LM4816

www.DataSheet4U.com LM4816 1W Stereo Audio Amplifier + Adjustable Output Limiter October 2003 LM4816 1W Stereo Audio Amplifier + Adjustable Output Limiter General Description The LM4816 combines a bridged-connected (BTL) stereo audio power amplifier with an adjustable output voltage magnitude limiter. The audio amplifier delivers 1.0W to an 8Ω load with less than 1.0% THD+N while operating on a 5V power supply. With VLIM set to 1.0V, the amplifier outputs are clamped to 6Vp-p, ± 800mV. The LM4816 features an external controlled micropower shutdown mode and thermal shutdown protection. It also utilizes circuitry that reduces “clicks and pops” during device turn-on and return from shutdown. Boomer audio power amplifiers are designed specifically to use few external components and provide high quality output power in a surface mount package. Key Specifications j POUT (BTL): VDD = 5V, THD = 1%, RL = 8Ω j Power supply range j Limiter adjustment range j Shutdown current 1.0W (typ) 3.0V to 5.5V GND to VDD/2 0.06µA (typ) Features n n n n n n Stereo BTL amplifier Adjustable output voltage magnitude limiter “Click and pop” suppression circuitry Unity-gain stable audio amplifiers Thermal shutdown protection circuitry TSSOP (MT) package Applications n n n n Notebook computers Multimedia monitors Desktop computers Portable televisions Typical Application 20033201 Boomer ® is a registered trademark of National Semiconductor Corporation. © 2003 National Semiconductor Corporation...