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LM4893M

更新时间： 2024-09-25 21:07:59
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
22页 675K
描述
IC 1.1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8, SO-8, Audio/Video Amplifier

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LM4893M 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
包装说明：SOP, SOP8,.25Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.33.00.01
风险等级：5.78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：R-PDSO-G8JESD-609代码：e0
长度：4.9 mm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：1.1 W封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP8,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：NOT SPECIFIED电源：2.6/5 V
认证状态：Not Qualified座面最大高度：1.75 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/Lead (Sn/Pb)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

LM4893M 数据手册

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August 2002  
LM4893  
1.1 Watt Audio Power Amplifier  
General Description  
Key Specifications  
The LM4893 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 1.1 watt of continuous average power to an 8Ω  
BTL load with less than 1% distortion (THD+N) from a 5VDC  
power supply.  
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Improved PSRR at 5V, 3V, & 217Hz  
62dB (typ)  
1.1W (typ)  
Higher Power Output at 5V & 1% THD  
Higher Power Output at 3V & 1% THD 350mW (typ)  
Shutdown Current 0.1µA (typ)  
Boomer audio power amplifiers were designed specifically to  
provide high quality output power with a minimal amount of  
external components. The LM4893 does not require output  
coupling capacitors or bootstrap capacitors, and therefore is  
ideally suited for lower-power portable applications where  
minimal space and power consumption are primary require-  
ments.  
Features  
n No output coupling capacitors, snubber networks or  
bootstrap capacitors required  
n Unity gain stable  
n Ultra low current shutdown mode  
n Instantaneous turn-on time  
The LM4893 features a low-power consumption global shut-  
down mode, which is achieved by driving the shutdown pin  
with logic low. Additionally, the LM4893 features an internal  
thermal shutdown protection mechanism.  
n BTL output can drive capacitive loads up to 100pF  
n Advanced pop & click circuitry eliminates noises during  
turn-on and turn-off transitions  
n 2.2V - 5.5V operation  
n Available in space-saving µSMD, SO, and MSOP  
packages  
The LM4893 contains advanced pop & click circuitry which  
eliminates noises which would otherwise occur during  
turn-on and turn-off transitions.  
The LM4893 is unity-gain stable and can be configured by  
external gain-setting resistors.  
Applications  
n Mobile Phones  
n PDAs  
n Portable electronic devices  
Typical Application  
20038001  
FIGURE 1. Typical Audio Amplifier Application Circuit  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2002 National Semiconductor Corporation  
DS200380  
www.national.com  
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