LM390 Datasheet | National Semiconductor

Description The LM390 Power Audio Amplifier is optimized for 6V 7 5V 9V operation into low impedance loads The gain is internally set at 20 to keep the external part count low but the addition of an external resistor and capacitor between pins 2 and 6 wil increase the gain to any value up to 200 The inputs are ground referenced while the output is automatically biased to one half the supply voltage Self-centering output quiescent voltage Variable voltage gain Low distortion Fourteen pin dual-in-line package Applications Features Y Y Y Y Y Y Y Y Y Y Y Battery operation 1W output power Minimum external parts Excellent supply rejection Ground referenced input AM-FM radio amplifiers Portable tape player amplifiers Inters TV sound systems Lamp drivers Line drivers Ultrasonic drivers Small servo drivers Power converters Equivalent Schematic and Connection Diagrams Dual-In-Line Package TL H 7848 - 2 Order Number LM390N See NS Package Number N14A TL H 7848 - 1 C1995 National Semiconductor Corporation TL H 7848 RRD-B30M115 Printed in U S A .. Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage Package Dissipation 14-Pin DIP (Note 1) Input Voltage Storage Temperature 10V 8 3W g 0 4V Operating Temperature Junction Temperature Lead Temperature (Soldering 10 sec ) Thermal Resistance i JC i JA 0 C to a 70 C 150 C 260 C 30 C W 79 C W b 65 C to a 150 C Electrical Characteristics TA e 25 C (Figure 1) Symbol VS IQ POUT AV BW THD PSRR Parameter Operating Supply Voltage Quiescent Current Output Power Voltage Gain Bandwidth Total Harmonic Distortion Power Supply Rejection Ratio VS e 6V VIN e 0 VS e 6V RL e 4X THD e 10% VS e 6V f e 1 k Hz 10 m F from Pin 2 to 6 VS e 6V Pins 2 and 6 Open VS e 6V RL e 4X POUT e 500 m W f e 1 k Hz Pins 2 and 6 Open VS e 6V f e 1 k Hz CBYPASS e 10 m F Pins 2 and 6 Open Referred to Output...