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LA4905 - 17-W / 2-Channel BTL AF High-Efficiency Power Amplifier for Car Stereo Systems

Datasheet Summary

Features

  • Power dissipation reduced by 50% (When average music power is measured, and when compared to earlier Sanyo products. ).
  • The number of required signal follower circuits has been reduced to a single circuit for two channels, allowing the number of external components to be reduced.
  • The output is a pure analog signal: no switching noise is output to the output lines.
  • Operates on an 8 to 18-V single-voltage power supply.
  • Full complement of built-in pro.

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Datasheet preview – LA4905

Datasheet Details

Part number LA4905
Manufacturer Sanyo
File Size 549.19 KB
Description 17-W / 2-Channel BTL AF High-Efficiency Power Amplifier for Car Stereo Systems
Datasheet download datasheet LA4905 Datasheet
Additional preview pages of the LA4905 datasheet.

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Full PDF Text Transcription

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Ordering number : EN5504 Monolithic Linear IC LA4905 17-W, 2-Channel BTL AF High-Efficiency Power Amplifier for Car Stereo Systems Overview The LA4905 is a BTL 2-channel power amplifier IC for use in car audio systems. Increases in the number of external components are held to a minimum by adopting both a signal-following type switching scheme in the amplifier’s output stage power supply, and a newlydeveloped nonlinear amplifier that has nonlinear characteristics in the signal system. The power dissipation (thermal loss) in the actual operating range has been reduced to about 1/2 that of earlier class B amplifier ICs. This contributes significantly to miniaturization of the heat sink and to reduction of heating within the set.
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