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ADuM4473ARIZ

更新时间： 2024-02-28 07:11:41
品牌 Logo 应用领域
亚德诺 - ADI 稳压器开关
页数 文件大小 规格书
36页 750K
描述
Isolated Switching Regulator with Quad-Channel Isolators

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中文翻译

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ADuM4473ARIZ 技术参数

Source Url Status Check Date：2013-05-01 14:56:51.07是否无铅： 含铅
是否Rohs认证： 符合生命周期：Active
包装说明：SOP, SOP20,.4针数：20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.74
其他特性：ALSO WORKS WITH 5 V INPUT;VOUT=(3.3-24 VOLT)模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制技术：PULSE WIDTH MODULATION最大输入电压：3.6 V
最小输入电压：3 V标称输入电压：3.3 V
JESD-30 代码：R-PDSO-G20JESD-609代码：e3
长度：15.3 mm湿度敏感等级：3
功能数量：1端子数量：20
最高工作温度：105 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP20,.4封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
电源：5 V认证状态：Not Qualified
座面最大高度：2.64 mm子类别：Other Analog ICs
标称供电电压 (Vsup)：5 V表面贴装：YES
最大切换频率：515 kHz技术：DMOS
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
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：30
宽度：7.5 mm

ADuM4473ARIZ 数据手册

 浏览型号ADuM4473ARIZ的Datasheet PDF文件第30页浏览型号ADuM4473ARIZ的Datasheet PDF文件第31页浏览型号ADuM4473ARIZ的Datasheet PDF文件第32页浏览型号ADuM4473ARIZ的Datasheet PDF文件第34页浏览型号ADuM4473ARIZ的Datasheet PDF文件第35页浏览型号ADuM4473ARIZ的Datasheet PDF文件第36页 
Data Sheet  
ADuM4470/ADuM4471/ADuM4472/ADuM4473/ADuM4474  
voltages while still achieving a 50-year service life. The working  
voltages listed in Table 11 can be applied while maintaining the  
INSULATION LIFETIME  
All insulation structures eventually break down when subjected  
to voltage stress over a sufficiently long period. The rate of insu-  
lation degradation is dependent on the characteristics of the  
voltage waveform applied across the insulation. Analog Devices,  
Inc., conducts an extensive set of evaluations to determine the  
lifetime of the insulation structure within the ADuM447x.  
Accelerated life testing is performed using voltage levels higher  
than the rated continuous working voltage. Acceleration factors  
for several operating conditions are determined, allowing  
calculation of the time to failure at the working voltage of  
interest. The values shown in Table 11 summarize the peak  
voltages for 50 years of service life in several operating condi-  
tions. In many cases, the working voltage approved by agency  
testing is higher than the 50-year service life voltage. Operation at  
working voltages that are higher than the service life voltage  
listed leads to premature insulation failure.  
50-year minimum lifetime, provided that the voltage conforms  
to either the dc or unipolar ac voltage cases. Treat any cross-  
insulation voltage waveform that does not conform to Figure 57  
or Figure 58 as a bipolar ac waveform, and limit its peak voltage  
to the 50-year lifetime voltage value listed in Table 11.  
RATED PEAK VOLTAGE  
0V  
Figure 56. Bipolar AC Waveform  
RATED PEAK VOLTAGE  
0V  
Figure 57. DC Waveform  
The insulation lifetime of the ADuM447x depends on the voltage  
waveform type imposed across the isolation barrier. The iCoupler  
insulation structure degrades at different rates, depending on  
whether the waveform is dc, bipolar ac, or unipolar ac. Figure 56,  
Figure 57, and Figure 58 illustrate these different isolation voltage  
waveforms.  
RATED PEAK VOLTAGE  
0V  
NOTES  
1. THE VOLTAGE IS SHOWN SINUSOIDAL  
FOR ILLUSTRATION PURPOSES ONLY.  
IT IS MEANT TO REPRESENT ANY VOLTAGE  
WAVEFORM VARYING BETWEEN 0 AND SOME  
LIMITING VALUE. THE LIMITING VALUE CAN BE  
POSITIVE OR NEGATIVE, BUT THE VOLTAGE  
CANNOT CROSS 0V.  
Bipolar ac voltage is the most stringent environment. A 50-year  
operating lifetime under the bipolar ac condition determines  
the Analog Devices recommended maximum working voltage.  
Figure 58. Unipolar AC Waveform  
In the case of dc or unipolar ac voltage, the stress on the insulation  
is significantly lower. This allows operation at higher working  
Rev. 0 | Page 33 of 36  
 
 
 
 
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