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LM4755

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具有集成静音功能的 11W 立体声、9V 至 40V 电源电压、模拟输入 AB 类音频放大器

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LM4755

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产品详情

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 40 Power stage supply (min) (V) 9 Load (min) (Ω) 4 Output power (W) 11 THD + N at 1 kHz (%) 0.08 Iq (typ) (mA) 5 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 9 Analog supply voltage (max) (V) 40 PSRR (dB) 50 Operating temperature range (°C) -20 to 80
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 40 Power stage supply (min) (V) 9 Load (min) (Ω) 4 Output power (W) 11 THD + N at 1 kHz (%) 0.08 Iq (typ) (mA) 5 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 9 Analog supply voltage (max) (V) 40 PSRR (dB) 50 Operating temperature range (°C) -20 to 80
TO-263 (KTW) 9 145.796 mm² 10.16 x 14.35
  • Drives 4Ω and 8Ω Loads
  • Integrated Mute Function
  • Internal Gain Resistors
  • Minimal External Components Needed
  • Single Supply Operation
  • Internal Current Limiting and Thermal Protection
  • Compact 9-lead TO-220 Package
  • Wide Supply Range 9V - 40V

Key Specifications

  • Output Power at 10% THD with 1kHz into 4Ω at VCC = 24V 11 W (typ)
  • Output Power at 10% THD with 1kHz into 8Ω at VCC = 24V 7 W (typ)
  • Closed Loop Gain 34 dB (typ)
  • PO at 10% THD+N @ 1kHz into 4Ω Single-Ended DDPAK Package at VCC=12V 2.5 W (typ)
  • PO at 10% THD+N @ 1kHz into 8Ω Bridged DDPAK Package at VCC=12V 5 W (typ)

All trademarks are the property of their respective owners.

  • Drives 4Ω and 8Ω Loads
  • Integrated Mute Function
  • Internal Gain Resistors
  • Minimal External Components Needed
  • Single Supply Operation
  • Internal Current Limiting and Thermal Protection
  • Compact 9-lead TO-220 Package
  • Wide Supply Range 9V - 40V

Key Specifications

  • Output Power at 10% THD with 1kHz into 4Ω at VCC = 24V 11 W (typ)
  • Output Power at 10% THD with 1kHz into 8Ω at VCC = 24V 7 W (typ)
  • Closed Loop Gain 34 dB (typ)
  • PO at 10% THD+N @ 1kHz into 4Ω Single-Ended DDPAK Package at VCC=12V 2.5 W (typ)
  • PO at 10% THD+N @ 1kHz into 8Ω Bridged DDPAK Package at VCC=12V 5 W (typ)

All trademarks are the property of their respective owners.

The LM4755 is a stereo audio amplifier capable of delivering 11W per channel of continuous average output power to a 4Ω load or 7W per channel into 8Ω using a single 24V supply at 10% THD+N. The internal mute circuit and pre-set gain resistors provide for a very economical design solution.

Output power specifications at both 20V and 24V supplies and low external component count offer high value to consumer electronic manufacturers for stereo TV and compact stereo applications. The LM4755 is specifically designed for single supply operation.

The LM4755 is a stereo audio amplifier capable of delivering 11W per channel of continuous average output power to a 4Ω load or 7W per channel into 8Ω using a single 24V supply at 10% THD+N. The internal mute circuit and pre-set gain resistors provide for a very economical design solution.

Output power specifications at both 20V and 24V supplies and low external component count offer high value to consumer electronic manufacturers for stereo TV and compact stereo applications. The LM4755 is specifically designed for single supply operation.
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类型 标题 下载最新的英语版本 日期
* 数据表 LM4755 Stereo 11W Audio Power Amplifier with Mute 数据表 (Rev. E) 2013年 4月 4日
应用手册 Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 2019年 8月 26日
应用手册 AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 2019年 6月 27日

设计和开发

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

LM4755 TINA-TI Reference Design

SNAM056.TSC (747 KB) - TINA-TI Reference Design
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仿真模型

LM4755 TINA-TI Spice Model

SNAM057.ZIP (21 KB) - TINA-TI Spice Model
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仿真模型

LM4755 Unencrypted PSpice Mode (Rev. A)

SNAM055A.ZIP (25 KB) - PSpice Model
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模拟工具

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封装 引脚 下载
TO-263 (KTW) 9 查看选项
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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