Hi team,
customer need a voltage shift for 3.3V to 5V. they want to know how to select pull up resistors of LSF0102. They use 200k pull up resistor for EN pin, and found that the high voltage level of B side is only about 4.3V. how to improve the B side output voltage? can we use low value resistor?
In the datasheet, LSF0102 can be used in open drain and push-pull,so I want to know, what's the output voltage if not add pull up resistors?
what's the inside structure of LS0102. thanks!
Hi Betty,
We have training videos that cover the LSF family. They should answer the questions you asked, see below:
Hi Betty,
The datasheet states this:
The video was suppose to help understand the reason behind the required 200k resistor and also give you an idea of the internal structure. They also help explain the operation of the device itself during up and down translation. I think there is some confusion still with the device operation, but I can better help if you are able to share a schematic. That way I can see how they are implementing the device into their system.
