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LM4700T-LM4700TF
Overture 30 Watt Audio Power Amplifier with Mute and StandbyModes
LM4700
Overture™ Audio Power Amplifier Series
30W Audio Power Amplifier with
Mute and Standby Modes
General DescriptionThe LM4700isan audio power amplifier capableof deliver-
ing typically 30Wof continuous average output power intoan load with less than 0.1% THD+N.
The LM4700 hasan independent smooth transition fade-in/
out mute anda power conserving standby mode which can controlledby external logic.
The performanceof the LM4700, utilizingits Self PeakIn-
stantaneous Temperature (˚Ke) (SPiKe™) protection cir-
cuitry, placesitina class above discrete and hybrid amplifi-
ersby providingan inherently, dynamically protected Safe
Operating Area (SOA).
SPiKe protection means that these
parts are completely safeguardedatthe output against ov-
ervoltage, undervoltage, overloads, including thermal run-
away and instantaneous temperature peaks.
Key Specifications THD+Nat 1kHzat continuous average output powerof
25W into 8Ω: 0.1% (max) THD+N from 20Hzto 20kHzat 30Wof continuous
average output power into 8Ω: 0.08% (typ) Standby current: 2.1mA (typ)
Features SPiKe Protection Minimal amountof external components necessary Quiet fade-in/out mute function Power conserving standby-mode Isolated 11-lead TO-220 package Wide supply range 20V- 66V
Applications Component stereo Compact stereo
Typical Application*Optional components dependent upon specific design requirements. Refertothe External Components Description sectionfora component functional
description.
FIGURE1. Typical Audio Amplifier Application CircuitAugust 2000
LM4700
Overture
Audio
Power
Amplifier
Series
30W
Audio
Power
Amplifier
with
Mute
and
Standby
Modes
