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


Parametric Table     expand
Parametric Table    collapse
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
THD Conditions No Load, BW=30kHz, VOUT=30Vrms, f=1kHz
PSRR Conditions f=DC, Input Referred
PSRR Conditions f=DC, Input Referred
User Supply 100 Volt
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 Selection Guide Yes
View Using Catalog


Typical Performance

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  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
LME49810   200V Audio Power Amplifier Driver with Baker Clamp 867 Kbytes 17-Sep-07 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
LME49810TBTO-247 SINGLE GAUGE15NOPB1NARoHS N/A Full productionN/A
Samples
Buy Now 		1K+$3.67rail
of
24		NSUZXYTT
LME49810
TB
6 weeks50

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 Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LME49810TBVIP III H/HU2013380036355410103159440

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

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[Information as of 25-Jul-2008]