LM389 Datasheet | National Semiconductor

Description The LM389 is an array of three NPN transistors on the same substrate with an audio power amplifier similar to the LM386 The amplifier inputs are ground referenced while the output is automatically biased to one half the supply voltage The gain is internally set at 20 to minimize external parts but the addition of an external resistor and capacitor between pins 4 and 12 will increase the gain to any value up to 200 The three transistors have high gain and excellent matching characteristics They are well suited to a wide variety of applications in DC through VHF systems Low quiescent current drain Voltage gains from 20 to 200 Y Ground referenced input Y Self-centering output quiescent voltage Y Low distortion Transistors Y Operation from 1 m A to 25 m A Y Frequency range from DC to 100 MHz Y Excellent matching Applications Y Y Y Y Y Y Y Features Amplifier Y Battery operation Y Minimum external parts Y Wide supply voltage range AM-FM radios Portable tape recorders Inters Toys and games Walkie-talkies Portable phonographs Power converters Equivalent Schematic and Connection Diagrams TL H 7847 - 1 Dual-In-Line Package TL H 7847 - 2 Order Number LM389N See NS Package Number N18A C1995 National Semiconductor Corporation TL H 7847 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 15V Package Dissipation (Note 1) 1 89W g 0 4V Input Voltage b 65 C to a 150 C Storage Temperature Operating Temperature 0 C to a 70 C Junction Temperature 150 C Lead Temperature (Soldering 10 sec ) 260 C Collector to Emitter Voltage VCEO 12V Collector to Base Voltage VCBO Collector to Substrate Voltage VCIO (Note 2) Collector Current IC Emitter Current IE Base Current IB Power Dissipation (Each Transistor) TA s a 70 C Thermal Resistance i JC i JA 15V 15V 25 m A 25 m A 5 m A 150 m W 24 C W 70 C...