LM4853MM

Manufacturer Part NumberLM4853MM
DescriptionIC,Audio Amplifier,SINGLE,TSSOP,10PIN,PLASTIC
ManufacturerNational Semiconductor
LM4853MM datasheets
 


Specifications of LM4853MM

Lead Free Status / RoHS StatusContains lead / RoHS non-compliant  
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LM4853
Mono 1.5 W / Stereo 300mW Power Amplifier
General Description
The LM4853 is an audio power amplifier capable of deliver-
ing 1.5W (typ) of continuous average power into a mono 4Ω
bridged-tied load (BTL) with 1% THD+N or 95mW per chan-
nel of continuous average power into stereo 32Ω single-
ended (SE) loads with 1% THD+N, using a 5V power supply.
The LM4853 can automatically switch between mono BTL
and stereo SE modes utilizing a headphone sense pin. It is
ideal for any system that provides both a monaural speaker
output and a stereo line or headphone output
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components. Since the LM4853 does not require
bootstrap capacitors or snubber networks, it is optimally
suited for low-power portable systems.
The LM4853 features an externally controlled, micropower
consumption shutdown mode and thermal shutdown protec-
tion. The unity-gain stable LM4853’s gain is set by external
gain-setting resistors
Connection Diagrams
Top View
10 Lead MSOP
Order Number LM4853MM
See NS Package Number MUB10A
Boomer
®
is a registered trademark of National Semiconductor Corporation.
© 2003 National Semiconductor Corporation
Key Specifications
n Output Power at 1% THD+N, 1kHz:
LM4853LD 3Ω BTL
n
LM4853LD 4Ω BTL
n
LM4853MM 4Ω BTL
n
LM4853MM,LD 8Ω BTL
n
LM4853MM,LD 8Ω SE
n
LM4853MM,LD 32Ω SE
n
n THD+N at 1kHz, 95mW into 32Ω SE
n Single Supply Operation
n Shutdown Current
Features
n Mono 1.5W BTL or stereo 300mW output
n Headphone sense
n “Click and pop” suppression circuitry
n No bootstrap capacitors required
n Thermal shutdown protection
n Unity-gain stable
n Available in space-saving MSOP and LLP packaging
Applications
n Portable computers
n Desktop computers
n PDA’s
n Handheld games
20033429
See NS Package Number LDA14A
DS200334
January 2003
1.9W (typ)
1.7W (typ)
1.5W (typ)
1.1W (typ)
300mW (typ)
95mW (typ)
1% (typ)
2.4 to 5.5V
18µA (typ)
20033428
Top View
14 Lead LLP
Order Number LM4853LD
www.national.com