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LM4951

現行

1.8-W 單聲道、2.7 至 9-V 類比輸入 AB 類音訊放大器

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產品規格表

LM4951

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) Mono Rating Catalog Load (min) (Ω) 8 Output power (W) 1.8 THD + N at 1 kHz (%) 0.07 Iq (typ) (mA) 2.5 Control interface Hardware Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 9 PSRR (dB) 66 Operating temperature range (°C) to
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Load (min) (Ω) 8 Output power (W) 1.8 THD + N at 1 kHz (%) 0.07 Iq (typ) (mA) 2.5 Control interface Hardware Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 9 PSRR (dB) 66 Operating temperature range (°C) to
WSON (DPR) 10 16 mm² 4 x 4
  • Click and Pop Circuitry Eliminates Noise during Turn-On and Turn-Off Transitions
  • Low Current, Active-Low Shutdown Mode
  • Low Quiescent Current
  • Thermal Shutdown Protection
  • Unity-Gain Stable
  • External Gain Configuration Capability

Key Specifications

  • Wide Voltage Range: 2.7V to 9 V
  • Quiescent Power Supply Current (VDD = 7.5V): 2.5mA (typ)
  • Power Output BTL at 7.5V, 1% THD: 1.8 W (typ)
  • Shutdown Current: 0.01µA (typ)
  • Fast Turn on Time: 25ms (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
  • Thermal Shutdown Protection
  • Unity-Gain Stable
  • External Gain Configuration Capability

Key Specifications

  • Wide Voltage Range: 2.7V to 9 V
  • Quiescent Power Supply Current (VDD = 7.5V): 2.5mA (typ)
  • Power Output BTL at 7.5V, 1% THD: 1.8 W (typ)
  • Shutdown Current: 0.01µA (typ)
  • Fast Turn on Time: 25ms (typ)

All trademarks are the property of their respective owners.

The LM4951 is an audio power amplifier primarily designed for demanding applications in Portable Handheld devices. It is capable of delivering 1.8W mono BTL to an 8Ω load, continuous average power, with less than 1% distortion (THD+N) from a 7.5VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4951 does not require bootstrap capacitors, or snubber circuits.

The LM4951 features a low-power consumption active-low shutdown mode. Additionally, the LM4951 features an internal thermal shutdown protection mechanism.

The LM4951 contains advanced click and pop circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM4951 is unity-gain stable and can be configured by external gain-setting resistors.

The LM4951 is an audio power amplifier primarily designed for demanding applications in Portable Handheld devices. It is capable of delivering 1.8W mono BTL to an 8Ω load, continuous average power, with less than 1% distortion (THD+N) from a 7.5VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4951 does not require bootstrap capacitors, or snubber circuits.

The LM4951 features a low-power consumption active-low shutdown mode. Additionally, the LM4951 features an internal thermal shutdown protection mechanism.

The LM4951 contains advanced click and pop circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM4951 is unity-gain stable and can be configured by external gain-setting resistors.

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類型 標題 日期
* Data sheet LM4951 Wide Voltage Range 1.8 Watt Audio Amplifier datasheet (Rev. N) 2013年 5月 1日
EVM User's guide AN-1441 LM4962 Evaluation Board (Rev. A) 2013年 5月 1日

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