LM380 - 2.5W Audio Power Amplifier
Datasheet Packaging Samples & Pricing Reliability Application Notes Knowledge Base

Features
Wide supply voltage range: 10V-22V
Low quiescent power drain: 0.13W (VS= 18V)
Voltage gain fixed at 50
High peak current capability: 1.3A
Input referenced to GND
High input impedance: 150k
Low distortion
Quiescent output voltage is at one-half of the supply voltage
Standard dual-in-line package

General Description


The LM380 is a power audio amplifier for consumer applications. More...


  Typical Application
click for larger image


ParametersValues
Channels 1 Channels
Mono/Stereo Mono
User Supply 18 Volt
Power@ 8Ohms, 1% THD 4 Watt
Power@ 8Ohms, 10% THD 6 Watt
Temperature Min 0 deg C
Temperature Max 70 deg C


Typical Performance


click for larger image


  Also Recommended
LM4954Lower Voltage, Lower Power Consumption,smaller Package
Additional Resources
Application Notes


Block Diagram


click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM380 2.5W Audio Power Amplifier 272
Kbytes
14-Oct-04 Download
LM380 2.5W Audio Power Amplifier (Japanese)
132 Kbytes   Download

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Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders
Budgetary PricingStd
Pack
Size
Package
Marking
Format
TypePinsSpec.MSL
Rating
Peak
Reflow
RoHS
Report
CAD
Symbols
WeeksQtyQty$US each
LM380N-8MDIP8NOPB1NARoHS N/A Full productionN/A
Samples
Buy Now
1K+$0.50rail
of
40
NSUZXYTTE#
LM
380N-8
6 weeks5000
LM380NMDIP14NOPB
STD
1
1
NA
NA
RoHS N/A Full productionN/A
Samples
Buy Now
1K+$0.56rail
of
25
NSUZXYYTTE#
LM380N
8 weeks2000

General Description


The LM380 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. The LM380N uses a copper lead frame. The center three pins on either side comprise a heat sink. This makes the device easy to use in standard PC layouts.

Uses include simple phonograph amplifiers, intercoms, line drivers, teaching machine outputs, alarms, ultrasonic drivers, TV sound systems, AM-FM radio, small servo drivers, power converters, etc.

A selected part for more power on higher supply voltages is available as the LM384. For more information see AN-69.

Reliability Metrics


Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM380NSLM04404600353250011002356520
LM380N-8SLM04404600353250011002356520

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-69: LM380 Power Audio Amplifier 213
Kbytes
4-Nov-95 Download
AN-146: AN-146 FM Remote Speaker System 134
Kbytes
4-Oct-04 Download

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More Application Notes


TitleSize in Kbytes Date Click link below to Download
AN-715: Application Note 715 LM385 Feedback Provides Regulator Isolation 50
Kbytes
3-Oct-02 Download
AN-147: AN-147 Low Cost IC Stereo Receiver 140
Kbytes
4-Oct-04 Download
AN-777: Application Note 777 LM2577 Three Output, Isolated Flyback Regulator 112
Kbytes
26-Sep-02 Download
AN-460: Application Note 460 LM34/LM35 Precision Monolithic Temperature Sensors 306
Kbytes
20-Sep-02 Download
AN-460 (Japanese): Application Note 460 LM34/LM35 Precision Monolithic Temperature Sensors
322 Kbytes   Download
AN-242: Application Note 242 Applying a New Precision Op Amp 383
Kbytes
4-Oct-04 Download
AN-263: Application Note 263 Sine Wave Generation Techniques 350
Kbytes
26-May-09 Download
AN-286: Application Note 286 Applications of the LM392 Comparator Op Amp IC 135
Kbytes
2-Oct-02 Download
AN-256: Application Note 256 Circuitry for Inexpensive Relative Humidity Measurement 119
Kbytes
2-Oct-02 Download
AN-104: Application Note 104 Noise Specs Confusing? 208
Kbytes
14-Oct-02 Download
AN-284: Application Note 284 Single-Supply Applications of CMOS MICRODACs 121
Kbytes
3-Oct-02 Download
AN-274: Application Note 274 CMOS A/D Converter Interfaces Easily with Many Microprocessors 73
Kbytes
3-Oct-02 Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 7-Nov-2009]