STA540 - Dual/Quad Power Amplifier - (AD33618)

Description:

The STA540 from STMicroelectronics is a 4-channel, class AB audio amplifier designed for high-quality sound applications. Its four independent channels make it an excellent choice for various projects, from four-speaker stereo setups (front/rear) to two-speaker bridge configurations. The chip supports a supply voltage from 8 to 22 V DC and offers very high output power.

Features:

• High output power
• Standby function (CMOS compatible)
• Minimal external components:
  • No bootstrap capacitors
  • No Boucherot cells
  • Fixed internal gain of 20 dB
• No audible pop during standby mode
• Diagnostic functions:
  • Clip detector
  • Output-to-ground short circuit detector
  • Output-to-VS short circuit detector
  • Soft short circuit check at power-on
  • Overheating shutdown warning
• AC/DC short circuit protection on output
• Soft short circuit check at power-on
• Thermal limiter/cutter to prevent chip overheating

Datasheet