|
|
PDF LME49810 Data sheet ( Hoja de datos )
| Número de pieza | LME49810 | |
| Descripción | 200V Audio Power Amplifier Driver | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LME49810 (archivo pdf) en la parte inferior de esta página. Total 22 Páginas | ||
|
No Preview Available !
September 2007
www.DataSheet4U.com
LME49810
200V Audio Power Amplifier Driver with Baker Clamp
General Description
The LME49810 is a high fidelity audio power amplifier driver
designed for demanding consumer and pro-audio applica-
tions. Amplifier output power may be scaled by changing the
supply voltage and number of power transistors. The
LME49810’s minimum output current is 50mA. When using a
discrete output stage the LME49810 is capable of delivering
in excess of 300 watts into a single-ended 8Ω load.
Unique to the LME49810 is an internal Baker Clamp. This
clamp insures that the amplifier output does not saturate
when over driven. The resultant “soft clipping” of high level
audio signals suppresses undesirable audio artifacts gener-
ated when conventional solid state amplifiers are driven hard
into clipping.
The LME49810 includes thermal shutdown circuitry that ac-
tivates when the die temperature exceeds 150°C. The
LME49810’s mute function, when activated, mutes the input
drive signal and forces the amplifier output to a quiescent
state.
Key Specifications
■ Wide operating voltage range
■ Slew Rate
■ Output Drive Current
■ PSRR (f = DC)
■ THD+N (f = 1kHz)
Features
■ Very high voltage operation
■ Output clamp logic output
■ Thermal shutdown and mute
■ Customizable external compensation
■ Scalable output power
Applications
■ Guitar amplifiers
■ Powered studio monitors
■ Powered subwoofers
■ Pro audio
■ Audio video receivers
■ High voltage industrial applications
±20V to ±100V
50V/μs (typ)
60mA (typ)
110dB (typ)
0.0007 (typ)
Boomer® is a registered trademark of National Semiconductor Corporation.
Tru-GND is a trademark of National Semiconductor Corporation.
© 2007 National Semiconductor Corporation 202167
www.national.com
1 page  
Absolute Maximum Ratings (Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage |V+| + |V-|
Differential Input Voltage
Common Mode Input Range
Power Dissipation (Note 3)
ESD Susceptibility (Note 4)
ESD Susceptibility (Note 5)
Junction Temperature (TJMAX) (Note 9)
Soldering Information
200V
±6V
0.4VEE to 0.4VCC
4W
1kV
200V
150°C
T Package (10 seconds)
Storage Temperature
Thermal Resistance
θJA
θJC
Operating Ratings
Temperature Range
TMIN ≤ TA ≤ TMAX
Supply Voltage
260°C
ww–w40.D°CattaoS+h1e5e0t°4CU.com
73°C/W
4°C/W
−40°C ≤ TA ≤ +8 5°C
±20V ≤ VSUPPLY ≤ ±100V
Electrical Characteristics VCC = +100V, VEE = –100V (Notes 1, 2)
The following specifications apply for IMUTE = 100μA, unless otherwise specified. Limits apply for TA = 25°C, CC = 10pF, and AV =
29dB.
Symbol
Parameter
Conditions
LME49810
Typical
(Note 6)
Limits
(Notes 7, 8)
Units
(Limits)
ICC
IEE
THD+N
AV
VOM
VNOISE
Quiescent Power Supply Current
Quiescent Power Supply Current
Total Harmonic Distortion + Noise
Open Loop Gain
Output Voltage Swing
VCM = 0V, VO = 0V, IO = 0A
VCM = 0V, VO = 0V, IO = 0A
No Load, BW = 30kHz
VOUT = 30VRMS, f = 1kHz
f = DC
f = 1kHz, VIN = 1mVRMS
THD+N = 0.05%, f = 1kHz
Output Noise
BW = 30kHz,
A-weighted
11
13
0.0007
120
88
67.5
50
34
18 mA (max)
mA (max)
% (max)
dB
dB
V RMS
μV
150 μV (max)
IOUT
IMUTE
Output Current
Current into Mute Pin
Current from Source to Sink Pins
To activate the amplifier
60 50 mA (min)
100
50 μA (min)
200 μA (max)
SR Slew Rate
VIN = 1VP-P,
f = 10kHz square Wave
50 V/μs(min)
VOS
IB
PSRR
Input Offset Voltage
Input Bias Current
Power Supply Rejection Ratio
VCM = 0V, IO= 0mA
VCM = 0V, IO= 0mA
f = DC, Input Referred
1 3 mV (max)
100 200 nA (max)
110 105 dB (min)
VCLIP
Baker Clamp Clipping Voltage
Clip Output
Source pin
Sink pin
97.2
–96.4
95.5
–95.5
V (max)
V (min)
VBC
VBA
IBIAS
Baker Clamp Flag Output Voltage IFLAG = 4.7mA
Bias P&M Pin Open Voltage
BiasP - BiasM
Bias Adjust Function Current
0.4 V
10 V
2.8 mA
5 www.national.com
5 Page 
PSRR vs Frequency
+VCC = –VEE = 100V,
No Filters, Input referred, VRIPPLE = 1VRMS on VEE pin
Mute Attenuation
+VCC = –VEE =
1v0s0IVMUwTEww.DataSheet4U.com
20216727
Output Voltage vs Supply Voltage
20216724
Slew Rate vs Compensation Capacitor
+VCC = –VEE = 100V, VIN = 1.2VP 10kHz squarewave
20216725
Supply Current vs Supply Voltage
20216728
Input Offset Voltage vs Supply Voltage
20216741
11
20216737
www.national.com
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet LME49810.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LME49810 | LME49810 200V Audio Power Amplifier Driver with Baker Clamp (Rev. C) |  Texas Instruments |
| LME49810 | 200V Audio Power Amplifier Driver | National Semiconductor |
| LME49811 | Audio Power Amp Series High Fidelity 200 Volt Power Amp Input Stage w/ Shutdown (Rev. C) | Texas Instruments |
| LME49811 | High Fidelity 200 Volt Power Amplifier Input Stage | National Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |