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 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.

Also Recommended LM4954 Lower Voltage, Lower Power Consumption,smaller Package MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

Typical Application click for larger image	Block Diagram click for larger image
Typical Performance click for larger image

Datasheet

Title		Size	Date	Other Language
	LM380 2.5W Audio Power Amplifier	272 Kbytes	14-Oct-04	日本語

Featured Application Notes

Title		Size	Date	Other Language
	AN-69: LM380 Power Audio Amplifier	213 Kbytes	4-Nov-95
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Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM380N	SLM	0	44046	0	0	3532500	1	1002356520
LM380N-8	SLM	0	44046	0	0	3532500	1	1002356520

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.

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