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STM32L443VCT LCD internal step-up converter supports minimum 2.6V supply. Does that mean LCD will work up to MCU minimum operating voltage i.e.; 1.6V and internal step-up converter will boost the voltage to required minimum LCD operating voltage?

SSing.71
Associate II
 
1 ACCEPTED SOLUTION

Accepted Solutions
Peter BENSCH
ST Employee

The function is guaranteed for the STM32L443VCT for a minimum VDD of 1.71V (data sheet, section 6.3.1).

Yes, if the internal step-up converter is used, a constant LCD voltage can be generated independent of VDD, even from the minimum voltage of 1.71V mentioned above.

Does it answer your question?

Regards

/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

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3 REPLIES 3
Peter BENSCH
ST Employee

The function is guaranteed for the STM32L443VCT for a minimum VDD of 1.71V (data sheet, section 6.3.1).

Yes, if the internal step-up converter is used, a constant LCD voltage can be generated independent of VDD, even from the minimum voltage of 1.71V mentioned above.

Does it answer your question?

Regards

/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
SSing.71
Associate II

Yes, that answers my question.

Thank you for your support.

Regards,

Shalu

Great!

If the problem is solved, please mark this thread as answered by selecting Select as best, as also explained here. This will help other users find that answer faster.

Regards

/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.