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LM4700TF Datasheet

  • LM4700TF

  • National Semiconductor [Overture⑩ Audio Power Amplifier Se...

  • 531.66KB

  • NSC

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LM4700
Overture
Audio Power Amplifier Series
30W Audio Power Amplifier with Mute and Standby Modes
March 1998
LM4700
Overture
鈩?/div>
Audio Power Amplifier Series
30W Audio Power Amplifier with
Mute and Standby Modes
General Description
The LM4700 is an audio power amplifier capable of deliver-
ing typically 30W of continuous average output power into an
8鈩?load with less than 0.1% (THD + N).
The LM4700 has an independent smooth transition fade-in/
out mute and a power conserving standby mode which can
be controlled by external logic.
The performance of the LM4700, utilizing its Self Peak In-
stantaneous Temperature (藲Ke) (SPiKe
鈩?/div>
) Protection Cir-
cuitry, places it in a class above discrete and hybrid amplifi-
ers by providing an inherently, dynamically protected Safe
Operating Area (SOA).
SPiKe
Protection means that these
parts are completely safeguarded at the output against over-
voltage, undervoltage, overloads, including thermal runaway
and instantaneous temperature peaks.
Key Specifications
n
THD+N at 1 kHz at continuous average output power of
25W into 8鈩?
0.1% (max)
n
THD+N from 20 Hz to 20 kHz at 30W of continuous
average output power into 8鈩?
0.08% (typ)
n
Standby current:
2.1 mA (typ)
Features
n
n
n
n
n
SPiKe
Protection
Minimal amount of external components necessary
Quiet fade-in/out mute function
Power conserving standby-mode
Isolated 11-lead TO-220 package
Applications
n
Component stereo
n
Compact stereo
Typical Application
Connection Diagram
Isolated Plastic Package
DS012369-2
Top View
Order Number LM4700TF
See NS Package Number TF11B
DS012369-1
*
Optional components dependent upon specific design requirements. Refer
to the External Components Description section for a component functional
description.
FIGURE 1. Typical Audio Amplifier Application Circuit
SPiKe
鈩?/div>
Protection and
Overture
鈩?/div>
are trademarks of National Semiconductor Corporation.
漏 1999 National Semiconductor Corporation
DS012369
www.national.com

LM4700TF 产品属性

  • 1

  • 30W

  • -20°C 到 +85°C

  • 11

  • No SVHC (19-Dec-2011)

  • 30W

  • 18

  • 4700

  • TO-220

  • -20°C

  • 85°C

  • 7.5MHz

  • 1

  • 功率

  • 64V

  • 20V

  • 4700

  • 通孔安装

  • 4ohm

  • 15mV

  • 4700

  • 28V

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