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LM4872IBPX Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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LM4872IBPX Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 14 page  LM4872 1 Watt Audio Power Amplifier in micro SMD package General Description The LM4872 is a bridge-connected audio power amplifier ca- pable of delivering1Wof continuous average power to an 8 Ω load with less than .2% (THD) from a 5V power supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4872 does not require output coupling capacitors or bootstrap capacitors. It is opti- mally suited for low-power portable applications. The LM4872 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism. The unity-gain stable LM4872 can be configured by external gain-setting resistors. Key Specifications n Power Output at 0.2% THD 1 W (typ) n Shutdown Current 0.01 µA (typ) Features n micro SMD package (see App. note AN-1112) n 5V - 2V operation n No output coupling capacitors or bootstrap capacitors. n Unity-gain stable n External gain configuration capability Applications n Cellular Phones n Portable Computers n Low Voltage Audio Systems Typical Application Connection Diagram Boomer® is a registered trademark of National Semiconductor Corporation. DS101230-1 FIGURE 1. Typical Audio Amplifier Application Circuit 8 Bump micro SMD DS101230-23 Top View Order Number LM4872IBP, LM4872IBPX See NS Package Number BPA08B6B February 2000 © 2000 National Semiconductor Corporation DS101230 www.national.com |
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