LM4766 - Overture Audio Power Amplifier Series Dual 40-Watt Audio Power Amplifier with Mute

Datasheet Packaging Samples & Pricing Reliability Knowledge Base

Features
•SPiKe Protection
•Minimal amount of external components necessary
•Quiet fade-in/out mute mode
•Non-Isolated 15-lead TO-220 package
•Wide Supply Range 20V - 78V

Key Specification

THD+N at 1kHz at 2 x 30W continuous average output power into 80.1% (max)
THD+N at 1kHz at continuous average output power of 2 x 30W into 80.009% (typ)

General Description

The LM4766 is a stereo audio amplifier capable of delivering typically 40W per channel with the non-isolated "T" package and 30W per channel with the isolated "TF" package of continuous average output power into an 8 load with less than 0.1% (THD+N).

The performance of the LM4766, utilizing its Self Peak Instantaneous Temperature (°Ke) (SPiKe™) Protection Circuitry, places it in a class above discrete and hybrid amplifiers by providing an inherently, dynamically protected Safe Operating Area (SOA). More...


Applications

•High-end stereo TVs
•Component stereo
•Compact stereo
  Typical Application
click for larger image


Parametric Table     expand
Parametric Table    collapse
Power@ 4Ohms, 1% THD 42 Watt
Power@ 8Ohms, 1% THD 26 Watt
Power@ 4Ohms, 10% THD 53 Watt
Power@ 8Ohms, 10% THD 37 Watt
THD 0.06 %
SNR 100 dB
Channels 2 Channels
THD Conditions P=30W,Vs=±30V, RL=8ohms
PSRR Conditions Undefined
SNR Conditions Undefined
Power@ 4Ohms, 1% THD 42 Watt
Power@ 8Ohms, 1% THD 26 Watt
Power@ 4Ohms, 10% THD 53 Watt
Power@ 8Ohms, 10% THD 37 Watt
THD 0.06 %
SNR 100 dB
Channels 2 Channels
THD Conditions P=30W,Vs=±30V, RL=8ohms
PSRR Conditions Undefined
SNR Conditions Undefined
User Supply 30 Volt
Supply Range +20 - +60V
Mute/Shutdown Mute
Mono/Stereo Stereo
Gain Bandwidth 8 MHz
Slew Rate 9 Volts/usec
Temperature Min 0 deg C
Temperature Max 70 deg C
View Using Catalog


Typical Performance

*click for larger image


  Connection Diagram
click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM4766 Overture™ Audio Power Amplifier Series Dual 40W Audio Power Amplifier with Mute 988 Kbytes 23-Mar-06 Download
LM4766 Overture™ Audio Power Amplifier Series Dual 40W Audio Power Amplifier with Mute (Japanese)
 690 Kbytes   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
LM4766TTO-22015STD
NOPB		1
1		NA
NA		RoHS Download Full productionN/A
Samples
Buy Now 		1K+$3.02rail
of
20		NSUZXYTTE#
LM4766T
6 weeks500
LM4766TFISOLATED TO22015NOPB1NARoHS Download Full productionN/A
Samples
Buy Now 		1K+$3.24rail
of
20		NSUZXYTTE#
LM4766TF
6 weeks2000

General Description

The LM4766 is a stereo audio amplifier capable of delivering typically 40W per channel with the non-isolated "T" package and 30W per channel with the isolated "TF" package of continuous average output power into an 8 load with less than 0.1% (THD+N).

The performance of the LM4766, utilizing its Self Peak Instantaneous Temperature (°Ke) (SPiKe™) Protection Circuitry, places it in a class above discrete and hybrid amplifiers by providing an inherently, dynamically protected Safe Operating Area (SOA). SPiKe Protection means that these parts are safeguarded at the output against overvoltage, undervoltage, overloads, including thermal runaway and instantaneous temperature peaks.

Each amplifier within the LM4766 has an independent smooth transition fade-in/out mute that minimizes output pops. The IC's extremely low noise floor at 2µV and its extremely low THD+N value of 0.06% at the rated power make the LM4766 optimum for high-end stereo TVs or minicomponent systems.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM4766THV7000135800012225003346887713
LM4766TFHV7000135800012225003346887713

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.


[Information as of 5-Jul-2009]