LME49811TB/NOPB National Semiconductor, LME49811TB/NOPB Datasheet

IC AMP AUDIO PWR 500W TO247-15

LME49811TB/NOPB

Manufacturer Part Number
LME49811TB/NOPB
Description
IC AMP AUDIO PWR 500W TO247-15
Manufacturer
National Semiconductor
Type
Class ABr
Datasheet

Specifications of LME49811TB/NOPB

Output Type
1-Channel (Mono)
Max Output Power X Channels @ Load
500W x 1 @ 8 Ohm
Voltage - Supply
40 V ~ 200 V, ±20 V ~ 100 V
Features
Shutdown, Thermal Protection
Mounting Type
Through Hole
Package / Case
TO-247-15 (Bent and Staggered Leads)
Amplifier Class
AB
No. Of Channels
1
Supply Voltage Range
± 20V To ± 100V
Load Impedance
8ohm
Operating Temperature Range
-40°C To +85°C
Amplifier Case Style
TO-247
No. Of Pins
15
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LME49811TB

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LME49811TB/NOPB
Manufacturer:
TE
Quantity:
1 200
© 2009 National Semiconductor Corporation
High Fidelity 200 Volt Power Amplifier Input Stage with
Shutdown
General Description
The LME49811 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
LME49811 is capable of driving an output stage to deliver in
excess of 500 watts single-ended into an 8 ohm load in the
presence of 10% high line headroom and 20% supply regu-
lation.
The LME49811 includes thermal shut down circuitry that ac-
tivates when the die temperature exceeds 150°C. The
LME49811's shutdown function when activated, forces the
LME49811 into shutdown state.
Typical Application
Overture® is a registered trademark of National Semiconductor Corporation.
FIGURE 1. Typical Audio Amplifier Application Circuit
Audio Power Amplifier Series
300048
LME49811
Key Specifications
Features
Applications
■ 
■ 
■ 
■ 
Very high voltage operation
Scalable output power
Minimum external components
External compensation
Thermal Shutdown
Powered subwoofers
Pro audio
Powered studio monitors
Audio video receivers
Guitar Amplifiers
High voltage industrial applications
Wide operating voltage range
PSRR (f = DC)
THD+N (f = 1kHz)
Output Drive Current
30004862
November 11, 2009
0.00035% (typ)
±20V to ±100V
www.national.com
115dB (typ)
9mA

Related parts for LME49811TB/NOPB

LME49811TB/NOPB Summary of contents

Page 1

... The LME49811's shutdown function when activated, forces the LME49811 into shutdown state. Typical Application FIGURE 1. Typical Audio Amplifier Application Circuit Overture® registered trademark of National Semiconductor Corporation. © 2009 National Semiconductor Corporation LME49811 Audio Power Amplifier Series Key Specifications ■ ...

Page 2

Typical Audio Amplifier Application Circuit 2 30004862 ...

Page 3

Connection Diagram Pin Descriptions Pin Pin Name Top View See Order Number LME49811TB NS = National Logo U = Fabrication plant code Z = Assembly ...

Page 4

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage | Differential Input Voltage Common Mode Input Range Power Dissipation (Note 3) ESD Rating(Note 4) ESD Rating (Note 5) Junction Temperature (T ) (Note 8) JMAX ...

Page 5

Electrical Characteristics +V The following specifications apply for I Symbol Parameter Total Quiescent Power Supply I CC Current Total Quiescent Power Supply I EE Current Total Harmonic Distortion + THD+N Noise A Closed Loop Voltage Gain V A Open Loop ...

Page 6

Typical Performance Characteristics for LME49811 (Note 9) THD+N vs Frequency +V = –V = 100V THD+N vs Frequency +V = –V = 50V THD+N vs Frequency +V = –V = 20V ...

Page 7

THD+N vs Output Voltage +V = –V = 50V 20Hz CC EE 30004879 THD+N vs Output Voltage +V = –V = 50V 1kHz CC EE 30004878 THD+N vs Output Voltage +V = –V = 50V, f ...

Page 8

THD+N vs Output Voltage +V = –V = 20V 20kHz CC EE THD+N vs Output Voltage +V = –V = 20V 20kHz CC EE Closed Loop Frequency Response +V = –V = 100V ...

Page 9

PSRR vs Frequency +V = –V = 100V, No Filters CC EE Input Referred RIPPLE RMS CC PSRR vs Frequency +V = –V = 100V, No Filters CC EE Input Referred ...

Page 10

Test Circuit www.national.com FIGURE 3. Test Circuit 10 30004861 ...

Page 11

Application Information SHUTDOWN FUNCTION The shutdown function of the LME49811 is controlled by the amount of current that flows into the shutdown pin. If there is less than 1mA of current flowing into the shutdown pin, the part will be ...

Page 12

With large values of R oscillations may be observed on the IN outputs when the inputs are left floating. Decreasing the value not letting the inputs float will remove the oscillations the value of R ...

Page 13

Demonstration Board Layout Silkscreen Layer Top Layer 13 300048f5 300048f6 www.national.com ...

Page 14

Bottom Layer 14 300048f4 ...

Page 15

Revision History Rev 1.0 1.01 1.02 Date 12/19/07 Initial release. 01/04/08 Edited the project title (replaced “Driver” with “Power Amplifier Input Stage”. 11/11/09 Fixed the spacing between the equations and 6 to the units measures. 15 Description ...

Page 16

Physical Dimensions www.national.com inches (millimeters) unless otherwise noted Non-Isolated TO–247 15 Lead Package NS Package Number TB15A 16 ...

Page 17

Notes 17 www.national.com ...

Page 18

... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...

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