LM4880 Datasheet | National Semiconductor

Description The LM4880 is a dual audio power amplifier capable of delivering typically 250 m W per channel of continuous average power to an 8Ω load with 0.1% (THD) using a 5V power supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external ponents using surface mount packaging. Since the LM4880 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. The LM4880 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism. The unity-gain stable LM4880 can be configured by external gain-setting resistors. n THD at 1 k Hz at 85 m W continuous average output power into 32Ω: 0.1% (typ) n Output power at 10% THD + N at 1 k Hz into 8Ω: 325 m W (typ) n Shutdown Current: 0.7 µA (typ) Features n No bootstrap capacitors or snubber circuits are necessary n Small Outline (SO) and DIP packaging n Unity-gain stable n External gain configuration capability Applications n Headphone Amplifier n Personal puters n CD-ROM Players Key Specifications n THD at 1 k Hz at 200 m W continuous average output power into 8Ω: 0.1% (max) Typical Application DS012343-1 - Refer to the Application Information section for information concerning proper selection of the input and output coupling capacitors. FIGURE 1. Typical Audio Amplifier Application Circuit Boomer ® is a registered trademark of National Semiconductor Corporation. © 1999 National Semiconductor Corporation DS012343 .national. Connection Diagram Small Outline and DIP Packages DS012343-2 Top View Order Number LM4880M or LM4880N See NS Package Number M08A for SO or NS Package Number N08E for DIP .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...