vBat specs??

I

internett

Member
Hi together,

now searching for couple of hours for vBat specs voltage. I found many info how to connect a coin battery and some use 3.3v (LDO) and/or 3.6/3.7v...(LiPo)
but nowhere found a real spec how much to put in vBat: minimum until it works secured and maximum to not break it/anything.
Please give me a hint or link or information about min/max specs...

Thanks in advance for your support,
 
The Battery Backup operating range is listed in 1060 Electrical spec as 2.4V to 3.6V on page 23.

1060 Vbat voltage range.jpg

There's also a Note #3:
In setting VDD_SNVS_IN voltage with regards to Charging Currents and RTC, refer to the i.MX RT1060 Hardware Development Guide (IMXRT1060HDG).
Assuming OP is talking about Teensy4.x, the above applies.
Also note if a LiPo is used and it's freshly charged, it could present 4.2V to 1060 pin. Magic smoke!
 
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