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LM4940

ACTIVO

Amplificador de audio estéreo de Clase AB, entrada analógica, 6 W y alimentación de 10 V a 16 V

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LM4940

ACTIVO
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Detalles del producto

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 16 Power stage supply (min) (V) 10 Load (min) (Ω) 4 THD + N at 1 kHz (%) 0.02 Iq (typ) (mA) 8 Control interface Hardware Closed/open loop Open Analog supply (min) (V) 10 Analog supply voltage (max) (V) 16 PSRR (dB) 56 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 16 Power stage supply (min) (V) 10 Load (min) (Ω) 4 THD + N at 1 kHz (%) 0.02 Iq (typ) (mA) 8 Control interface Hardware Closed/open loop Open Analog supply (min) (V) 10 Analog supply voltage (max) (V) 16 PSRR (dB) 56 Operating temperature range (°C) -40 to 85
TO-263 (KTW) 9 145.796 mm² 10.16 x 14.35
  • Click and Pop Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
  • Low Current, Active-Low Shutdown Mode
  • Low Quiescent Current
  • Stereo 6W Output, RL = 4Ω
  • Short Circuit Protection
  • Unity-Gain Stable
  • External Gain Configuration Capability

Key Specifications

  • Quiscent Power Supply Current: 40mA (max)   (SE)
  • POUT
    VDD = 14.4V, RL = 4Ω, 10% THD+N: 6 W (typ)
  • Shutdown Current: 40µA (typ)

All trademarks are the property of their respective owners.

  • Click and Pop Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
  • Low Current, Active-Low Shutdown Mode
  • Low Quiescent Current
  • Stereo 6W Output, RL = 4Ω
  • Short Circuit Protection
  • Unity-Gain Stable
  • External Gain Configuration Capability

Key Specifications

  • Quiscent Power Supply Current: 40mA (max)   (SE)
  • POUT
    VDD = 14.4V, RL = 4Ω, 10% THD+N: 6 W (typ)
  • Shutdown Current: 40µA (typ)

All trademarks are the property of their respective owners.

The LM4940 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TVs. It is capable of delivering 6 watts per channel to a 4Ω load with less than 10% THD+N while operating on a 14.4VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4940 does not require bootstrap capacitors or snubber circuits. Therefore, it is ideally suited for display applications requiring high power and minimal size.

The LM4940 features a low-power consumption active-low shutdown mode. Additionally, the LM4940 features an internal thermal shutdown protection mechanism along with short circuit protection.

The LM4940 contains advanced pop and click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM4940 is a unity-gain stable and can be configured by external gain-setting resistors.

The LM4940 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TVs. It is capable of delivering 6 watts per channel to a 4Ω load with less than 10% THD+N while operating on a 14.4VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4940 does not require bootstrap capacitors or snubber circuits. Therefore, it is ideally suited for display applications requiring high power and minimal size.

The LM4940 features a low-power consumption active-low shutdown mode. Additionally, the LM4940 features an internal thermal shutdown protection mechanism along with short circuit protection.

The LM4940 contains advanced pop and click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM4940 is a unity-gain stable and can be configured by external gain-setting resistors.
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Documentación técnica

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* Data sheet LM4940 6W Stereo Audio Power Amplifier datasheet (Rev. C) 01 may 2013

Diseño y desarrollo

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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