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MAX4297 - Mono/Stereo 2W Switch-Mode (Class-D) Audio Power Amplifiers

This page provides the datasheet information for the MAX4297, a member of the MAX Mono/Stereo 2W Switch-Mode (Class-D) Audio Power Amplifiers family.

Datasheet Summary

Description

The MAX4295/MAX4297 mono/stereo, switch-mode (Class-D) audio power amplifiers operate from a single +2.7V to +5.5V supply.

Features

  • include a 1A current limit, thermal protection, and under-voltage lockout. The MAX4295 (mono) and MAX4297 (stereo) reduce the number of required external components. Both devices have internal high-speed power-MOS transistors, allowing operation as bridge-tied load (BTL) amplifiers. The BTL configuration eliminates the need for isolation capacitors on the output. The frequency-selectable pulse-width modulator (PWM) allows the user to optimize the size and cost of the output filter. The MAX4295 i.

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Datasheet preview – MAX4297

Datasheet Details

Part number MAX4297
Manufacturer Maxim
File Size 501.27 KB
Description Mono/Stereo 2W Switch-Mode (Class-D) Audio Power Amplifiers
Datasheet download datasheet MAX4297 Datasheet
Additional preview pages of the MAX4297 datasheet.

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Full PDF Text Transcription

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19-1746; Rev 1; 2/01 Mono/Stereo 2W Switch-Mode (Class-D) Audio Power Amplifiers General Description The MAX4295/MAX4297 mono/stereo, switch-mode (Class-D) audio power amplifiers operate from a single +2.7V to +5.5V supply. They have >85% efficiency and are capable of delivering 2W continuous power to a 4Ω load, making them ideal for portable multimedia and general-purpose high-power audio applications. The MAX4295/MAX4297 feature a total harmonic distortion plus noise (THD+N) of 0.4% (fOSC = 125kHz), low quiescent current of 2.8mA (MAX4295) or 4.6mA (MAX4297), high efficiency, and clickless power-up and shutdown. The SHDN input disables the device and limits supply current to <1.5µA (MAX4295) or <2.3µA (MAX4297).
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