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LM4952 データシート(PDF) 1 Page - Texas Instruments

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部品番号 LM4952
部品情報  Boomer Audio Power Amplifier Series 3.1W Stereo-SE Audio Power Amplifier with DC Volume Control
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

LM4952 データシート(HTML) 1 Page - Texas Instruments

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LM4952
www.ti.com
SNAS230A – AUGUST 2004 – REVISED MAY 2013
LM4952 Boomer™ Audio Power Amplifier Series 3.1W Stereo-SE Audio Power Amplifier
with DC Volume Control
Check for Samples: LM4952
1
FEATURES
DESCRIPTION
The LM4952 is a dual audio power amplifier primarily
23
Pop & Click Circuitry Eliminates Noise During
designed for demanding applications in flat panel
Turn-on and Turn-off Transitions
monitors and TV's. It is capable of delivering 3.1
Low Current, Active-low Shutdown Mode
watts per channel to a 4
Ω single-ended load with less
Low Quiescent Current
than 1% THD+N when powered by a 12VDC power
supply.
Stereo 3.8W Output, RL = 4Ω
Eliminating external feedback resistors, an internal,
DC-controlled Volume Control
DC-controlled,
volume
control
allows
easy
and
Short Circuit Protection
variable gain adjustment.
APPLICATIONS
Boomer
audio
power
amplifiers
were
designed
specifically to provide high quality output power with a
Flat Panel Monitors
minimal
amount
of
external
components.
The
Flat Panel TV's
LM4952 does not require bootstrap capacitors or
snubber circuits. Therefore, it is ideally suited for
Computer Sound Cards
display applications requiring high power and minimal
size.
KEY SPECIFICATIONS
The LM4952 features a low-power consumption
Quiscent Power Supply Current 18mA (typ)
active-low shutdown mode. Additionally, the LM4952
POUT @
features an internal thermal shutdown protection
VDD = 12V, RL = 4Ω, 10% THD+N 3.8W (typ)
mechanism along with short circuit protection.
Shutdown current 55
μA (typ)
The LM4952 contains advanced pop & click circuitry
that eliminates noises which would otherwise occur
during turn-on and turn-off transitions.
1
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.
2
Boomer is a trademark of Texas Instruments Incorporated.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004–2013, Texas Instruments Incorporated
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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