제품 상세 정보

Output power (W) 0.04 Analog supply (min) (V) 2 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 16 PSRR (dB) 65 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.1 Architecture Class-AB Iq per channel (typ) (mA) 1
Output power (W) 0.04 Analog supply (min) (V) 2 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 16 PSRR (dB) 65 Rating Catalog Operating temperature range (°C) -40 to 85 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.1 Architecture Class-AB Iq per channel (typ) (mA) 1
VSSOP (DGS) 10 14.7 mm² 3 x 4.9

  • 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.

  • 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.

  • 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)


    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)


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    기술 문서

    star =TI에서 선정한 이 제품의 인기 문서
    검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
    모두 보기3
    유형 직함 날짜
    * Data sheet LM4911/911Q Stereo 40mW Low Noise HP Amp w/Selectable Cap Coupled or OCL Out datasheet (Rev. M) 2011/06/08
    Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 2019/08/26
    Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 2019/06/27

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    TI용 PSpice®는 아날로그 회로의 기능을 평가하는 데 사용되는 설계 및 시뮬레이션 환경입니다. 완전한 기능을 갖춘 이 설계 및 시뮬레이션 제품군은 Cadence®의 아날로그 분석 엔진을 사용합니다. 무료로 제공되는 TI용 PSpice에는 아날로그 및 전력 포트폴리오뿐 아니라 아날로그 행동 모델에 이르기까지 업계에서 가장 방대한 모델 라이브러리 중 하나가 포함되어 있습니다.

    TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
    패키지 다운로드
    VSSOP (DGS) 10 옵션 보기

    주문 및 품질

    포함된 정보:
    • RoHS
    • REACH
    • 디바이스 마킹
    • 납 마감/볼 재질
    • MSL 등급/피크 리플로우
    • MTBF/FIT 예측
    • 물질 성분
    • 인증 요약
    • 지속적인 신뢰성 모니터링
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    • 팹 위치
    • 조립 위치

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