17-w, 2-channel Btl Af High-efficiency Power Amplifier For Car Stereo Systems Semicon Device

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 Amplifiers output stage power supply, and a newly- developed 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. By Sanyo Semiconductor Corporation
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LA4905 Application circuits
LA4905 circuits
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