Packaging information
| Package | Pins VSSOP (DGS) | 10 |
| Operating temperature range (°C) -40 to 105 |
| Package qty | Carrier 1,000 | SMALL T&R |
Features for the LM4911Q-Q1
Description for the LM4911Q-Q1
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).
Key Specifications
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PSRR at 217Hz and 1kHz |
65dB (typ) |
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Output Power at 1kHz with VDD = 2.4V, 1% THD+N into a 16Ω load |
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Output Power at 1kHz with VDD = 3V, 1% THD+N into a 16Ω load |
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Shutdown Current |
2.0µA (max) |
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Output Voltage change on release from Shutdown VDD = 2.4V, RL = 16Ω (C-Coupled) |
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Mute Current |
100µA (max) |