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Peng · 2023-04-04

Hello,We use STM32F429ZI on our project now, and the VBAT pin is connected to a button cell as RTC power supply. And we are running a short circuit test on VBAT pin, if there is a short circuit on the VBAT pin, then it means that the positive termin...

Peng · 2023-04-12

Hello Peter @peter BENSCH,I still have one question about this subject. I have found an application note AN3060, and in this AN3060, it shows below diagram from where we can see there are two diodes of protection and switchover circuit.So my questi...

Peng · 2023-04-04

Hello Jan,Thank you for your reply.

Peng · 2023-04-04

Peter,Thank you for your reply

Peng · 2023-04-04

Hello Peter,Thanks for your reply, this test was done by a laboratory, since the button cell is made by lithium-ion, so the laboratory considered the button cell as a lithium-ion battery. If there is an internal short circuit on the VBAT pin, there ...

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STM32F429ZI VBAT pin characteristics to resist short-circuit

Re: STM32F429ZI VBAT pin characteristics to resist short-circuit

Re: STM32F429ZI VBAT pin characteristics to resist short-circuit

Re: STM32F429ZI VBAT pin characteristics to resist short-circuit

Re: STM32F429ZI VBAT pin characteristics to resist short-circuit