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STA540：4 x 13 W dual/quad power amplifier

The STA540 is a 4-channel, class-AB audio amplifier designed for high quality sound applications.

The amplifiers have single-ended outputs with integrated short-circuit protection, thermal protection and diagnostic functions.

The chip is housed in the 15-pin Multiwatt ECOPACK^®Pb-free package which is RoHS (2002/95/EC) compliant.

Key Features

• High output power capability
  • 2x 38 W into 4 Ω at 18 V, 1 kHz, 10% THD
  • 2x 34 W into 8 Ω at 22 V, 1 kHz, 10% THD
  • 2x 24W into 4Ω at 14.4 V, 1 kHz, 10% THD
  • 2x 15 W into 8 Ω at 16 V, 1 kHz, 10% THD
  • 4x 13 W into 2 Ω at 15 V, 1 kHz, 10% THD
  • 4x 11 W into 4 Ω at 18 V, 1 kHz, 10% THD
  • 4x 7 W into 4 Ω at 14.4 V, 1 kHz, 10% THD
• Minimum external components count:
  • no bootstrap capacitors
  • no Boucherot cells
  • internally fixed gain 20 dB
• Standby function (CMOS compatible)
• 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
• Protection
  • Output AC/DC short circuit
  • Soft short-circuit check at turn-on
  • Thermal cutoff/limiter to prevent chip from overheating
  • High inductive loads
  • ESD

产品规格

样片和购买

质量和可靠性