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Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.7 Load (min) (Ω) 8 Output power (W) 1 THD + N at 1 kHz (%) 0.6 Iq (typ) (mA) 4 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 PSRR (dB) 50 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.7 Load (min) (Ω) 8 Output power (W) 1 THD + N at 1 kHz (%) 0.6 Iq (typ) (mA) 4 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 PSRR (dB) 50 Operating temperature range (°C) -40 to 85
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Precision DC Voltage Volume Control
  • Headphone Amplifier Mode
  • “Click and Pop” Suppression
  • Shutdown Control When Volume Control Pin Is Low
  • Thermal Shutdown Protection

Key Specifications

  • PO at 1.0% THD+N Into 8Ω; 750 mW (typ)
  • PO at 10% THD+N Into 8Ω; 1 W (typ)
  • Shutdown Current; 0.7µA(typ)
  • Supply Voltage Range; 2.7V to 5.5 V

All trademarks are the property of their respective owners.

  • Precision DC Voltage Volume Control
  • Headphone Amplifier Mode
  • “Click and Pop” Suppression
  • Shutdown Control When Volume Control Pin Is Low
  • Thermal Shutdown Protection

Key Specifications

  • PO at 1.0% THD+N Into 8Ω; 750 mW (typ)
  • PO at 10% THD+N Into 8Ω; 1 W (typ)
  • Shutdown Current; 0.7µA(typ)
  • Supply Voltage Range; 2.7V to 5.5 V

All trademarks are the property of their respective owners.

The LM4875 is a mono bridged audio power amplifier with DC voltage volume control. The LM4875 is capable of delivering 750mW of continuous average power into an 8Ω load with less than 1% THD when powered by a 5V power supply. Switching between bridged speaker mode and headphone (single ended) mode is accomplished using the headphone sense pin. To conserve power in portable applications, the LM4875's micropower shutdown mode (IQ = 0.7µA, typ) is activated when less than 300mV is applied to the DC Vol/SD pin.

Boomer audio power amplifiers are designed specifically to provide high power audio output while maintaining high fidelity. They require few external components and operate on low supply voltages.

The LM4875 is a mono bridged audio power amplifier with DC voltage volume control. The LM4875 is capable of delivering 750mW of continuous average power into an 8Ω load with less than 1% THD when powered by a 5V power supply. Switching between bridged speaker mode and headphone (single ended) mode is accomplished using the headphone sense pin. To conserve power in portable applications, the LM4875's micropower shutdown mode (IQ = 0.7µA, typ) is activated when less than 300mV is applied to the DC Vol/SD pin.

Boomer audio power amplifiers are designed specifically to provide high power audio output while maintaining high fidelity. They require few external components and operate on low supply voltages.

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类型 标题 下载最新的英语版本 日期
* 数据表 LM4875 BOOMER 750mW Audio Pwr Amp w/DC Vol Contro & Headphone Switch 数据表 (Rev. C) 2013年 5月 2日
白皮书 Optimizing Portable Applications with D/A Converters 2006年 9月 1日

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