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LM4701
Audio Power Amplifier Series 30W Audio Power Amplifier with Mute and Standby Modes
LM4701 Overture™ Audio Power Amplifier Series
30W Audio Power Amplifier with
Mute and Standby Modes
General DescriptionThe LM4701isan audio power amplifier capableof deliver-
ing typically 30Wof continuous average output power intoan load with less than 0.1% THD+N.
The LM4701 hasan independent smooth transition fade-in/
out mute anda power conserving standby mode which can controlledby external logic.
The performanceof the LM4701, 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
partsare completely safeguardedatthe output against over-
voltage, undervoltage, overloads, including thermal runaway
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 Non-Isolated 9-lead TO-220 package Wide supply range 20V- 66V
Applications TVs Component stereo Compact stereo
Typical Application Connection DiagramDS100835-1
*Optional components dependent upon specific design requirements. Refertothe External Components Description sectionfora component functional
description.
FIGURE1. Typical Audio Amplifier Application Circuit
Plastic PackageDS100835-2
Top View
Order Number LM4701T
SeeNS Package Number TA9A
For Staggered Lead Non-Isolated Package
Onlya 9-Pin PackageAugust 2000
LM4701
Overture
Audio
Power
Amplifier
Series
30W
Audio
Power
Amplifier
with
Mute
and
Standby
Modes
