LM4865 Datasheet | National Semiconductor

Description The LM4865 is a mono bridged audio power amplifier with DC volume control, capable of delivering 750 m W of continuous average power into an 8Ω load with less than 1% THD from a 5V power supply. Switching between bridged speaker mode and headphone (single ended) mode is acplished via a headphone sense pin. In addition, LM4865 is set into low current consumption shutdown mode (0.7 µA typical) by lowering the DC Vol/SD pin to below 0.3V. Boomer audio power amplifiers are designed specifically to provide high power audio output, with quality sound, from a low supply voltage source while requiring the minimal amount of external ponents. n Hand held radio n Other portable audio devices Key Specifications n PO at 1.0% THD+N into 8Ω (SOP): 750 m W (typ) n PO at 10% THD+N into 8Ω (SOP): 1W (typ) n Shutdown Current: 0.7 µA (typ) Features n n n n n DC volume control Headphone amplifier mode “Click and pop” suppression Shutdown control when volume control pin is low Thermal shutdown protection Applications n GSM phones and accessories, DECT, office phones Typical Application Connection Diagram MSOP, SOP Package DS101025-2 Top View Order Number LM4865M, LM4865MM See NS Package Number M08A, MUA08A DS101025-1 FIGURE 1. Typical Audio Amplifier Application Circuit BOOMER™ is a trademark of National Semiconductor Corporation. © 1999 National Semiconductor Corporation DS101025 .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 2000V 200V 150˚C Soldering Information Vapor Phase (60 sec.) Infrared (15 sec.) Thermal Resistance θJC (SOP) θJA (SOP) θJC (MSOP) θJA (MSOP) 215˚C 220˚C 35˚C/W...