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LM4755TS Datasheet

  • LM4755TS

  • AUDIO AMPLIFIER|DUAL|BIPOLAR|SIP|9PIN|PLASTIC

  • 707.63KB

  • 17頁

  • ETC

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LM4755 Stereo 11W Audio Power Amplifier with Mute
May 2002
LM4755
Stereo 11W Audio Power Amplifier with Mute
General Description
The LM4755 is a stereo audio amplifier capable of delivering
11W per channel of continuous average output power to a
4鈩?load or 7W per channel into 8鈩?using a single 24V supply
at 10% THD+N. The internal mute circuit and pre-set gain
resistors provide for a very economical design solution.
Output power specifications at both 20V and 24V supplies
and low external component count offer high value to con-
sumer electronic manufacturers for stereo TV and compact
stereo applications. The LM4755 is specifically designed for
single supply operation.
n
P
O
at 10% THD+N
@
1kHz into 8鈩?bridged TO-263
package at V
CC
=12V: 5W (typ)
Features
n
n
n
n
n
n
n
n
Drives 4鈩?and 8鈩?loads
Integrated mute function
Internal Gain Resistors
Minimal external components needed
Single supply operation
Internal current limiting and thermal protection
Compact 9-lead TO-220 package
Wide supply range 9V - 40V
Key Specifications
n
Output power at 10% THD with 1kHz into 4鈩?at
V
CC
= 24V: 11W (typ)
n
Output power at 10% THD with 1kHz into 8鈩?at
V
CC
= 24V: 7W (typ)
n
Closed loop gain: 34dB (typ)
n
P
O
at 10% THD+N
@
1kHz into 4鈩?single-ended
TO-263 package at V
CC
=12V: 2.5W (typ)
Applications
n
Stereos TVs
n
Compact stereos
n
Mini component stereos
Typical Application
Connection Diagrams
Plastic Package
DS100059-2
Package Description
Top View
Order Number LM4755T
Package Number TA09A
DS100059-36
DS100059-1
FIGURE 1. Typical Audio Amplifier Application Circuit
Top View
Order Number LM4755TS
Package Number TS9A
漏 2002 National Semiconductor Corporation
DS100059
www.national.com

LM4755TS 產(chǎn)品屬性

  • National Semiconductor (TI)

  • Class-AB

  • 11 W x 2 at 4 Ohms

  • 2-Channel Stereo

  • 34 dB

  • 0.08 %

  • 12 V, 15 V, 18 V, 24 V, 28 V

  • 62500 mW

  • + 85 C

  • SMD/SMT

  • TO-263

  • Tube

  • 8 Ohms

  • Single

  • - 40 C

  • Single

  • Single

  • 32 V

  • 9 V

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