TI哪些型号被关注? TI热门产品型号
  • 制造厂商:TI
  • 产品类别:音频
  • 技术类目:音频放大器 - 耳机放大器
  • 功能描述:具有可选电容耦合或 OCL 输出的 40mW 立体声耳机放大器
  • 点击这里打开及下载LM4911的技术文档资料
  • TI代理渠道,提供当日发货、严格的质量标准,满足您的目标价格

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

PSRR at 217Hz and 1kHz

65dB (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 Current

2.0µA (max)

Output Voltage change on release from

Shutdown VDD = 2.4V, RL = 16Ω (C-Coupled)

1mV (max)

Mute Current

100µA (max)


  • OCL or capacitively coupled outputs (patent pending)
  • External gain-setting capability
  • Available in space-saving MSOP and LD packages
  • Ultra low current shutdown mode
  • Mute mode allows fast turn-on (1ms) with less than 1mV change on outputs
  • 2V - 5.5V operation
  • Ultra low noise
  • LM4911QMM is an Automotive Grade product that is AE-Q100 grade 2 qualified.
  • LM4911的参数(英文):
    • Output power (W)
    • 0.04
    • Analog supply (Min) (V)
    • 2
    • Analog supply (Max) (V)
    • 5.5
    • PSRR (dB)
    • 65
    • Rating
    • Catalog
    • Operating temperature range (C)
    • -40 to 85
    • Headphone channels
    • Stereo
    • Volume control
    • No
    • Shutdown current (ISD) (uA)
    • 0.1
    • Architecture
    • Class-AB
    • Iq per channel (Typ) (mA)
    • 1


    LM4911MM/NOPB,工作温度:-40 to 85,封装:VSSOP (DGS)-10,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM4911MM/NOPB的批量USD价格:.691(1000+)


    PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice

    PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

    借助?PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。

    在?PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
    TI代理|TI中国代理 - 国内领先的TI芯片采购平台