5-W Audio Power Amplifier - LM384

LM384 (ACTIVE)

5-W Audio Power Amplifier

 

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 and sound projector systems. See SNAA086 for circuit details.

Features

  • 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: 150kΩ
  • Low Distortion: 0.25% (PO=4W, RL=8Ω)
  • Quiescent Output Voltage is at One Half of the Supply Voltage
  • 14-Pin PDIP Package

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Parametrics Compare all products in Speaker Amplifier Class AB/Class D

 
Analog Supply (V) (Min)
Analog Supply (V) (Max)
Architecture
Speaker Channels (Max)
Audio Input Type
Load (Min) (ohms)
Iq (Typ) (mA)
Iq (Max) (mA)
THD + N @ 1 kHz (%)
PSRR (dB)
Pin/Package
Package Size: mm2:W x L (PKG)
Operating Temperature Range (C)
Control Interface
Rating
LM384
12   
26   
Class AB   
Mono   
Analog Input   
4   
8.5   
8.5   
0.25   
31   
14PDIP   
See datasheet (PDIP)   
0 to 70   
Hardware   
Catalog   

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