LM380N 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.

LM380N Features

• Wide Supply Voltage Range: 10V-22 V

• Low Quiescent Power Drain: 0.13W (V_S = 18 V)

• Voltage Gain Fixed at 50

• High Peak Current Capability: 1.3 A

• Input Referenced to GND

• High Input lmpedance: 150 kΩ

• Low Distortion

• Quiescent Output Voltage is at One-Half of the Supply Voltage

• Standard Dual-In-Line Package

LM380N Applications

• Phonograph amplifiers

• Intercoms

• Line drivers

• Teaching machine outputs

• Alarms

• Ultrasonic drivers

• TV sound systems

• AM-FM radio

• Small servo drivers

• Power converters