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LM4674SQX/NOPB PDF预览

LM4674SQX/NOPB

更新时间： 2024-11-16 14:52:27
品牌 Logo 应用领域
德州仪器 - TI 放大器商用集成电路
页数 文件大小 规格书
27页 1592K
描述
IC,AUDIO AMPLIFIER,DUAL,BGA,16PIN,PLASTIC

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LM4674SQX/NOPB 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：FBGA, BGA16,4X4,20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.33.00.01
风险等级：5.41商用集成电路类型：AUDIO AMPLIFIER
JESD-30 代码：S-PBGA-B16JESD-609代码：e3
湿度敏感等级：1功能数量：2
端子数量：16最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：FBGA封装等效代码：BGA16,4X4,20
封装形状：SQUARE封装形式：GRID ARRAY, FINE PITCH
峰值回流温度（摄氏度）：260电源：2.5/5 V
认证状态：Not Qualified子类别：Audio/Video Amplifiers
最大压摆率：7.5 mA表面贴装：YES
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：BALL端子节距：0.5 mm
端子位置：BOTTOM处于峰值回流温度下的最长时间：NOT SPECIFIED
Base Number Matches：1

LM4674SQX/NOPB 数据手册

 浏览型号LM4674SQX/NOPB的Datasheet PDF文件第2页浏览型号LM4674SQX/NOPB的Datasheet PDF文件第3页浏览型号LM4674SQX/NOPB的Datasheet PDF文件第4页浏览型号LM4674SQX/NOPB的Datasheet PDF文件第5页浏览型号LM4674SQX/NOPB的Datasheet PDF文件第6页浏览型号LM4674SQX/NOPB的Datasheet PDF文件第7页 
LM4674  
www.ti.com  
SNAS344E –DECEMBER 2005–REVISED APRIL 2013  
LM4674  
Filterless 2.5W Stereo Class D Audio Power  
Amplifier  
Check for Samples: LM4674  
1
FEATURES  
DESCRIPTION  
The LM4674 is a single supply, high efficiency,  
2.5W/channel, filterless switching audio amplifier. A  
low noise PWM architecture eliminates the output  
filter, reducing external component count, board area  
consumption, system cost, and simplifying design.  
2
•
Output Short Circuit Protection  
Stereo Class D Operation  
No Output Filter Required  
Logic Selectable Gain  
•
•
•
•
•
•
•
•
Independent Shutdown Control  
Minimum External Components  
Click and Pop Suppression  
Micro-Power Shutdown  
The LM4674 is designed to meet the demands of  
mobile phones and other portable communication  
devices. Operating from a single 5V supply, the  
device is capable of delivering 2.5W/channel of  
continuous output power to a 4Ω load with less than  
10% THD+N. Flexible power supply requirements  
allow operation from 2.4V to 5.5V.  
Available in Space-Saving 2mm x 2mm x  
0.6mm DSBGA, and 4mm x 4mm x 0.8mm  
WQFN Packages  
The LM4674 features high efficiency compared to  
conventional Class AB amplifiers. When driving an  
8Ω speaker from a 3.6V supply, the device features  
85% efficiency at PO = 500mW. Four gain options are  
pin selectable through the G0 and G1 pins.  
APPLICATIONS  
•
•
•
Mobile Phones  
PDAs  
Output short circuit protection prevents the device  
from being damaged during fault conditions. Superior  
click and pop suppression eliminates audible  
transients on power-up/down and during shutdown.  
Independent left/right shutdown control maximizes  
power savings in mixed mono/stereo applications.  
Laptops  
KEY SPECIFICATIONS  
•
•
•
•
Efficiency at 3.6V, 100mW into 8Ω: 80% (typ)  
Efficiency at 3.6V, 500mW into 8Ω: 85% (typ)  
Efficiency at 5V, 1W into 8Ω: 85% (typ)  
Quiescent Power Supply Current  
at 3.6V supply: 4mA  
•
•
Power Output at VDD = 5V,  
RL = 4Ω, THD ≤ 10%: 2.5 W (typ)  
Shutdown Current: 0.03μA (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 © 2005–2013, Texas Instruments Incorporated  
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LM4674SQX/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM4674SQ/NOPB TI

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 免滤波 2.5 立体声 D 类音频功率放大器 | RGH | 16 | -40 to 85

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