Loss of function after exposure to high temperature (VL53L0X ToF sensor)

[philipw]

Hi everyone,

I have a problem with the VL53L0X Time of Flight (ToF) ranging sensor, where after being exposed to a temperature of 100°C for around 1.5h, the sensor is not functional anymore.

In the solder reflow process section of the datasheet, the temperatures for soldering are all well above 100 °C, so the sensor should survive these conditions.tim

Could the temperature still be the reason for the failure?

Thanks in advance and kind regards

Philip

[TDK]

Reflow is meant to be a very controlled, limited duration (several minutes), one-time event. If you kept the sensor at those temperatures continuously, it would surely be destroyed.

It's reasonable for 100 C to destroy the sensor. Max storage temperature is 85 C.

Typically, max storage temperature on chips is much higher than this, which leads me to believe there's something internal that shouldn't be getting above 85 C.

Max operating temp is 70 C. It wasn't powered, was it?