LM4911MM/NOPB

The LM4911/LM4911Q is an stereo audio power amplifier capable of delivering 40mW per channel of continuous average power into a 16Ω load or 25mW per channel into a 32Ω load at 1% THD+N from a 3V power supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4911/LM4911Q does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. In addition, the LM4911/LM4911Q may be configured for either single-ended capacitively coupled outputs or for OCL outputs (patent pending). The LM4911/LM4911Q features a low-power consumption shutdown mode and a power mute mode that allows for faster turn on time with less than 1mV voltage change at outputs on release. Additionally, the LM4911/LM4911Q features an internal thermal shutdown protection mechanism. The LM4911/LM4911Q is unity gain stable and may be configured with external gain-setting resistors.A Q-grade version is available for automotive applications. It is AEC-Q100 grade 2 qualified and packaged in a 10–pin MSOP package (LM4911QMM). PSRR at 217Hz and 1kHz65dB (typ)Output Power at 1kHz with VDD = 2.4V, 1% THD+N into a 16Ω load 25mW (typ) Output Power at 1kHz with VDD = 3V, 1% THD+N into a 16Ω load 40mW (typ) Shutdown Current2.0µA (max)Output Voltage change on release fromShutdown VDD = 2.4V, RL = 16Ω (C-Coupled) 1mV (max) Mute Current100µA (max)