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SA58637 - 2 x 2.2W BTL audio amplifier

General Description

The SA58637 is a two-channel audio amplifier in an HVQFN20 package.

It provides power output of 2.2 W per channel with an 8 Ω load at 9 V supply.

The internal circuit is comprised of two Bridge-Tied Load (BTL) amplifiers with a complementary PNP-NPN output stage and standby/mute logic.

Key Features

  • I Low junction-to-ambient thermal resistance using exposed die attach paddle I Gain can be fixed with external resistors from 6 dB to 30 dB I Standby mode controlled by CMOS-compatible levels I Low standby current < 10 µA I No switch-on/switch-off plops I High power supply ripple rejection: 50 dB minimum I ElectroStatic Discharge (ESD) protection I Output short circuit to ground protection I Thermal shutdown protection 3.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SA58637 2 × 2.2 W BTL audio amplifier Rev. 01 — 25 February 2008 Product data sheet 1. General description The SA58637 is a two-channel audio amplifier in an HVQFN20 package. It provides power output of 2.2 W per channel with an 8 Ω load at 9 V supply. The internal circuit is comprised of two Bridge-Tied Load (BTL) amplifiers with a complementary PNP-NPN output stage and standby/mute logic. The SA58637 is housed in a 20-pin HVQFN package, which has an exposed die attach paddle enabling reduced thermal resistance and increased power dissipation. 2.