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LM4752 - Stereo 11W Audio Power Amplifier

General Description

The LM4752 is a stereo audio amplifier capable of delivering 11W per channel of continuous average output power to a 4Ω load, or 7W per channel into 8Ω using a single 24V supply at 10% THD+N.

The LM4752 is specifically designed for single supply operation and a low external component count.

Key Features

  • n n n n n n n n Drives 4Ω and 8Ω loads Internal gain resistors (AV = 34 dB) Minimum external component requirement Single supply operation Internal current limiting Internal thermal protection Compact 7 lead TO-220 package Low cost-per-watt Key Specifications n Output power at 10% THD+N with 1 kHz into 4Ω at V CC = 24V 11W (typ) n Output power at 10% THD+N with 1 kHz into 8Ω at V CC = 24V 7W (typ) n Closed loop gain 34 dB (typ) n PO at 10% THD @ 1 kHz into 4Ω Single-ended TO-263 pkg. at VCC = 1.

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LM4752 Stereo 11W Audio Power Amplifier February 1999 LM4752 Stereo 11W Audio Power Amplifier General Description The LM4752 is a stereo audio amplifier capable of delivering 11W per channel of continuous average output power to a 4Ω load, or 7W per channel into 8Ω using a single 24V supply at 10% THD+N. The LM4752 is specifically designed for single supply operation and a low external component count. The gain and bias resistors are integrated on chip, resulting in a 11W stereo amplifier in a compact 7 pin TO220 package. High output power levels at both 20V and 24V supplies and low external component count offer high value for compact stereo and TV applications. A simple mute function can be implemented with the addition of a few external components.