STA540 Description

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

applications. The STMicroelectronics STA540  has single-ended outputs with integrated short-circuit protection, thermal protection, and diagnostic functions. The amplifier STA540 is housed in the 15-pin Multiwatt ECOPACK? Pb-free package which is RoHS (2002/95/EC) compliant. What's more, the STA540 operates within ambient temperatures from 0 to 70°C and with power dissipation of 36000 mW.

STA540 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

STA540 Applications

• Moog Model 15

• iVCS3

• Sunrizer

• Tardigrada

• Grainstorm

• SoundScaper

• Moebius Lab

• Factory

• Vosis

• Fractal Bits