LM4810 Datasheet | National Semiconductor

Description The LM4810 is a dual audio power amplifier capable of delivering 105m W per channel of continuous average power into a 16Ω load with 0.1% (THD+N) 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 LM4810 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. The unity-gain stable LM4810 can be configured by external gain-setting resistors. The LM4810 features an externally controlled, active-high, micropower consumption shutdown mode, as well as an internal thermal shutdown protection mechanism. n THD+N at 1k Hz, 70m W continuous average power into 32Ω 0.1% (typ) n Shutdown Current 0.4µA (typ) Features n n n n n n Active-high shutdown mode LLP, MSOP, and SO surface mount packaging "Click and Pop" suppression circuitry Low shutdown current No bootstrap capacitors required Unity-gain stable Applications n n n n Cellular Phones Personal puters Microphone Preamplifier PDA’s Key Specifications n THD+N at 1k Hz, 105m W continuous average power into 16Ω 0.1% (typ) Typical Application - 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. © 2002 National Semiconductor Corporation DS200089 .national. Connection Diagrams MSOP Package SO Package Top View Order Number LM4810MM See NS Package Number MUA08A Top View Order Number LM4810MA See NS Package Number M08A MSOP Marking LLP Package Top View Order Number LM4810LD See NS Package Number LDA08B SO Marking LLP Marking .national. Absolute Maximum Ratings (Note 2) θJC (SO) θJA (MSOP) θJC (MSOP) θJA (LLP) θJA (LLP) θJC (LLP) 35˚C/W 210˚C/W...