2.5W Audio Power Amplifier

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Product details

Parameters

Audio input type Analog Input Architecture Class-AB Speaker channels (Max) Mono Power stage supply (Max) (V) 22 Power stage supply (Min) (V) 10 Load (Min) (ohms) 4 Output power (W) 2.5 THD + N @ 1 kHz (%) 0.2 Iq (Typ) (mA) 7 Control interface Hardware Closed/open loop Open Analog supply (Min) (V) 10 Analog supply (Max) (V) 22 PSRR (dB) 38 Operating temperature range (C) 0 to 70 open-in-new Find other Speaker amps

Package | Pins | Size

PDIP (NFF) 14 52 mm² 6.35 x 8.26 PDIP (P) 8 93 mm² 9.81 x 9.43 open-in-new Find other Speaker amps

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: 150kΩ
  • Low Distortion
  • Quiescent Output Voltage is at One-Half of the Supply Voltage
  • Standard Dual-In-Line Package

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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 SNAA086.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet LM380 2.5W Audio Power Amplifier datasheet (Rev. C) Apr. 04, 2013
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug. 26, 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun. 27, 2019
Application note AN-146 FM Remote Speaker System May 14, 2004
Application note AN-69 LM380 Power Audio Amplifier May 14, 2004

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CAD/CAE symbols

Package Pins Download
PDIP (NFF) 14 View options
PDIP (P) 8 View options

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