Friday, September 5, 2014

TDA8551 Audio Ampllifier 1 x 1 W

TDA8551general description:

The TDA8551; TDA8551T is a one channel 1 W  Bridge-Tied Load (BTL) audio power amplifier capable of  delivering 1 W output power to an 8 Ω load at THD = 10%  using a 5 V power supply. The circuit contains a BTL  power amplifier, a digital volume control and standby/mute  logic. The TDA8551T comes in an 8 pin SO package and the TDA8551 in a 8 pin DIP package.

TDA8551 features:


  • One pin digital volume control
  • Volume setting with UP/DOWN pulses
  • Flexibility in use
  • Few external components
  • Low saturation voltage of output stage
  • Standby mode controlled by CMOS compatible levels
  • Low standby current
  • No switch-on/switch-off plops
  • High supply voltage ripple rejection
  • Protected against electrostatic discharge
  • Outputs short circuit safe to ground, VP and across the load
  • Thermally protected.

TDA8551aplications:

  • Portable consumer products
  • Personal computers
  • Telephony

TDA8551circuit diagram:

TDA8551pcb layout:



No comments:

Post a Comment

Note: Only a member of this blog may post a comment.