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LM4853 Datasheet Preview

LM4853 Datasheet

Power Amplifier

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LM4853
www.ti.com
SNAS155E – JANUARY 2002 – REVISED MAY 2013
LM4853
Mono 1.5 W / Stereo 300mW Power Amplifier
Check for Samples: LM4853
FEATURES
1
2 Mono 1.5W BTL or Stereo 300mW Output
• Headphone Sense
• “Click and Pop” Suppression Circuitry
• No Bootstrap Capacitors Required
• Thermal Shutdown Protection
• Unity-Gain Stable
• Available in Space-Saving VSSOP and WSON
Packaging
APPLICATIONS
• Portable Computers
• Desktop Computers
• PDA's
• Handheld Games
KEY SPECIFICATIONS
• Output Power at 1% THD+N, 1kHz:
– LM4853LD 3BTL 1.9W (typ)
– LM4853LD 4BTL 1.7W (typ)
– LM4853MM 4BTL 1.5W (typ)
– LM4853MM,LD 8BTL 1.1W (typ)
– LM4853MM,LD 8SE 300mW (typ)
– LM4853MM,LD 32SE 95mW (typ)
• THD+N at 1kHz, 95mW into 32SE 1% (typ)
• Single Supply Operation 2.4 to 5.5V
• Shutdown Current 18µA (typ)
DESCRIPTION
The LM4853 is an audio power amplifier capable of
delivering 1.5W (typ) of continuous average power
into a mono 4bridged-tied load (BTL) with 1%
THD+N or 95mW per channel of continuous average
power into stereo 32single-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 protection. The unity-gain stable
LM4853's gain is set by external gain-setting resistors
Connection Diagram
Figure 1. 10 Lead VSSOP – Top View
Figure 2. 14 Lead WSON – Top View
See Package Number DGS
See Package Number NHE0014A
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.
All trademarks are the property of their respective owners.
2
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 © 2002–2013, Texas Instruments Incorporated




etcTI

LM4853 Datasheet Preview

LM4853 Datasheet

Power Amplifier

No Preview Available !

LM4853
SNAS155E – JANUARY 2002 – REVISED MAY 2013
Typical Application
www.ti.com
Figure 3. Typical Audio Amplifier Application Circuit
2
Submit Documentation Feedback
Product Folder Links: LM4853
Copyright © 2002–2013, Texas Instruments Incorporated



Part Number LM4853
Description Power Amplifier
Maker etcTI
Total Page 3 Pages
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LM4853 Datasheet PDF





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