MP86952 Radiation Tolerance

DC-DC Power Converters
1

I would like to know what is meant by “radiation tolerant” in the description of the MP86952? I don’t see any information in the datasheet regarding this feature.

2

Hi rankin,

Let me look into this and get back to you.

Thanks,
Cindy

3

Hi rankin,

MP86952 is based off MP86956 (same part, but has no radiation tolerance).
Th MP86952 has the radiation enhancement feature which was added specifically for Telecom customers, they sometimes require radiation tolerance for testing purposes.

Thanks,
Cindy

4

Cindy,

Thank you for the quick reply. Do you have more information about the specifics of the radiation tolerance of this part? I’m curious to know if the radiation tolerance is with respect to SEE, TID, or if it means something else entirely such as improved EMC performance.

Do you know what testing the telecom customers are doing that requires this feature?

5

Hi rankin,

They were using neutron beam for testing and found one of the materials inside the IC MAX86956 reacted to the beam, they removed it, it passed the customer’s beam test, hence MAX86952 was created.
Also yes, MAX86952 improves SEE.

Thanks,
Cindy

6

Cindy,

Thank you for the response. That is interesting, and does answer my questions. Do you happen to know if any other testing has been performed on this device, such as proton or heavy ion testing, or is it only neutron testing so far?

Thanks again,
-Paul

7

Hi Paul,

Only neutron testing was done.

Cindy