LM1875 Datasheet | National Semiconductor

Description The LM1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications. The LM1875 delivers 20 watts into a 4Ω or 8Ω load on ± 25V supplies. Using an 8Ω load and ± 30V supplies, over 30 watts of power may be delivered. The amplifier is designed to operate with a minimum of external ponents. Device overload protection consists of both internal current limit and thermal shutdown. The LM1875 design takes advantage of advanced circuit techniques and processing to achieve extremely low distortion levels even at high output power levels. Other outstanding features include high gain, fast slew rate and a wide power bandwidth, large output voltage swing, high current capability, and a very wide supply range. The amplifier is internally pensated and stable for gains of 10 or greater. Features n n n n n n n n n n n Up to 30 watts output power AVO typically 90 d B Low distortion: 0.015%, 1 k Hz, 20 W Wide power bandwidth: 70 k Hz Protection for AC and DC short circuits to ground Thermal protection with parole circuit High current capability: 4A Wide supply range 16V-60V Internal output protection diodes 94 d B ripple rejection Plastic power package TO-220 Applications n n n n n High performance audio systems Bridge amplifiers Stereo phonographs Servo amplifiers Instrument systems Connection Diagram Typical Applications DS005030-1 Front View NSC Package Number T05A T05D T05E TA05B Package For Straight Leads For Stagger Bend For 90˚ Stagger Bend For 90˚ Stagger Bend Ordering Info LM1875T SL108949 LM1875T LB03 LM1875T LB05 LM1875T LB02 DS005030-2 © 1999 National Semiconductor Corporation DS005030 .national. Absolute Maximum Ratings (Note 1) Supply Voltage Input Voltage Storage Temperature Junction Temperature 60V - VEE to VCC - 65˚C to + 150˚C 150˚C Lead Temperature (Soldering, 10 seconds) θJC θJA 260˚C 3˚C 73˚C Electrical Characteristics VCC = +25V, - VEE = - 25V, TAMBIENT = 25˚C, RL = 8Ω, AV = 20...