LM4877

LM4877 1 Watt Audio Power Amplifier micro SMD package with Shutdown Logic Low February 2000 LM4877 1 Watt Audio Power Amplifier in micro SMD package with Shutdown Logic Low General Description The LM4877 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 components. Since the LM4877 does not require output coupling capacitors or bootstrap capacitors. It is optimally suited for low-power portable applications. The LM4877 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism. The unity-gain stable LM4877 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 Computers n Low Voltage Audio Systems Typical Application Connection Diagram 8 Bump micro SMD DS101290-23 Top View Order Number LM4877IBP, LM4877IBPX See NS Package Number BPA08B6B DS101290-1 FIGURE 1. Typical Audio Amplifier Application Circuit Boomer ® is a registered trademark of Nat...