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LM4755

現行

11-W、立體聲道、9 至 40-V、類比輸入 AB 級音訊放大器與整合式靜音功能

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產品規格表

LM4755

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 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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類型 標題 日期
* Data sheet LM4755 Stereo 11W Audio Power Amplifier with Mute datasheet (Rev. E) 2013年 4月 4日
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 2019年 8月 26日
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 2019年 6月 27日

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模擬型號

LM4755 TINA-TI Reference Design

SNAM056.TSC (747 KB) - TINA-TI Reference Design
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模擬型號

LM4755 TINA-TI Spice Model

SNAM057.ZIP (21 KB) - TINA-TI Spice Model
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模擬型號

LM4755 Unencrypted PSpice Mode (Rev. A)

SNAM055A.ZIP (25 KB) - PSpice Model
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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