參數(shù)資料
型號(hào)： LM4674TL/NOPB
廠商： National Semiconductor
文件頁(yè)數(shù)： 1/27頁(yè)
文件大?。?/td> 0K
描述： IC AMP AUDIO PWR 2.5W D 16USMD
產(chǎn)品培訓(xùn)模塊： PowerWise® Products and Technology
標(biāo)準(zhǔn)包裝： 1
系列： Boomer®
類型： D 類
輸出類型： 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： 2.5W x 2 @ 4 歐姆
電源電壓： 2.4 V ~ 5.5 V
特點(diǎn)： 消除爆音，差分輸入，PWM，短路保護(hù)，關(guān)機(jī)
安裝類型： 表面貼裝
供應(yīng)商設(shè)備封裝： 16-uSMD
封裝/外殼： 16-WFBGA
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： LM4674TLDKR
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
Output Short Circuit Protection
2.5W/channel, filterless switching audio amplifier. A
Stereo Class D Operation
low noise PWM architecture eliminates the output
No Output Filter Required
filter, reducing external component count, board area
consumption, system cost, and simplifying design.
Logic Selectable Gain
Independent Shutdown Control
The LM4674 is designed to meet the demands of
mobile phones and other portable communication
Minimum External Components
devices. Operating from a single 5V supply, the
Click and Pop Suppression
device is capable of delivering 2.5W/channel of
Micro-Power Shutdown
continuous output power to a 4
load with less than
10% THD+N. Flexible power supply requirements
Available in Space-Saving 2mm x 2mm x
allow operation from 2.4V to 5.5V.
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
APPLICATIONS
8
speaker from a 3.6V supply, the device features
85% efficiency at PO = 500mW. Four gain options are
Mobile Phones
pin selectable through the G0 and G1 pins.
PDAs
Output short circuit protection prevents the device
Laptops
from being damaged during fault conditions. Superior
click
and
pop
suppression
eliminates
audible
KEY SPECIFICATIONS
transients on power-up/down and during shutdown.
Independent left/right shutdown control maximizes
Efficiency at 3.6V, 100mW into 8
: 80% (typ)
power savings in mixed mono/stereo applications.
Efficiency at 3.6V, 500mW into 8
: 85% (typ)
Efficiency at 5V, 1W into 8
: 85% (typ)
Quiescent Power Supply Current
at 3.6V supply: 4mA
Power Output at VDD = 5V,
RL = 4, THD ≤ 10%: 2.5 W (typ)
Shutdown Current: 0.03
μA (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.
Copyright 2005–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
相關(guān)PDF資料
PDF描述
MAX3221EIDBG4 IC RS232 3V-5.5V DRVR 16-SSOP
VI-221-IW-F3 CONVERTER MOD DC/DC 12V 100W
VI-220-IW-F3 CONVERTER MOD DC/DC 5V 100W
D38999/24WD18AN CONN HSG RCPT 18POS JAM NUT PINS
D38999/24FB5SNLC CONN HSG RCPT 5POS JAM NUT SCKT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4674TLX 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:
LM4674TLX/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4675 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Ultra-Low EMI, Filterless, 2.65W, Mono, Class D Audio Power Amplifier with Spread Spectrum
LM4675SD 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Ultra-Low EMI, Filterless, 2.65W, Mono, Class D Audio Power Amplifier with Spread Spectrum
LM4675SD/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*