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LM4755 Datasheet, PDF (1/29 Pages) National Semiconductor (TI) – Stereo 11W Audio Power Amplifier with Mute | |||
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LM4755
www.ti.com
SNAS010E â FEBRUARY 1999 â REVISED APRIL 2013
LM4755 Stereo 11W Audio Power Amplifier with Mute
Check for Samples: LM4755
FEATURES
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â¢2 Drives 4⦠and 8⦠Loads
⢠Integrated Mute Function
⢠Internal Gain Resistors
⢠Minimal External Components Needed
⢠Single Supply Operation
⢠Internal Current Limiting and Thermal
Protection
⢠Compact 9-lead TO-220 Package
⢠Wide Supply Range 9V - 40V
APPLICATIONS
⢠Stereos TVs
⢠Compact Stereos
⢠Mini Component Stereos
DESCRIPTION
The LM4755 is a stereo audio amplifier capable of
delivering 11W per channel of continuous average
output power to a 4⦠load or 7W per channel into 8â¦
using a single 24V supply at 10% THD+N. The
internal mute circuit and pre-set gain resistors provide
for a very economical design solution.
Output power specifications at both 20V and 24V
supplies and low external component count offer high
value to consumer electronic manufacturers for
stereo TV and compact stereo applications. The
LM4755 is specifically designed for single supply
operation.
KEY SPECIFICATIONS
⢠Output Power at 10% THD with 1kHz into 4⦠at
VCC = 24V 11 W (typ)
⢠Output Power at 10% THD with 1kHz into 8⦠at
VCC = 24V 7 W (typ)
⢠Closed Loop Gain 34 dB (typ)
⢠PO at 10% THD+N @ 1kHz into 4⦠Single-
Ended DDPAK Package at VCC=12V 2.5 W (typ)
⢠PO at 10% THD+N @ 1kHz into 8⦠Bridged
DDPAK Package at VCC=12V 5 W (typ)
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1999â2013, Texas Instruments Incorporated
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