Stereo 11W Audio Power Amplifier
LM4752 Stereo 11W Audio Power Amplifier
February 1999
LM4752 Stereo 11W Audio Power Amplifier
General Description
The ...
Description
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. n PO at 10% THD @ 1 kHz into 8Ω bridged TO-263 pkg. at VCC = 12V 5W (typ)
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 = 12V 2.5W (typ)
Applications
n n n n Compact stereos Stereo TVs Mini component stereos Multimedia speakers
Typical Application
Connection Diagram
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