature with soft thermal limiter
    • Load dump voltage
  • Output DC offset detector
  • Hi-Fi class distortion
  • Low output noise
  • Standby function
  • Mute function
  • Automute at min. supply voltage detection
  • Low external component count:
    • Internally fixed gain (26dB)
    • No external compensation
    • No bootstrap capacitors

Applications

  • High-power car radio

Additional Resources

Block Diagram

Block Diagram - STMicroelectronics TDA7851A / TDA7851F 4x45W MOSFET Power Amplifiers
Paskelbta: 2011-11-15 | Atnaujinta: 2022-03-11