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Details, datasheet, quote on part number:LM384N
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| Part: | LM384N |
| Category: | Multimedia => Audio => Amplifiers => Power Amplifiers => Overture Audio Power Amplifiers |
| Description: | LM384 - 5-W Audio Power Amplifier, Package: Mdip, Pin Nb=14 |
| Company: | National Semiconductor Corporation |
| Datasheet: | Download LM384N datasheet File size : 156 kB |
| Request For quote: | Find where to buy LM384N
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Datasheet text preview:
LM384 5W Audio Power Amplifier
August 2000
LM384 5W Audio Power Amplifier
General Description
The LM384 is a power audio amplifier for consumer applications. In order to hold system cost to a minimum, gain is internally fixed at 34 dB. A unique input stage allows ground referenced input signals. The output automatically self-centers to one-half the supply voltage. The output is short-circuit proof with internal thermal limiting. The package outline is standard dual-in-line. A copper lead frame is used with the center three pins on either side comprising a heat sink. This makes the device easy to use in standard p-c layout. Uses include simple phonograph amplifiers, intercoms, line drivers, teaching machine outputs, alarms, ultrasonic drivers, TV sound systems, AM-FM radio, sound projector systems, etc. See AN-69 for circuit details.
Features
n n n n n n n n Wide supply voltage range: 12V to 26V Low quiescent power drain Voltage gain fixed at 50 High peak current capability: 1.3A Input referenced to GND High input impedance: 150k Low distortion: 0.25% (PO = 4W, RL = 8) Quiescent output voltage is at one half of the supply voltage n Standard dual-in-line package
Schematic Diagram
DS007843-3
© 2000 National Semiconductor Corporation
DS007843
www.national.com
LM384
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Peak Current Power Dissipation (See (Notes 4, 5)) Input Voltage Storage Temperature 28V 1.3A 1.67W ± 0.5V -65°C to +150°C
Operating Temperature Lead Temperature (Soldering, 10 sec.) Thermal Resistance JC JA
0°C to +70°C 260°C 30°C/W 79°C/W
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits.
Electrical Characteristics (Note 2)
Symbol ZIN IBIAS AV POUT IQ VOUT Q BW V+ ISC PSRRRTO THD Bias Current Gain Output Power Quiescent Supply Current Quiescent Output Voltage Bandwidth Supply Voltage Short Circuit Current (Note 6) Power Supply Rejection Ratio (Note 3) ) Total Harmonic Distortion POUT = 4W, RL = 8 0.25 1.0 %
Note 2: V+ = 22V and TA = 25°C operating with a Staver V7 heat sink for 30 seconds. Note 3: Rejection ratio referred to the output with CBYPASS = 5 µF, freq = 120 Hz. Note 4: The maximum junction temperature of the LM384 is 150°C. Note 5: The package is to be derated at 15°C/W junction to heat sink pins. Note 6: Output is fully protected against a shorted speaker condition at all voltages up to 22V.
Parameter Input Resistance
Conditions Inputs Floating
Min
Typ 150 100
Max
Units k nA
40 THD = 10%, RL = 8 5
50 5.5 8.5 11
60 25
V/V W mA V kHz
POUT = 2W, RL = 8 12
450 26 1.3 31
V A dB
Heat Sink Dimensions
Staver "V7" Heat Sink
DS007843-4
Staver Company 41 Saxon Ave. P.O. Drawer H Bay Shore, N.Y. Tel: (516) 666-8000
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LM384
Typical Performance Characteristics
Device Dissipation vs Ambient Temperature Thermal Resistance vs Square Inches Supply Decoupling vs Frequency
DS007843-10 DS007843-11
DS007843-12
Total Harmonic Distortion vs Output Power
Output Voltage Gain vs Frequency
Total Harmonic Distortion vs Frequency
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Power Supply Current vs Supply Voltage
Device Dissipation vs Output Power -- 16 Load
Device Dissipation vs Output Power -- 8 Load
DS007843-16
DS007843-17
DS007843-18
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