LME49810 - 200V Audio Power Amplifier Driver with Baker Clamp
Datasheet Packaging Samples & Pricing Reliability Application Notes Knowledge Base

Features
•Very high voltage operation
•Output clamp logic output
•Thermal shutdown and mute
•Customizable external compensation
•Scalable output power

Key Specification

■  Wide operating voltage range ±20V to ±100V
■  Slew Rate 50V/μs (typ)
■  Output Drive Current 60mA (typ)
■  PSRR (f = DC) 110dB (typ)
■  THD+N (f = 1kHz) 0.0007 (typ)

General Description

The LME49810 is a high fidelity audio power amplifier driver designed for demanding consumer and pro-audio applications. More...


Applications

•Guitar amplifiers
•Powered studio monitors
•Powered subwoofers
•Pro audio
•Audio video receivers
•High voltage industrial applications
  Typical Application
*click for larger image


ParametersValues
THD 0.0007 %
PSRR 110 dB
Single/Dual/Quad Single
Special Features Baker Clamp prevents output saturation
THD Conditions No Load, BW=30kHz, VOUT=30Vrms, f=1kHz
PSRR Conditions f=DC, Input Referred
User Supply 100 Volt
Supply Range +/-20V to +/-100V
Max Input Bias Current 200 nA
Output Current 60 mA
Offset Voltage, typ 1 mV
Slew Rate 50 Volts/usec
Mono/Stereo Mono
Temperature Min -20 deg C
Temperature Max 85 deg C
Channels 1 Channels
Offset Voltage max, 25C 3 mV
Automotive Yes


Typical Performance

click for larger image


  Additional Resources
Application Notes


Connection Diagram

click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LME49810   200V Audio Power Amplifier Driver with Baker Clamp 867
Kbytes		 17-Sep-07 Download

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


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
LME49810TBTO-247 SINGLE GAUGE15NOPB1NARoHS N/A Full productionN/A
Samples
Buy Now 		1K+$3.42rail
of
24		NSUZXYTTE#
LME49810
TB
6 weeks100

General Description

The LME49810 is a high fidelity audio power amplifier driver designed for demanding consumer and pro-audio applications. Amplifier output power may be scaled by changing the supply voltage and number of power transistors. The LME49810’s minimum output current is 50mA. When using a discrete output stage the LME49810 is capable of delivering in excess of 300 watts into a single-ended 8Ω load.

Unique to the LME49810 is an internal Baker Clamp. This clamp insures that the amplifier output does not saturate when over driven. The resultant “soft clipping” of high level audio signals suppresses undesirable audio artifacts generated when conventional solid state amplifiers are driven hard into clipping.

The LME49810 includes thermal shutdown circuitry that activates when the die temperature exceeds 150°C. The LME49810’s mute function, when activated, mutes the input drive signal and forces the amplifier output to a quiescent state.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LME49810TBVIP 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.


More 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

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

[Information as of 7-Nov-2009]