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LM4867MT/NOPB PDF预览

LM4867MT/NOPB

更新时间： 2024-01-17 05:09:33
品牌 Logo 应用领域
德州仪器 - TI 放大器光电二极管商用集成电路
页数 文件大小 规格书
36页 1384K
描述
1.5W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20, 4.40 MM, TSSOP-20

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LM4867MT/NOPB 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：TSSOP
包装说明：LSSOP,针数：20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.33.00.01风险等级：5.69
标称带宽：20 kHz商用集成电路类型：AUDIO AMPLIFIER
JESD-30 代码：R-PDSO-G20JESD-609代码：e3
长度：6.5 mm湿度敏感等级：1
信道数量：2功能数量：1
端子数量：20最高工作温度：85 °C
最低工作温度：-40 °C标称输出功率：1.5 W
封装主体材料：PLASTIC/EPOXY封装代码：LSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.4 mm最大压摆率：15 mA
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：2 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：40宽度：4.4 mm
Base Number Matches：1

LM4867MT/NOPB 数据手册

 浏览型号LM4867MT/NOPB的Datasheet PDF文件第2页浏览型号LM4867MT/NOPB的Datasheet PDF文件第3页浏览型号LM4867MT/NOPB的Datasheet PDF文件第4页浏览型号LM4867MT/NOPB的Datasheet PDF文件第5页浏览型号LM4867MT/NOPB的Datasheet PDF文件第6页浏览型号LM4867MT/NOPB的Datasheet PDF文件第7页 
OBSOLETE  
LM4867  
www.ti.com  
SNAS117B –MAY 2004–REVISED OCTOBER 2004  
LM4867  
Output-Transient-Free Dual 2.1W Audio Amplifier  
Plus No Coupling Capacitor Stereo Headphone Function  
Check for Samples: LM4867  
1
FEATURES  
DESCRIPTION  
The LM4867 is a dual bridge-connected audio power  
2
•
Advanced “Click and Pop” Suppression  
Circuitry  
amplifier which, when connected to a 5V supply, will  
(1)  
(2)  
deliver 2.1W to a 4Ω load  
or 2.4W to a 3Ω load  
•
Eliminates Headphone Amplifier Output  
Coupling Capacitors (Patent Pending)  
with less than 1.0% THD+N (see notes below). The  
LM4867 uses advanced, latest generation circuitry to  
eliminate all traces of clicks and pops when the  
supply voltage is first applied. The amplifier has a  
headphone-amplifier-select input pin. It is used to  
switch the amplifiers from bridge to single-ended  
mode for driving headphones. A new circuit topology  
eliminates headphone output coupling capacitors  
(patent pending). A MUX control pin allows selection  
between the two sets of stereo input signals. The  
MUX control can also be used to select between two  
different customer-specified closed-loop responses.  
•
•
Stereo Headphone Amplifier Mode  
Input Mux Control and Two Separate Inputs  
Per Channel  
•
•
Thermal Shutdown Protection Circuitry  
WQFN, TSSOP, and HTSSOP Packaging  
Available  
APPLICATIONS  
•
•
•
Multimedia Monitors  
Boomer audio power amplifiers are designed  
specifically to provide high quality output power from  
a surface mount package and require few external  
components. To simplify audio system design, the  
LM4867 combines dual bridge speaker amplifiers and  
stereo headphone amplifiers in one package.  
Portable and Desktop Computers  
Portable Audio Systems  
KEY SPECIFICATIONS  
•
PO at 1% THD+N  
The LM4867 features an externally controlled power-  
–
–
–
–
LM4867LQ, 3Ω Load, 2.4W (Typ)  
LM4867LQ, 4Ω Load, 2.1W (Typ)  
LM4867MTE, 4Ω, 1.9W (Typ)  
LM4867MT, 8Ω, 1.1W (Typ)  
saving micropower shutdown mode,  
a
stereo  
headphone amplifier mode, and thermal shutdown  
protection.  
(1) An LM4867LQ or LM4867MTE that has been properly  
mounted to a circuit board will deliver 2.1W into 4Ω. The Mux  
control can also be used to select two different closed-loop  
responses. LM4867MT will deliver 1.1W into 8Ω. See the  
Application Information sections for further information  
concerning the LM4867LQ and the LM4867MT.  
(2) An LM4867LQ or LM4867MTE that has been properly  
mounted to a circuit board and forced-air cooled will deliver  
2.4W into 3Ω.  
•
•
Single-Ended Mode - THD+N at 75mW into  
32Ω, 0.5% (Max)  
Shutdown Current, 0.7µA (Typ)  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2004, Texas Instruments Incorporated  
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