TSL2591 Lifespan/rebaking

General project help for Adafruit customers

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
User avatar
beanman
 
Posts: 1
Joined: Thu Sep 23, 2021 8:11 pm

TSL2591 Lifespan/rebaking

Post by beanman »

After reading the sensor data sheet I see it only has a lifespan of 168 hours.

(See Here)
https://cdn-shop.adafruit.com/datasheet ... _EN_v1.pdf

I just want to understand how this applies to the sensor on the PCB board available for purchase. If so is it possible to rebake/reflow as it describes in the datasheet.
I have a feeling this doesn't apply to the sensors once their mounted but I'm unsure

User avatar
adafruit_support_bill
 
Posts: 88086
Joined: Sat Feb 07, 2009 10:11 am

Re: TSL2591 Lifespan/rebaking

Post by adafruit_support_bill »

The 'floor life' rating pertains to how long the chip can sit around without protective packaging before being soldered to a board. The optical components of the chip are hydroscopic. And if they are allowed to absorb too much moisture from the surrounding air, that moisture can cause damage when heated to reflow soldering temperatures. The 'rebaking' procedure dries them out again so that they can be safely soldered.

Once mounted on the board, you do not need to worry about it.

Locked
Please be positive and constructive with your questions and comments.

Return to “General Project help”