LM4766 Overture Series: Dual 40W Audio Amplifier with Mute | TI.com

LM4766 (ACTIVE)

Overture Series: Dual 40W Audio Amplifier with Mute

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

Next Generation 50-W, Stereo, Analog Input Class-D Audio Amplifier:  TPA3116D2

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 Speaker Amps

 
Audio Input Type
Architecture
Speaker Channels (Max)
Power Stage Supply (Min) (V)
Power Stage Supply (Max) (V)
Output Power (W)
Load (Min) (ohms)
SNR (dB)
THD + N @ 1 kHz (%)
Iq (Typ) (mA)
Control Interface
Closed/Open Loop
Analog Supply (V) (Min)
Analog Supply (V) (Max)
Power to Parallel Bridge Tied Load (Max) (W)
PSRR (dB)
Operating Temperature Range (C)
Rating
LM4766 TPA3116D2
Analog Input     Analog Input    
Class-AB     Class-D    
Stereo     Stereo    
20     4.5    
60     26    
50     50    
  4    
112     102    
0.06     0.1    
24     20    
Hardware     Hardware    
Open     Closed    
20     4.5    
66     26    
40     100    
125     70    
0 to 70     -40 to 85    
Catalog     Catalog    

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