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Vl53L5/VL53L7 temperature reading

lukaskn
Associate II

Hi,

i am using both the VL53L5 and L7 in a quite limited space, where the sensor need to run in the 8x8 continuous mode. Therefore, the thermal design is quite challenging.  So, my question is: what temperature does the sensor specifically deliver with the parameter "silicon_temp_degc"? Can it be assumed to be its junction temperature? If not, can a delta between silicon temperature and junction temperature be estimated?

1 ACCEPTED SOLUTION

Accepted Solutions
TDK
Guru

It has to be junction temperature. The silicon area is small--it's all at about the same temperature. Reporting silicon temperature is easy and cheap. There would be no reason to put any sort of external sensor in there. It's not going to be perfectly accurate anyway.

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View solution in original post

2 REPLIES 2
TDK
Guru

It has to be junction temperature. The silicon area is small--it's all at about the same temperature. Reporting silicon temperature is easy and cheap. There would be no reason to put any sort of external sensor in there. It's not going to be perfectly accurate anyway.

If you feel a post has answered your question, please click "Accept as Solution".
John E KVAM
ST Employee

Here is an app not on thermal issues that should help.

- john


If this or any post solves your issue, please mark them as 'Accept as Solution' It really helps. And if you notice anything wrong do not hesitate to 'Report Inappropriate Content'. Someone will review it.