ST STA540

AB 类2-通道（立体声）或 4 通道（四路）8V ~ 22V

Overview

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.

A: The standby function allows the amplifier to enter a low-power state when not in use. Refer to the datasheet for details.

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

Applications

• Moog Model 15

• iVCS3

• Sunrizer

• Tardigrada

• Grainstorm

• SoundScaper

• Moebius Lab

• Factory

• Vosis

• Fractal Bits