5秒后页面跳转
捷配首页

Datasheet > LM4670
LM4670 PDF预览

LM4670

更新时间： 2024-11-23 12:36:47
品牌 Logo 应用领域
德州仪器 - TI 放大器功率放大器
页数 文件大小 规格书
24页 1768K
描述
LM4670 Boomer Audio Power Amplifier Series Filterless High

阅读下载

中文翻译

获取价格

LM4670 数据手册

 浏览型号LM4670的Datasheet PDF文件第2页浏览型号LM4670的Datasheet PDF文件第3页浏览型号LM4670的Datasheet PDF文件第4页浏览型号LM4670的Datasheet PDF文件第5页浏览型号LM4670的Datasheet PDF文件第6页浏览型号LM4670的Datasheet PDF文件第7页 
LM4670  
www.ti.com  
SNAS240C –DECEMBER 2004–REVISED MAY 2013  
LM4670 Boomer™ Audio Power Amplifier Series Filterless High Efficiency 3W Switching  
Audio Amplifier  
Check for Samples: LM4670  
1
FEATURES  
DESCRIPTION  
The LM4670 is a fully integrated single-supply high  
efficiency switching audio amplifier. It features an  
innovative modulator that eliminates the LC output  
filter used with typical switching amplifiers.  
Eliminating the output filter reduces external  
component count, simplifies circuit design, and  
reduces board area. The LM4670 processes analog  
inputs with a delta-sigma modulation technique that  
lowers output noise and THD when compared to  
conventional pulse width modulators.  
23  
•
No Output Filter Required for Inductive Loads  
Externally Configurable Gain  
•
•
•
•
•
•
•
Very Fast Turn on Time: 1.35ms (Typ)  
Minimum External Components  
"Click and Pop" Suppression Circuitry  
Micro-Power Shutdown Mode  
Short Circuit Protection  
Available in Space-Saving DSBGA and WSON  
Packages  
The LM4670 is designed to meet the demands of  
mobile phones and other portable communication  
devices. Operating on a single 5V supply, it is  
capable of driving a 4Ω speaker load at a continuous  
average output of 2.3W with less than 1% THD+N. Its  
flexible power supply requirements allow operation  
from 2.4V to 5.5V.  
APPLICATIONS  
•
•
•
Mobile Phones  
PDAs  
Portable Electronic Devices  
The LM4670 has high efficiency with speaker loads  
compared to a typical Class AB amplifier. With a 3.6V  
supply driving an 8Ω speaker, the IC's efficiency for a  
100mW power level is 77%, reaching 88% at 600mW  
output power.  
KEY SPECIFICATIONS  
•
•
•
Efficiency at 3.6V, 100mW into 8Ω Speaker,  
77% (Typ)  
Efficiency at 3.6V, 600mW into 8Ω Speaker,  
88% (Typ)  
The LM4670 features a low-power consumption  
shutdown mode. Shutdown may be enabled by  
driving the Shutdown pin to a logic low (GND).  
Efficiency at 5V, 1W into 8Ω Speaker, 87%  
(Typ)  
The gain of the LM4670 is externally configurable  
which allows independent gain control from multiple  
sources by summing the signals.  
•
•
Quiescent Current, 3.6V Supply, 4.8mA (Typ)  
Total Shutdown Power Supply Current, 0.01µA  
(Typ)  
•
Single Supply Range, 2.4 to 5.5V  
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
3
Boomer is a trademark of Texas Instruments.  
All other 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 © 2004–2013, Texas Instruments Incorporated  
1234567...24

中文翻译

下载PDF

与LM4670相关器件

型号 品牌 获取价格 描述 数据表
LM4670_06 NSC

获取价格

 		Filterless High Efficiency 3W Switching Audio Amplifier
LM4670ITL TI

获取价格

 		LM4670 Boomer Audio Power Amplifier Series Filterless High
LM4670ITL NSC

获取价格

 		Filterless High Efficiency 3W Switching Audio Amplifier
LM4670ITL/NOPB NSC

获取价格

 		IC 3 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9, MICRO, SMD-9, Audio/Video Amplifier
LM4670ITL/NOPB TI

获取价格

 		LM4670 Boomer™ Audio Power Amplifier Series
LM4670ITLX TI

获取价格

 		LM4670 Boomer Audio Power Amplifier Series Filterless High
LM4670ITLX NSC

获取价格

 		Filterless High Efficiency 3W Switching Audio Amplifier
LM4670SD NSC

获取价格

 		Filterless High Efficiency 3W Switching Audio Amplifier
LM4670SD TI

获取价格

 		LM4670 Boomer Audio Power Amplifier Series Filterless High
LM4670SDX NSC

获取价格

 		IC 3 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8, LLP-8, Audio/Video Amplifier

与LM4670相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证