1FEATURES

23• 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

APPLICATIONS

• High-End Stereo TVs

• Component Stereo

• Compact Stereo

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)

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 highend

stereo TVs or minicomponent systems.