LME49811 - High Fidelity 200 Volt Power Amplifier Input Stage with Shutdown
Datasheet Packaging Samples & Pricing Reliability Knowledge Base

Features
•Very high voltage operation
•Scalable output power
•Minimum external components
•External compensation
•Thermal Shutdown

Key Specification

■  Wide operating voltage range ±20V to ±100V
■  PSRR (f = DC) 115dB (typ)
■  THD+N (f = 1kHz) 0.00035% (typ)
■  Output Drive Current 9mA

General Description

The LME49811 is a high fidelity audio power amplifier input stage designed for demanding consumer and pro-audio applications. Amplifier output power may be scaled by changing the supply voltage and number of output devices. More...


Applications

•Powered subwoofers
•Pro audio
•Powered studio monitors
•Audio video receivers
•Guitar Amplifiers
•High voltage industrial applications
  Typical Application
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ParametersValues
THD 0.0003 %
PSRR 110 dB
Single/Dual/Quad Single
THD Conditions No load, Av = 30dB, Vout = 20Vrms @ 1kHz
PSRR Conditions Rs = 1k, f = 100Hz, Vripple = 1Vrms, Input Referred
Supply Range +/-20V to +/-100V
Slew Rate 17 Volts/usec
Mono/Stereo Mono
Temperature Min -20 deg C
Temperature Max +75 deg C
Channels 1 Channels
Automotive Yes


Typical Performance

click for larger image


  Connection Diagram
click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LME49811 Audio Power Amplifier Series High Fidelity 200 Volt Power Amplifier Input Stage with Shutdown 634
Kbytes		 4-Jan-08 Download

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Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
Format
TypePinsSpec.MSL
Rating		Peak
Reflow		RoHS
Report		CAD
Symbols		WeeksQtyQty$US each
LME49811TBTO-247 SINGLE GAUGE15NOPB1NARoHS N/A Full productionN/A
Samples
Buy Now 		1K+$3.33rail
of
24		NSUZXYTTE#
LME49811
TB
6 weeksN/A

General Description

The LME49811 is a high fidelity audio power amplifier input stage designed for demanding consumer and pro-audio applications. Amplifier output power may be scaled by changing the supply voltage and number of output devices. The LME49811 is capable of driving an output stage to deliver in excess of 500 watts single-ended into an 8 ohm load in the presence of 10% high line headroom and 20% supply regulation.

The LME49811 includes thermal shut down circuitry that activates when the die temperature exceeds 150°C. The LME49811's shutdown function when activated, forces the LME49811 into shutdown state.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LME49811TBVIP III H/HU202366007025546199351615

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


Application Notes

TitleSize in Kbytes Date Click link below to Download
AN-1849: Application Note 1849 An Audio Amplifier Power Supply Design 1495
Kbytes		 3-Jun-08 Download

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[Information as of 7-Nov-2009]