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LM4951SDX PDF预览

LM4951SDX

更新时间： 2024-01-20 18:40:33
品牌 Logo 应用领域
美国国家半导体 - NSC 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 1072K
描述
IC 1.8 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10, LLP-10, Audio/Video Amplifier

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LM4951SDX 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：SOIC
包装说明：HVSON, SOLCC10,.11,20针数：10
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.33.00.01风险等级：5.15
标称带宽：20 kHz商用集成电路类型：AUDIO AMPLIFIER
谐波失真：1%JESD-30 代码：S-PDSO-N10
JESD-609代码：e0长度：4 mm
湿度敏感等级：1信道数量：1
功能数量：1端子数量：10
最高工作温度：85 °C最低工作温度：-40 °C
标称输出功率：1.8 W封装主体材料：PLASTIC/EPOXY
封装代码：HVSON封装等效代码：SOLCC10,.11,20
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260电源：3.3/7.5 V
认证状态：Not Qualified座面最大高度：0.8 mm
子类别：Audio/Video Amplifiers最大压摆率：4.5 mA
最大供电电压 (Vsup)：9 V最小供电电压 (Vsup)：2.7 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：NO LEAD
端子节距：0.8 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4 mm
Base Number Matches：1

LM4951SDX 数据手册

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January 2005  
LM4951  
Wide Voltage Range 1.8 Watt Audio Amplifier  
General Description  
Key Specifications  
The LM4951 is an audio power amplifier primarily designed  
for demanding applications in Portable Handheld devices. It  
is capable of delivering 1.8W mono BTL to an 8Ω load,  
continuous average power, with less than 1% distortion  
(THD+N) from a 7.5VDC power supply.  
j
Wide Voltage Range  
Quiescent Power Supply Current  
(VDD = 7.5V)  
2.7V to 9V  
j
2.5mA (typ)  
1.8W (typ)  
j
Power Output BTL at 7.5V,  
1% THD  
Boomer audio power amplifiers were designed specifically to  
provide high quality output power with a minimal amount of  
external components. The LM4951 does not require boot-  
strap capacitors, or snubber circuits.  
j
j
Shutdown Current  
0.01µA (typ)  
25mS (typ)  
Fast Turn on Time  
The LM4951 features a low-power consumption active-low  
shutdown mode. Additionally, the LM4951 features an inter-  
nal thermal shutdown protection mechanism.  
Features  
n Pop & click circuitry eliminates noise during turn-on and  
turn-off transitions  
The LM4951 contains advanced pop & click circuitry that  
eliminates noises which would otherwise occur during  
turn-on and turn-off transitions.  
n Low current, active-low shutdown mode  
n Low quiescent current  
n Thermal shutdown protection  
n Unity-gain stable  
The LM4951 is unity-gain stable and can be configured by  
external gain-setting resistors.  
n External gain configuration capability  
Applications  
n Portable Handheld Devices up to 9V  
n Cell Phone  
n PDA  
Typical Application  
200942F4  
* RC is needed for over/under voltage protection. If inputs are less than VDD +0.3V and greater than –0.3V, and if inputs are  
disabled when in shutdown mode, then RC may be shorted.  
FIGURE 1. Typical Bridge-Tied-Load (BTL) Audio Amplifier Application Circuit  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2005 National Semiconductor Corporation  
DS200942  
www.national.com  
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