Dual/Quad Power Amplifier - STA540

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DualQuad Power Amplifier STA540.jpg

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


Availability

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NOTE: All information contained within this article is pure opinion. Although this article is intended to help people, it may contain faulty or misleading information. This article is not to be considered professional opinion or advice, and is in no way a replacement for reading all safety/instructional documentation. Always remember to protect yourself when handling/using hazardous materials, as well as test new techniques before using them on projects/work intended to be handed in or used.

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