PAM8945 Datasheet PDF (4.0W CLASS-G AUDIO AMPLIFIER)

PAM8945 - 4.0W CLASS-G AUDIO AMPLIFIER

Description

The PAM8945 is a high-efficiency Class-G audio power amplifier with an integrated boost converter.

It drives up to 4.0W (10% THD+N) into a 4Ω speaker.

With 85% typical efficiency, the PAM8945 helps extend battery life when playing audio.

Features

battery tracking AGC function which adjusts the amplifier gain to limit battery current at lower battery voltage. OUT- 3 The PAM8945 features DC input protection and all outputs are fully protected against output-to-output shorts. The PAM8945 is available in tiny W-QFN2030-12 package. Features.
Built-in Battery Tracking Automatic Gain Control (AGC).
High-Efficiency Integrated Boost Converter Over 85%.
4.0W into a 4Ω Load at 10% THD.
3.2W into a 4Ω Load at 1% THD.
Opera.

Datasheet Details

Part number	PAM8945
Manufacturer	DIODES
File Size	836.90 KB
Description	4.0W CLASS-G AUDIO AMPLIFIER
Datasheet	PAM8945 Datasheet
Additional preview pages of the PAM8945 datasheet.

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Full PDF Text Transcription

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PAM8945 4.0W CLASS-G AUDIO AMPLIFIER WITH INTEGRATED BOOST CONVERTER AND BATTERY TRACKING AGC Description The PAM8945 is a high-efficiency Class-G audio power amplifier with an integrated boost converter. It drives up to 4.0W (10% THD+N) into a 4Ω speaker. With 85% typical efficiency, the PAM8945 helps extend battery life when playing audio. The built-in boost converter generates the voltage rail for the output stage. This provides a louder audio output than a stand-alone amplifier connected directly to the battery. It also maintains a consistent loudness, regardless of battery voltage. Pin Assignments (Top View) BGND SW PVDD 1 12 11 OUT+ 2 The PAM8945 features battery tracking AGC function which adjusts the amplifier gain to limit battery current at lower battery voltage.

Published: Feb 26, 2016 |