LM384 Datasheet | National Semiconductor

Description The LM384 is a power audio amplifier for consumer application. In order to hold system cost to a minimum, gain is internally fixed at 34 d B. A unique input stage allows inputs to be ground referenced. The output is automatically self-centering 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 prising a heat sink. This makes the device easy to use in standard p-c layout. Uses include simple phonograph amplifiers, inters, line drivers, teaching machine outputs, alarms, ultrasonic drivers, TV sound systems, AM-FM radio, sound projector systems, etc. See AN-69 for circuit details. Features Wide supply voltage range Low quiescent power drain Voltage gain fixed at 50 High peak current capability Input referenced to GND High input impedance Low distortion Quiescent output voltage is at one half of the supply voltage n Standard dual-in-line package n n n n n n n n Schematic Diagram e Data She . DS007843-3 © 1999 National Semiconductor Corporation DS007843 .national. . Data Sheet 4 U . .. Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Peak Current Power Dissipation (See (Notes 4, 5)) Input Voltage Storage Temperature 28V 1.3A 1.67W ± 0.5V - 65˚C to +150˚C Operating Temperature Lead Temperature (Soldering, 10 sec.) Thermal Resistance θJC θJA 0˚C to +70˚C 260˚C 30˚C/W 79˚C/W Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Electrical Characteristics (Note 2) Symbol ZIN IBIAS AV POUT IQ VOUT Q BW V+ ISC PSRRRTO THD Bias Current Gain Output Power Quiescent Supply...