Ponoko

Dual/Quad Power Amplifier - STA540

Cost: $2.95 each

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Description: The STA540 from STMicro is a 4-channel, class AB audio amplifier designed for high quality sound applications. The four independent channels makes this amplifier a great choice for a number of projects, with needs ranging from four speakers stereo (F/R) to two-speaker bridge solutions. The chip accepts a voltage supply ranging from 8 to 22VDC and has very high output power capability.

This chip comes in a staggered-lead Multiwatt-15 package. While our breakout board for the L298N isn't designed for it specifically, it will breakout out all pins of the STA540 to a more standard single row of 0.1" pitch headers. Also, keep an eye out for some upcoming amplifier products based on this chip!

It works great with the 6400BG Heatsink!

Features:

  • High output power capability
  • Standby function (CMOS compatible)
  • Minimum external components count:
    • no bootstrap capacitors
    • no Boucherot cells
    • internally fixed gain 20 dB
  • No audible pop during standby operations
  • Diagnostic facilities:
    • clip detector
    • output to GND short-circuit detector
    • output to VS short-circuit detector
    • soft short-circuit check at turn-on
    • thermal shutdown warning
  • Output AC/DC short circuit protection
  • Soft short-circuit check at turn-on
  • Thermal cutoff/limiter to prevent chip from overheating

Documents:

SKU: COM-09557


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