LM4755TS Datasheet, PDF (1/24 Pages) Texas Instruments – LM4755 Stereo 11W Audio Power Amplifier with Mute

LM4755
www.ti.com
SNAS010E – FEBRUARY 1999 – REVISED APRIL 2013
LM4755 Stereo 11W Audio Power Amplifier with Mute
Check for Samples: LM4755
FEATURES
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•2 Drives 4Ω and 8Ω 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 4Ω load or 7W per channel into 8Ω
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 4Ω at
V_CC = 24V 11 W (typ)
• Output Power at 10% THD with 1kHz into 8Ω at
V_CC = 24V 7 W (typ)
• Closed Loop Gain 34 dB (typ)
• P_O at 10% THD+N @ 1kHz into 4Ω Single-
Ended DDPAK Package at V_CC=12V 2.5 W (typ)
• P_O at 10% THD+N @ 1kHz into 8Ω Bridged
DDPAK Package at V_CC=12V 5 W (typ)
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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.
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