LM4862 Datasheet | National Semiconductor

Description The LM4862 is a bridge-connected audio power amplifier capable of delivering typically 675 m W of continuous average power to an 8Ω load with 1% (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 LM4862 does not require output coupling capacitors, bootstrap capacitors, or snubber networks, it is optimally suited for low-power portable systems. The LM4862 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism. The unity-gain stable LM4862 can be configured by external gain-setting resistors. Key Specifications n THD at 500 m W continuous average output power at 1 k Hz into 8Ω n Output power at 10% THD+N at 1 k Hz into 8Ω n Shutdown Current 1% (max) 825 m W (typ) 0.7 µA (typ) Features n No output coupling capacitors, bootstrap capacitors or snubber circuits are necessary n Small Outline or DIP packaging n Unity-gain stable n External gain configuration capability n Pin patible with LM4861 Applications n Portable puters n Cellular Phones n Toys and Games Typical Application Connection Diagram Small Outline and DIP Package DS012342-2 Top View Order Number LM4862M, LM4862N See NS Package Number M08A or N08E DS012342-1 - Refer to the Application Information section for information concerning proper selection of the input coupling capacitor. FIGURE 1. Typical Audio Amplifier Application Circuit Boomer ® is a registered trademark of National Semiconductor Corporation. © 1999 National Semiconductor Corporation DS012342 .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)...