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LM4668MHX/NOPB PDF预览

LM4668MHX/NOPB

更新时间： 2024-11-23 19:58:43
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
16页 498K
描述
IC,AUDIO AMPLIFIER,SINGLE,TSSOP,20PIN,PLASTIC

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LM4668MHX/NOPB 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：TSSOP, TSSOP20,.25Reach Compliance Code：compliant
风险等级：5.83商用集成电路类型：AUDIO AMPLIFIER
JESD-30 代码：R-PDSO-G20JESD-609代码：e3
湿度敏感等级：1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封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP20,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
电源：12 V认证状态：Not Qualified
子类别：Audio/Video Amplifiers最大压摆率：65 mA
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：0.635 mm端子位置：DUAL
Base Number Matches：1

LM4668MHX/NOPB 数据手册

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OBSOLETE  
LM4668  
www.ti.com  
SNAS237D –JULY 2004–REVISED APRIL 2013  
LM4668  
10W High-Efficiency Mono BTL Audio Power  
Amplifier  
Check for Samples: LM4668  
1
FEATURES  
DESCRIPTION  
The LM4668 is a high efficiency switching audio  
power amplifier primarily designed for demanding  
applications in flat panel monitors and TV’s. It is  
capable of delivering 6W to an 8Ω mono BTL load  
with less than 1% distortion (THD+N) from a 12VDC  
power supply.  
2
•
Soft-Start Circuitry Eliminates Noise During  
Turn-On Transition  
•
•
•
•
•
Low Current Shutdown Mode  
Low Quiescent Current  
6W BTL Output, RL = 8Ω  
Boomer audio power amplifiers were designed  
specifically to provide high quality output power with a  
minimal amount of external components. The  
LM4668 features a micro-power, active-low shutdown  
mode, an internal thermal shutdown protection  
mechanism, and short circuit protection.  
Short Circuit Protection  
Fixed, Internally Set Gain of 30dB  
APPLICATIONS  
•
•
•
Flat Panel Monitors  
Flat Panel TVs  
The LM4668 contains advanced transient (“pop and  
click”) suppression circuitry that eliminates noises that  
would otherwise occur during turn-on and turn-off  
transitions.  
Computer Sound Cards  
KEY SPECIFICATIONS  
•
Power Output BTL (VDD = 14V, fIN = 1kHz,  
THD+N = 10%, RL = 8Ω): 10W (typ)  
•
•
Quiescent Power Supply Current: 30mA (typ)  
Efficiency (VDD = 12V, fIN = 1kHz, RL = 8Ω,  
POUT= 6W): 79% (typ)  
•
•
Shutdown Current: 0.15mA (typ)  
Fixed Gain: 30dB (typ)  
Connection Diagrams  
BYPASS-2  
1
2
3
4
5
6
7
8
9
20 NC  
BYPASS-2  
IN  
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
NC  
IN  
NC  
NC  
19 NC  
18 OUT_1  
17 OUT_1  
16 P-GND  
15 P-GND  
NC  
OUT_1  
P-GND  
S-V  
DD  
S_V  
DD  
NC  
SHUTDOWN  
NC  
SHUTDOWN  
BYPASS-1  
S-GND  
P-V  
DD  
14  
P-V  
DD  
OUT_2  
NC  
BYPASS-1  
NC  
13 OUT_2  
12 OUT_2  
11 NC  
8
S-GND 10  
Figure 1. Top View  
14-Pin VSON  
See NHH0014A Package  
Figure 2. Top View  
20-Pin TSSOP  
See PWP Package  
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.  
All trademarks are the property of their respective owners.  
2
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  
 
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