LM4872 Datasheet | National Semiconductor

Description The LM4872 is a bridge-connected audio power amplifier capable of delivering 1 W of continuous average power to an 8Ω 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 ponents. Since the LM4872 does not require output coupling capacitors or bootstrap capacitors. It is optimally 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 n Shutdown Current 1 W (typ) 0.01 µA (typ) Features n n n n n micro SMD package (see App. note AN-1112) 5V - 2V operation No output coupling capacitors or bootstrap capacitors. Unity-gain stable External gain configuration capability Applications n Cellular Phones n Portable puters n Low Voltage Audio Systems Typical Application Connection Diagram 8 Bump micro SMD DS101230-23 Top View Order Number LM4872IBP, LM4872IBPX See NS Package Number BPA08B6B DS101230-1 FIGURE 1. Typical Audio Amplifier Application Circuit Boomer ® is a registered trademark of National Semiconductor Corporation. © 2000 National Semiconductor Corporation DS101230 .national. Absolute Maximum Ratings (Note 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Storage Temperature Input Voltage Power Dissipation (Note 3) ESD Susceptibility (Note 4) ESD Susceptibility (Note 5) Junction Temperature 6.0V - 65˚C to +150˚C - 0.3V to VDD +0.3V Internally Limited 2500V 250V 150˚C Soldering Information See AN-1112 ″Micro-SMD Wafers Level Chip Scale Package″. Operating Ratings Temperature Range TMIN ≤ TA ≤ TMAX Supply Voltage - 40˚C ≤...