产品详情

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Control interface Hardware Output power (W) 20 Power stage supply (max) (V) 60 Power stage supply (min) (V) 16 THD + N at 1 kHz (%) 0.015 Load (min) (Ω) 4 Analog supply voltage (min) (V) 16 Analog supply voltage (max) (V) 60 Rating Catalog Operating temperature range (°C) 0 to 70
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Control interface Hardware Output power (W) 20 Power stage supply (max) (V) 60 Power stage supply (min) (V) 16 THD + N at 1 kHz (%) 0.015 Load (min) (Ω) 4 Analog supply voltage (min) (V) 16 Analog supply voltage (max) (V) 60 Rating Catalog Operating temperature range (°C) 0 to 70
TO-220 (NEB) 5 46.4312 mm² (10.16 mm × 4.57 mm) TO-220 (NDH) 5 86.0552 mm² (10.16 mm × 8.47 mm)
  • Up to 30 watts output power
  • AVO typically 90 dB
  • Low distortion: 0.015%, 1 kHz, 20 W
  • Wide power bandwidth: 70 kHz
  • Protection for AC and DC short circuits to ground
  • Thermal protection with parole circuit
  • High current capability: 4A
  • Wide supply range 16V-60V
  • Internal output protection diodes
  • 94 dB ripple rejection
  • Plastic power package TO-220

  • Up to 30 watts output power
  • AVO typically 90 dB
  • Low distortion: 0.015%, 1 kHz, 20 W
  • Wide power bandwidth: 70 kHz
  • Protection for AC and DC short circuits to ground
  • Thermal protection with parole circuit
  • High current capability: 4A
  • Wide supply range 16V-60V
  • Internal output protection diodes
  • 94 dB ripple rejection
  • Plastic power package TO-220

The LM1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications.

The LM1875 delivers 20 watts into a 4 or 8 load on ±25V supplies. Using an 8 load and ±30V supplies, over 30 watts of power may be delivered. The amplifier is designed to operate with a minimum of external components. Device overload protection consists of both internal current limit and thermal shutdown.

The LM1875 design takes advantage of advanced circuit techniques and processing to achieve extremely low distortion levels even at high output power levels. Other outstanding features include high gain, fast slew rate and a wide power bandwidth, large output voltage swing, high current capability, and a very wide supply range. The amplifier is internally compensated and stable for gains of 10 or greater.


The LM1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications.

The LM1875 delivers 20 watts into a 4 or 8 load on ±25V supplies. Using an 8 load and ±30V supplies, over 30 watts of power may be delivered. The amplifier is designed to operate with a minimum of external components. Device overload protection consists of both internal current limit and thermal shutdown.

The LM1875 design takes advantage of advanced circuit techniques and processing to achieve extremely low distortion levels even at high output power levels. Other outstanding features include high gain, fast slew rate and a wide power bandwidth, large output voltage swing, high current capability, and a very wide supply range. The amplifier is internally compensated and stable for gains of 10 or greater.


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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 LM1875 20W Audio Power Amplifier 数据表 (Rev. A) 2004-5-13
应用手册 Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 2019-8-26
应用手册 AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 2019-6-27

设计与开发

如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。

仿真模型

LM1875 PSpice Model (Rev. A)

SNAM066A.ZIP (20 KB) - PSpice 模型
支持的产品和硬件
仿真模型

LM1875 TINA-TI Reference Design (Rev. A)

SNAM068A.TSC (92 KB) - TINA-TI 参考设计
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仿真模型

LM1875 TINA-TI Spice Model (Rev. A)

SNAM067A.ZIP (6 KB) - TINA-TI Spice 模型
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
TO-220 (NEB) 5 Ultra Librarian
TO-220 (NDH) 5 Ultra Librarian

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