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ADUM3300 PDF预览

ADUM3300

更新时间: 2024-01-18 08:36:50
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
20页 466K
描述
Triple-Channel, Digital Isolators, Enhanced System-Level ESD Reliability

ADUM3300 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Active包装说明:SOP,
针数:16Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8543.70.99.60
风险等级:5.57接口集成电路类型:INTERFACE CIRCUIT
JESD-30 代码:R-PDSO-G16JESD-609代码:e3
长度:10.3 mm湿度敏感等级:3
功能数量:1端子数量:16
最高工作温度:125 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260座面最大高度:2.65 mm
最大供电电压:5.5 V最小供电电压:3 V
标称供电电压:3.3 V表面贴装:YES
技术:CMOS温度等级:AUTOMOTIVE
端子面层: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
Base Number Matches:1

ADUM3300 数据手册

 浏览型号ADUM3300的Datasheet PDF文件第14页浏览型号ADUM3300的Datasheet PDF文件第15页浏览型号ADUM3300的Datasheet PDF文件第16页浏览型号ADUM3300的Datasheet PDF文件第17页浏览型号ADUM3300的Datasheet PDF文件第19页浏览型号ADUM3300的Datasheet PDF文件第20页 
ADuM3300/ADuM3301  
The pulses at the transformer output have an amplitude greater  
than 1.0 V. The decoder has a sensing threshold at about 0.5 V, thus  
establishing a 0.5 V margin in which induced voltages can be  
tolerated. The voltage induced across the receiving coil is given by  
The preceding magnetic flux density values correspond to  
specific current magnitudes at given distances from the  
ADuM330x transformers. Figure 17 expresses these allowable  
current magnitudes as a function of frequency for selected  
distances. The ADuM330x is extremely immune and can be  
affected only by extremely large currents operated at high  
frequency very close to the component (see Figure 17). For the  
1 MHz example noted, one would have to place a 0.5 kA current  
5 mm away from the ADuM330x to affect the components  
operation.  
2
V = (−dβ/dt)rn ; n = 1, 2, … , N  
where:  
β is magnetic flux density (gauss).  
N is the number of turns in the receiving coil.  
rn is the radius of the nth turn in the receiving coil (cm).  
1000  
Given the geometry of the receiving coil in the ADuM330x and  
an imposed requirement that the induced voltage be at most  
50% of the 0.5 V margin at the decoder, a maximum allowable  
magnetic field is calculated as shown in Figure 16.  
DISTANCE = 1m  
100  
10  
100  
DISTANCE = 100mm  
1
10  
DISTANCE = 5mm  
0.1  
1
0.01  
1k  
10k  
100k  
1M  
10M  
100M  
0.1  
MAGNETIC FIELD FREQUENCY (Hz)  
Figure 17. Maximum Allowable Current for Various Current-to-ADuM330x  
Spacings  
0.01  
Note that at combinations of strong magnetic field and high  
frequency, any loops formed by printed circuit board traces  
could induce error voltages sufficiently large enough to trigger  
the thresholds of succeeding circuitry. Care should be taken in  
the layout of such traces to avoid this possibility.  
0.001  
1k  
10k  
100k  
1M  
10M  
100M  
MAGNETIC FIELD FREQUENCY (Hz)  
Figure 16. Maximum Allowable External Magnetic Flux Density  
For example, at a magnetic field frequency of 1 MHz, the  
maximum allowable magnetic field of 0.2 kgauss induces a  
voltage of 0.25 V at the receiving coil. This is about 50% of the  
sensing threshold and does not cause a faulty output transition.  
Similarly, if such an event were to occur during a transmitted  
pulse (and was of the worst-case polarity), it would reduce the  
received pulse from >1.0 V to 0.75 V—still well above the 0.5 V  
sensing threshold of the decoder.  
Rev. 0 | Page 18 of 20  
 
 

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