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LM4990ITL

更新时间： 2024-01-26 20:47:23
品牌 Logo 应用领域
美国国家半导体 - NSC 商用集成电路放大器功率放大器
页数 文件大小 规格书
19页 724K
描述
2 Watt Audio Power Amplifier with Selectable Shutdown Logic Level

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LM4990ITL 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：TSSOP, TSSOP10,.19,20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.33.00.01Factory Lead Time：12 weeks
风险等级：0.85商用集成电路类型：AUDIO AMPLIFIER
JESD-30 代码：S-PDSO-G8JESD-609代码：e3
长度：3 mm湿度敏感等级：1
信道数量：1功能数量：1
端子数量：8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：TSSOP
封装等效代码：TSSOP10,.19,20封装形状：SQUARE
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK 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：1.1 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：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3 mmBase Number Matches：1

LM4990ITL 数据手册

 浏览型号LM4990ITL的Datasheet PDF文件第2页浏览型号LM4990ITL的Datasheet PDF文件第3页浏览型号LM4990ITL的Datasheet PDF文件第4页浏览型号LM4990ITL的Datasheet PDF文件第5页浏览型号LM4990ITL的Datasheet PDF文件第6页浏览型号LM4990ITL的Datasheet PDF文件第7页 
January 2004  
LM4990  
2 Watt Audio Power Amplifier with Selectable Shutdown  
Logic Level  
General Description  
Key Specifications  
The LM4990 is an audio power amplifier primarily designed  
for demanding applications in mobile phones and other por-  
table 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 (LD and  
MH only) to a 4Ω BTL load with less than 1% distortion  
(THD+N+N) from a 5VDC power supply.  
j
Improved PSRR at 217Hz & 1KHz  
62dB  
j
Power Output at 5.0V, 1%  
THD+N,  
4Ω (LD and MH only)  
Power Output at 5.0V, 1% THD+N, 8Ω  
2W (typ)  
j
j
j
j
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)  
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 appli-  
cations where minimal power consumption is a primary re-  
quirement.  
Shutdown Current  
0.1µA (typ)  
Features  
n Available in space-saving packages: LLP, Exposed-DAP  
TSSOP, MSOP, and ITL  
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.  
n Ultra low current shutdown mode  
n Improved pop & click circuitry eliminates noise during  
turn-on and turn-off transitions  
n 2.2 - 5.5V operation  
The LM4990 contains advanced pop & click circuitry which  
eliminates noise which would otherwise occur during turn-on  
and turn-off transitions.  
n No output coupling capacitors, snubber networks or  
bootstrap capacitors required  
n Unity-gain stable  
The LM4990 is unity-gain stable and can be configured by  
external gain-setting resistors.  
n External gain configuration capability  
n User selectable shutdown High or Low logic Level  
Applications  
n Mobile Phones  
n PDAs  
n Portable electronic devices  
Connection Diagrams  
Mini Small Outline (MSOP) Package  
MSOP Marking  
20051071  
Top View  
Z - Plant Code  
200510B9  
Top View  
Order Number LM4990MM  
See NS Package Number MUA08A  
X - Date Code  
TT - Die Traceability  
G - Boomer Family  
A5 - LM4990MM  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2004 National Semiconductor Corporation  
DS200510  
www.national.com  
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