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LM4990ITLX/NOPB PDF预览

LM4990ITLX/NOPB

更新时间： 2024-09-22 01:05:31
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
28页 1277K
描述
2 Watt Audio Power Amplifier with Selectable Shutdown Logic Level

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LM4990ITLX/NOPB 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Active零件包装代码：BGA
包装说明：SMD-9针数：9
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.33.00.01Factory Lead Time：1 week
风险等级：0.59Is Samacsys：N
标称带宽：20 kHz商用集成电路类型：AUDIO AMPLIFIER
增益：23.8 dBJESD-30 代码：S-PBGA-B9
JESD-609代码：e1长度：1.463 mm
湿度敏感等级：1信道数量：1
功能数量：1端子数量：9
最高工作温度：85 °C最低工作温度：-40 °C
标称输出功率：2 W封装主体材料：PLASTIC/EPOXY
封装代码：VFBGA封装等效代码：BGA9,3X3,20
封装形状：SQUARE封装形式：GRID ARRAY, VERY THIN PROFILE, FINE PITCH
峰值回流温度（摄氏度）：260电源：2.6/5 V
认证状态：Not Qualified座面最大高度：0.675 mm
子类别：Audio/Video Amplifiers最大压摆率：10 mA
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：2.2 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Tin/Silver/Copper (Sn/Ag/Cu)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宽度：1.463 mm
Base Number Matches：1

LM4990ITLX/NOPB 数据手册

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LM4990  
www.ti.com  
SNAS184E –DECEMBER 2002–REVISED MAY 2013  
LM4990  
2 Watt Audio Power Amplifier with Selectable  
Shutdown Logic Level  
Check for Samples: LM4990  
1
FEATURES  
DESCRIPTION  
The LM4990 is an audio power amplifier primarily  
designed for demanding applications in mobile  
phones and other portable communication device  
applications. It is capable of delivering 1.25 watts of  
continuous average power to an 8Ω BTL load and 2  
watts of continuous average power (NGZ and DGQ  
only) to a 4Ω BTL load with less than 1% distortion  
(THD+N+N) from a 5VDC power supply.  
2
•
Available in Space-Saving Packages: WSON,  
Exposed-DAP MSOP-PowerPAD, VSSOP, and  
DSBGA  
•
•
Ultra Low Current Shutdown Mode  
Improved Click and Pop Circuitry Eliminates  
Noise During Turn-On and Turn-Off  
Transitions  
•
•
2.2 - 5.5V Operation  
Boomer audio power amplifiers were designed  
specifically to provide high quality output power with a  
minimal amount of external components. The  
LM4990 does not require output coupling capacitors  
or bootstrap capacitors, and therefore is ideally suited  
for mobile phone and other low voltage applications  
where minimal power consumption is a primary  
requirement.  
No Output Coupling Capacitors, Snubber  
Networks or Bootstrap Capacitors Required  
•
•
•
Unity-Gain Stable  
External Gain Configuration Capability  
User Selectable Shutdown High or Low Logic  
Level  
The LM4990 features a low-power consumption  
shutdown mode. To facilitate this, Shutdown may be  
enabled by either logic high or low depending on  
mode selection. Driving the shutdown mode pin either  
high or low enables the shutdown pin to be driven in  
a likewise manner to enable shutdown.  
APPLICATIONS  
•
•
•
Mobile Phones  
PDAs  
Portable Electronic Devices  
The LM4990 contains advanced pop & click circuitry  
which eliminates noise which would otherwise occur  
during turn-on and turn-off transitions.  
KEY SPECIFICATIONS  
•
•
Improved PSRR at 217Hz & 1KHz: 62dB  
Power Output at 5.0V, 1% THD+N,  
The LM4990 is unity-gain stable and can be  
configured by external gain-setting resistors.  
–
4Ω (NGZ and DGQ only): 2W (Typ)  
•
•
•
•
Power Output at 5.0V, 1% THD+N, 8Ω: 1.25W  
(Typ)  
Power Output at 3.0V, 1% THD+N, 4Ω: 600mW  
(Typ)  
Power Output at 3.0V, 1% THD+N, 8Ω: 425mW  
(Typ)  
Shutdown Current: 0.1µA (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 © 2002–2013, Texas Instruments Incorporated  
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LM4990ITLX/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM4990ITL/NOPB TI

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