參數(shù)資料
      

      


      


      
型號(hào)：
LM4871N/NOPB

      

      
廠商：
NATIONAL SEMICONDUCTOR CORP

      

      
元件分類：
音頻／視頻放大

      

      
英文描述：
1.5 W, 1 CHANNEL, AUDIO AMPLIFIER, PDIP8

      

      
封裝：
DIP-8

      

      
文件頁(yè)數(shù)：
1/16頁(yè)

      

      
文件大小：
472K

      

      
代理商：
LM4871N/NOPB


      

      

      

	
      
    
    

    
      
	
      LM4871
      3W Audio Power Amplifier with Shutdown Mode
      General Description
      The LM4871 is a mono bridged audio power amplifier ca-
      pable of delivering 3W of continuous average power into a
      3
       load with less than 10% THD when powered by a 5V
      power supply (Note 1). To conserve power in portable appli-
      cations, the LM4871’s micropower shutdown mode (I
      Q =
      0.6A, typ) is activated when V
      DD is applied to the SHUT-
      DOWN pin.
      Boomer audio power amplifiers are designed specifically to
      provide high power, high fidelity audio output. They require
      few external components and operate on low supply volt-
      ages from 2.0V to 5.5V. Since the LM4871 does not require
      output coupling capacitors, bootstrap capacitors, or snubber
      networks, it is ideally suited for low-power portable systems
      that require minimum volume and weight.
      Additional LM4871 features include thermal shutdown pro-
      tection, unity-gain stability, and external gain set.
      Note 1: An LM4871LD that has been properly mounted to a circuit board will
      deliver 3W into 3
       (at 10% THD). The other package options for the LM4871
      will deliver 1.5W into 8
       (at 10% THD). See the Application Information
      sections for further information concerning the LM4871LD, LM4871MM,
      LM4871M, and the LM4871N.
      Key Specifications
      n
      PO at 10% THD+N, 1kHz
      n
      LM4871LD: 3
       ,4 loads
      3W (typ), 2.5W (typ)
      n
      All other LM4871 packages: 8
       load
      1.5W (typ)
      n
      Shutdown current
      0.6A (typ)
      n
      Supply voltage range
      2.0V to 5.5V
      n
      THD at 1kHz at 1W continuous average output power
      into 8
      0.5% (max)
      Features
      n
      No output coupling capacitors, bootstrap capacitors, or
      snubber circuits required
      n
      Unity-gain stable
      n
      LLP, MSOP, SO, or DIP packaging
      n
      External gain configuration capability
      n
      Pin compatible with the LM4861
      Applications
      n
      Portable computers
      n
      Desktop computers
      n
      Low voltage audio systems
      Connection Diagrams
      MSOP, Small Outline, and DIP Package
      LLP Package
      10000802
      Top View
      Order Number LM4871MM, LM4871M, or LM4871N
      See NS Package Number MUA08A, M08A, or N08E
      10000839
      Top View
      Order Number LM4871LD
      See NS Package Number LDC08A
      Boomer is a registered trademark of National Semiconductor Corporation.
      January 2003
      LM4871
      3W
      Audio
      Power
      Amplifier
      with
      Shutdown
      Mode
       2004 National Semiconductor Corporation
      DS100008
      www.national.com
      
    
      
    
    
      


      


      

      相關(guān)PDF資料
      		

      PDF描述
      		

      
      

      
LM4872IBPX/NOPB
1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8

      

      
LM4872IBP/NOPB
1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8

      

      
LM4873MDC
1.1 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC

      

      
LM4873MWC
1.1 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC

      

      
LM4874MH/NOPB
2.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20

      

      

      

      


      


      

      相關(guān)代理商/技術(shù)參數(shù)
      		

      參數(shù)描述
      		

      
      

      
LM4872
 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1 Watt Audio Power Amplifier in micro SMD package

      

      
LM4872IBP
功能描述:IC AMP AUDIO PWR 1W MONO 8USMD RoHS:否 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS
	Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR)

      

      
LM4872IBPX
功能描述:IC AMP AUDIO PWR 1W MONO 8USMD RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS
	Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR)

      

      
LM4872ITP
 制造商:Texas Instruments 功能描述:AMP AUDIO 1W BOOMER SMD 4872

      

      
LM4872ITP/NOPB
功能描述:IC AMP AUDIO PWR 1W MONO 8USMD RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS
	Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR)

      

      
    
    
    
	
      	
    
    
     
     
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