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Input Stage. LME49830 Datasheet

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Input Stage. LME49830 Datasheet






LME49830 Stage. Datasheet pdf. Equivalent




LME49830 Stage. Datasheet pdf. Equivalent





Part

LME49830

Description

Mono High Fidelity 200 Volt MOSFET Power Amplifier Input Stage



Feature


LME49830 Mono High Fidelity 200 Volt MOS FET Power Amplifier Input Stage with Mu te www.DataSheet4U.com January 22, 20 08 LME49830 Mono High Fidelity 200 Vol t MOSFET Power Amplifier Input Stage wi th Mute General Description The LME4983 0 is a high fidelity audio power amplif ier input stage designed for demanding consumer and pro-audio applications. Am plifier output pow.
Manufacture

National Semiconductor

Datasheet
Download LME49830 Datasheet


National Semiconductor LME49830

LME49830; er may be scaled by changing the supply voltage and number of output devices. T he LME49830 is capable of driving an ou tput stage in excess of 300 W single-en ded into an 8Ω load in the presence o f 10% high line headroom and 20% supply regulation. The LME49830 includes inte rnal thermal shut down circuitry that a ctivates when the LME49830 die temperat ure exceeds 150°C. T.


National Semiconductor LME49830

he LME49830 has a mute function that mut es the input drive signal and forces th e amplifier output to a quiescent state . The LME49830 has high drive current, 56mA typical, and high output voltage s wing for maximum flexibility in output stage choice. With a bias voltage range up to 16V the LME49830 can be used to drive MOSFET output stages using a wide selection of MOSF.


National Semiconductor LME49830

ETs. The LME49830 has a wide operating s upply range of ±20V to ±100V, which a llows lower cost, unregulated power sup plies to be used. Key Specifications  Wide operating Voltage range ■ Output Voltage Noise   (BW = 30kHz) ■ PSRR (DC) ■ Slew Rate ■ T HD+N (f = 1kHz) ±20V to ±100V 44μV ( typ) 105dB (typ) 39V/μs (typ) 0.0006% (typ) Features ■ High output current and volt.

Part

LME49830

Description

Mono High Fidelity 200 Volt MOSFET Power Amplifier Input Stage



Feature


LME49830 Mono High Fidelity 200 Volt MOS FET Power Amplifier Input Stage with Mu te www.DataSheet4U.com January 22, 20 08 LME49830 Mono High Fidelity 200 Vol t MOSFET Power Amplifier Input Stage wi th Mute General Description The LME4983 0 is a high fidelity audio power amplif ier input stage designed for demanding consumer and pro-audio applications. Am plifier output pow.
Manufacture

National Semiconductor

Datasheet
Download LME49830 Datasheet




 LME49830
January 22, 2008
www.DataSheet4U.com
LME49830
Mono High Fidelity 200 Volt MOSFET Power Amplifier Input
Stage with Mute
General Description
The LME49830 is a high fidelity audio power amplifier input
stage designed for demanding consumer and pro-audio ap-
plications. Amplifier output power may be scaled by changing
the supply voltage and number of output devices. The
LME49830 is capable of driving an output stage in excess of
300 W single-ended into an 8load in the presence of 10%
high line headroom and 20% supply regulation.
The LME49830 includes internal thermal shut down circuitry
that activates when the LME49830 die temperature exceeds
150°C. The LME49830 has a mute function that mutes the
input drive signal and forces the amplifier output to a quies-
cent state.
The LME49830 has high drive current, 56mA typical, and high
output voltage swing for maximum flexibility in output stage
choice. With a bias voltage range up to 16V the LME49830
can be used to drive MOSFET output stages using a wide
selection of MOSFETs.
The LME49830 has a wide operating supply range of ±20V
to ±100V, which allows lower cost, unregulated power sup-
plies to be used.
Key Specifications
■ Wide operating Voltage range
■ Output Voltage Noise
(BW = 30kHz)
■ PSRR (DC)
■ Slew Rate
■ THD+N (f = 1kHz)
±20V to ±100V
44μV (typ)
105dB (typ)
39V/μs (typ)
0.0006% (typ)
Features
High output current and voltage for use with MOSFET
output stages
Very high voltage range: ±20V - ±100V
Scalable output power
Minimum external components
External compensation
Thermal shutdown of input stage
Mute control
Applications
AV receivers
Audiophile power amps
Pro Audio
High voltage industrial applications
Overture® is a registered trademark of National Semiconductor Corporation.
© 2008 National Semiconductor Corporation 300050
www.national.com




 LME49830
Typical Application
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FIGURE 1. Typical Audio Amplifier Application Circuit
30005090
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2




 LME49830
Connection Diagram
Plastic Package (Note 8)
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Pin Descriptions
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Top View
Order Number LME49830TB
See NS Package Number TB15A
N = National logo
U = Fabrication plant code
Z = Assembly plant code
XY = 2 Digit date code
TT = Die traceability
TB = Package code
30005049
Pin Name
NC
Mute
GND
IN+
IN-
Comp
NC
Osense
NC
-VEE
BiasM
BiasP
POUT
NOUT
+VCC
Description
No Connection, Pin electrically isolated
Mute Control
Device Ground
Non-inverting input
Inverting input
External Compensation Connection
No Connection, Pin electrically isolated
Output Sense
No Connection, Pin electrically isolated
Negative Power Supply
Negative External Bias Control
Positive External Bias Control
P-channel MOSFET Output
N-channel MOSFET Output
Positive Power Supply
3 www.national.com






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