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音訊放大器
通用型音訊放大器

LM4950

現行

3.1-W 單聲道、9.6 至 16-V 類比輸入 AB 類音訊放大器

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產品規格表

LM4950

現行
產品規格表 立即訂購

產品詳細資料

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Stereo Control interface Hardware Output power (W) 7.5 Power stage supply (max) (V) 16 Power stage supply (min) (V) 9.6 THD + N at 1 kHz (%) 0.03 Load (min) (Ω) 4 Analog supply voltage (min) (V) 9.6 Analog supply voltage (max) (V) 16 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Stereo Control interface Hardware Output power (W) 7.5 Power stage supply (max) (V) 16 Power stage supply (min) (V) 9.6 THD + N at 1 kHz (%) 0.03 Load (min) (Ω) 4 Analog supply voltage (min) (V) 9.6 Analog supply voltage (max) (V) 16 Rating Catalog Operating temperature range (°C) -40 to 85
TO-263 (KTW) 9 145.796 mm² (10.16 mm × 14.35 mm)
  • Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
  • Low Current, Active-Low Shutdown Mode
  • Low Quiescent Current
  • Stereo 3.1W Output, RL = 4Ω
  • Mono 7.5W BTL Output, RL = 8Ω
  • Short Circuit Protection
  • Unity-Gain Stable
  • External Gain Configuration Capability

Key Specifications

  • Quiescent Power Supply Current 16mA (typ)
  •  POUT (SE)
    • VDD = 12V, RL = 4Ω, 1% THD+N: 3.1W (typ)
  •  POUT (BTL)
    • VDD = 12V, RL = 8Ω, 10% THD+N: 7.5W (typ)
  • Shutdown Current 40μA (typ)

All trademarks are the property of their respective owners.

  • Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
  • Low Current, Active-Low Shutdown Mode
  • Low Quiescent Current
  • Stereo 3.1W Output, RL = 4Ω
  • Mono 7.5W BTL Output, RL = 8Ω
  • Short Circuit Protection
  • Unity-Gain Stable
  • External Gain Configuration Capability

Key Specifications

  • Quiescent Power Supply Current 16mA (typ)
  •  POUT (SE)
    • VDD = 12V, RL = 4Ω, 1% THD+N: 3.1W (typ)
  •  POUT (BTL)
    • VDD = 12V, RL = 8Ω, 10% THD+N: 7.5W (typ)
  • Shutdown Current 40μA (typ)

All trademarks are the property of their respective owners.

The LM4950 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TV's. It is capable of delivering 3.1 watts per channel to a 4Ω single-ended load with less than 1% THD+N or 7.5 watts mono BTL to an 8Ω load, with less than 10% THD+N from a 12VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4950 does not require bootstrap capacitors or snubber circuits. Therefore, it is ideally suited for display applications requiring high power and minimal size.

The LM4950 features a low-power consumption active-low shutdown mode. Additionally, the LM4950 features an internal thermal shutdown protection mechanism along with short circuit protection.

The LM4950 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM4950 is a unity-gain stable and can be configured by external gain-setting resistors.

The LM4950 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TV's. It is capable of delivering 3.1 watts per channel to a 4Ω single-ended load with less than 1% THD+N or 7.5 watts mono BTL to an 8Ω load, with less than 10% THD+N from a 12VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4950 does not require bootstrap capacitors or snubber circuits. Therefore, it is ideally suited for display applications requiring high power and minimal size.

The LM4950 features a low-power consumption active-low shutdown mode. Additionally, the LM4950 features an internal thermal shutdown protection mechanism along with short circuit protection.

The LM4950 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM4950 is a unity-gain stable and can be configured by external gain-setting resistors.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LM4950 7.5W Mono-BTL or 3.1W Stereo Audio Power Amplifier datasheet (Rev. E) 2013/5/1
應用說明 Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 2019/8/26
應用說明 AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 2019/6/27

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