STA550 amplifier | Electronic Schematic Diagram https://electronicscheme.net Schematic Diagram & PCB Design Fri, 28 Nov 2014 00:44:10 +0000 en-US hourly 1 https://i0.wp.com/electronicscheme.net/wp-content/uploads/2017/05/cropped-transparent_text_effect.png?fit=32%2C32&ssl=1 STA550 amplifier | Electronic Schematic Diagram https://electronicscheme.net 32 32 129969089 2 x 70W Power Stereo Amplifier based on IC STA550 https://electronicscheme.net/2x70w-power-stereo-amplifier-based-on-ic-sta550/?utm_source=rss&utm_medium=rss&utm_campaign=2x70w-power-stereo-amplifier-based-on-ic-sta550 https://electronicscheme.net/2x70w-power-stereo-amplifier-based-on-ic-sta550/#respond Wed, 23 Jun 2010 16:07:41 +0000 http://electronicscheme.net/?p=466 Here’s the circuit diagram of a 70W stereo power amplifier which built using single power IC STA550. The circuit is simple and require little additional […]

The post 2 x 70W Power Stereo Amplifier based on IC STA550 first appeared on Electronic Schematic Diagram.]]> Here’s the circuit diagram of a 70W stereo power amplifier which built using single power IC STA550. The circuit is simple and require little additional electronic components to support the work of IC STA550.

2x70W Power Stereo Amplifier based on IC STA550

This power stereo amplifier works with dual polarity / symmetrical power supply. Since based to the datasheet, the negative supply range is only -22V max, then you may use +/- 20V up to +/-22V supply. Don’t forget to mount a heatsink on the power IC STA550 to prevent overheating.? With the features of this IC is owned, produced the audio output will not disappoint.

About STA550:
The STA550 is a fully integrated power module designed to implement a BASH? amplifier when used in conjunction with STABP01 digital processor.

Features:

  • Monochip bridge stereo amplifier for bash? architecture
  • 55+55w output power @ rl = 4/8?, thd = 0.5%
  • 70+70w output power @ rl = 4/8?, thd = 10%
  • High dynamic preamplifier input stages
  • External programmable feedback type compressors
  • Ac coupled input to class ab bridge output amplifier
  • Precision rectifiers to drive the digital converter
  • On-off sequence/ timer with mute and standby
  • Proportional over power output current to limit the digital converter
  • Absolute power bridge output transistor power protection
  • Absolute output current limit
  • Integrated thermal protection
  • Power supply over voltage protection
  • Flexiwatt power package with 27 pin

Download STA550 Datasheet for 70W power stereo amplifier circuit reference.
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