收藏本站
Data Sheet
INSULATION LIFETIME
All insulation structures eventually break down when subjected to
voltage stress over a sufficiently long period. The rate of insulation
degradation is dependent on the characteristics of the voltage
waveform applied across the insulation. In addition to the testing
performed by the regulatory agencies, Analog Devices carries
out an extensive set of evaluations to determine the lifetime of
the insulation structure within the ADuM3210 / ADuM3211 .
Analog Devices performs accelerated life testing using voltage
levels higher than the rated continuous working voltage. Accel-
eration factors for several operating conditions are determined.
These factors allow calculation of the time to failure at the actual
working voltage.
The values shown in Table 31 summarize the peak voltage for
50 years of service life for a bipolar ac operating condition and
the maximum CSA/VDE approved working voltages. In many
cases, the approved working voltage is higher than the 50-year
service life voltage. Operation at these high working voltages
can lead to shortened insulation life in some cases.
The insulation lifetime of the ADuM3210 / ADuM3211 depends
on the voltage waveform type imposed across the isolation barrier.
The i Coupler insulation structure degrades at different rates
depending on whether the waveform is bipolar ac, unipolar ac, or
dc. Figure 15, Figure 16, and Figure 17 illustrate these different
isolation voltage waveforms.
Bipolar ac voltage is the most stringent environment. The goal
of a 50-year operating lifetime under the bipolar ac condition
determines the maximum working voltage recommended by
Analog Devices.
ADuM3210/ADuM3211
In the case of unipolar ac or dc voltage, the stress on the insulation
is significantly lower. This allows operation at higher working
voltages while still achieving a 50-year service life. The working
voltages listed in Table 31 can be applied while maintaining the
50-year minimum lifetime, provided that the voltage conforms
to either the unipolar ac or dc voltage cases.
Any cross-insulation voltage waveform that does not conform
to Figure 16 or Figure 17 should be treated as a bipolar ac wave-
form, and its peak voltage should be limited to the 50-year lifetime
voltage value listed in Table 31.
Note that the voltage presented in Figure 16 is shown as sinusoidal
for illustration purposes only. It is meant to represent any voltage
waveform varying between 0 V and some limiting value. The
limiting value can be positive or negative, but the voltage cannot
cross 0 V.
RATED PEAK VOLTAGE
0V
Figure 15. Bipolar AC Waveform
RATED PEAK VOLTAGE
0V
Figure 16. Unipolar AC Waveform
RATED PEAK VOLTAGE
0V
Figure 17. DC Waveform
Rev. I | Page 19 of 24
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
ADUM3300CRWZ IC DIGITAL ISOLATOR 3CH 16-SOIC
ADUM3400BRWZ IC DIGITAL ISOLATOR 4CH 16-SOIC
ADUM3442CRWZ-RL IC DIGITAL ISOLATOR 4CHAN 16SOIC
ADUM4223BRWZ ISOLATOR DIGITAL
ADUM4402CRWZ IC DIGITAL ISOLATOR 4CH 16-SOIC
ADUM5000ARWZ-RL IC DIG ISOLATOR W/DC-DC 16SOIC
ADUM5201CRWZ IC DGTL ISOLATOR W/DC-DC 16SOIC
ADUM5230ARWZ-RL IC ISOLATOR 2CH HBRIDGE 16-SOIC
相关代理商/技术参数
ADUM3210WCRZ-RL7 功能描述:IC DIGITAL ISOLATOR 2CH 8-SOIC RoHS:是 类别:隔离器 >> 数字隔离器 系列:iCoupler® 产品培训模块:IsoLoop® Isolator 标准包装:50 系列:IsoLoop® 输入 - 1 侧/2 侧:5/0 通道数:5 电源电压:3 V ~ 5.5 V 电压 - 隔离:2500Vrms 数据速率:110Mbps 传输延迟:12ns 输出类型:CMOS 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:管件 工作温度:-40°C ~ 85°C 其它名称:390-1053-5
ADUM3211 制造商:AD 制造商全称:Analog Devices 功能描述:Dual-Channel Digital Isolators, Enhanced System-Level ESD Reliability
ADUM3211ARZ 功能描述:IC ISOLATOR DGTL DUAL 8SOIC RoHS:是 类别:隔离器 >> 数字隔离器 系列:iCoupler® 标准包装:66 系列:iCoupler® 输入 - 1 侧/2 侧:2/2 通道数:4 电源电压:3.3V，5V 电压 - 隔离:2500Vrms 数据速率:25Mbps 传输延迟:60ns 输出类型:逻辑 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:管件 工作温度:-40°C ~ 105°C
ADUM3211ARZ-RL7 功能描述:IC DIGITAL ISOLATOR 2CH 8SOIC RoHS:是 类别:隔离器 >> 数字隔离器 系列:iCoupler® 产品培训模块:IsoLoop® Isolator 标准包装:50 系列:IsoLoop® 输入 - 1 侧/2 侧:5/0 通道数:5 电源电压:3 V ~ 5.5 V 电压 - 隔离:2500Vrms 数据速率:110Mbps 传输延迟:12ns 输出类型:CMOS 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:管件 工作温度:-40°C ~ 85°C 其它名称:390-1053-5
ADUM3211BRZ 功能描述:ISOLATOR DGTL 2.5KVRMS 2CH 8SOIC RoHS:是 类别:隔离器 >> 数字隔离器 系列:iCoupler® 标准包装:66 系列:iCoupler® 输入 - 1 侧/2 侧:2/2 通道数:4 电源电压:3.3V，5V 电压 - 隔离:2500Vrms 数据速率:25Mbps 传输延迟:60ns 输出类型:逻辑 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:管件 工作温度:-40°C ~ 105°C
ADUM3211BRZ-RL7 功能描述:ISOLA DGTL 2.5KVRMS 2CH 8-SOIC RoHS:是 类别:隔离器 >> 数字隔离器 系列:iCoupler® 产品培训模块:IsoLoop® Isolator 标准包装:50 系列:IsoLoop® 输入 - 1 侧/2 侧:5/0 通道数:5 电源电压:3 V ~ 5.5 V 电压 - 隔离:2500Vrms 数据速率:110Mbps 传输延迟:12ns 输出类型:CMOS 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:管件 工作温度:-40°C ~ 85°C 其它名称:390-1053-5
ADUM3211CRZ 功能描述:DGTL ISO 2.5KV GEN PURP 8SOIC 制造商:analog devices inc. 系列:* 零件状态:上次购买时间 标准包装:98
ADUM3211CRZ-RL7 功能描述:DGTL ISO 2.5KV GEN PURP 8SOIC 制造商:analog devices inc. 系列:* 零件状态:上次购买时间 标准包装:1