Overture Series: Dual 40W Audio Amplifier with Mute - LM4766

LM4766 (ACTIVE)

Overture Series: Dual 40W Audio Amplifier with Mute

 

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Description

The LM4766 is a stereo audio amplifier capable of delivering typically 40W per channel with the non-isolated "NDL" package and 30W per channel with the isolated "NDB" package of continuous average output power into an 8Ω 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.

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 Specifications

  • THD+N at 1kHz at 2 x 30W Continuous Average Output Power Into 8Ω 0.1% (Max)
  • THD+N at 1kHz at Continuous Average Output Power of 2 x 30W Into 8Ω 0.009% (Typ)

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Parametrics Compare all products in Analog Input Class-D

 
Power to Bridge Tied Load (Max) (W)
Power to Parallel Bridge Tied Load (Max) (W)
Supported Bridge Tied Load (Min) (Ohms)
Supported Parallel Bridge Tied Load (Min) (Ohms)
Closed/Open Loop
Control Interface
Analog Supply (V) (Min)
Analog Supply (V) (Max)
Output Power (W)
Power Stage Supply (Max) (V)
Speaker Channels (Max)
THD + N @ 1 kHz (%)
Iq (Typ) (mA)
Operating Temperature Range (C)
Rating
Package Group
Audio Input Type
Package Size: mm2:W x L (PKG)
LM4766
N/A   
N/A   
N/A   
N/A   
Open   
Hardware   
20   
66   
50   
60   
2   
0.06   
24   
0 to 70   
Catalog   
TO-220   
Analog   
See datasheet (TO-220)   

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