ADuM1440'S Data Sheet ,Table 18 shows . Maximum Continuous Working Voltage1
I want to know that table18's guarantee is under Tj<150 ℃ （useing table 17 condition)?
or limited condition?
I guess from a datasheet of ADuM1441 that the insulation depends
only on "Safety Limiting Values" in Table 14.
Our Customer need National Electrical Code.
Certification organization request document of letter
or declaration issued by Analog Devices.
could you give me a document of letter or declaration
saying as follows:
The insulation depends only on "Safety Limiting Values".
No other parameters except "Safety Limiting Values" are relevant to the insulation.
"Safety Limiting Values" contains only Case temperature and Total power dissipation shown in Figure 4.
We maintain UL certification to UL1577 to address US electric code requirements. You can download this certification on our web site, there is a link from the product page..
All parameters are guaranteed over the full operating temperature. The insulation can actually survive higher temperatures than the max junction temperature without deterioration. The mold compound upt tpo about 300C and the polyimide up to about 500C. Based on this we could provide such a letter, but we would rather utilize the available documentation.
Is this an Intrinsic Safety application? If so we will have an ATEX certification on this device shortly.