LME49811 - High Fidelity 200 Volt Power Amplifier Input Stage with Shutdown

Datasheet Packaging Samples & Pricing Reliability Application Notes 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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Parametric Table     expand
Parametric Table    collapse
THD 0.0003 %
PSRR 110 dB
Single/Dual/Quad Single
THD Conditions No load, Av = 30dB, Vout = 20Vrms @ 1kHz
THD Conditions No load, Av = 30dB, Vout = 20Vrms @ 1kHz
PSRR Conditions Rs = 1k, f = 100Hz, Vripple = 1Vrms, Input Referred
PSRR Conditions Rs = 1k, f = 100Hz, Vripple = 1Vrms, Input Referred
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 Selection Guide Yes
View Using Catalog


Typical Performance

click for larger image


  Additional Resources
Application Notes (see below)


Connection Diagram

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

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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		NSUZXYTT
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 Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LME49811TBVIP III H/HU202366005675547161044997

For more information on Reliability Metrics, please click here.


Application Notes

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

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 5-Sep-2008]