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LTC3897 Boost Controller Voltage Input Range

Question asked by nilsjohan on Jun 1, 2018
Latest reply on Jun 5, 2018 by GPerica

I want to use the LTC3897 Boost Controller with input range from 9V to 32V and an output of 48V.
I have the DC2108A Demo Board which supports inputs from 16V to 55V and output of 48V.

 

There is a reference design in the LTC3891 datasheet that claims to support inputs from 6V to 55V with output of 48V, but that design seems very similar to the demo board circuit. I cant figure out what parameter determines the input voltage range.

 

LTC3897 Datasheet: http://www.analog.com/media/en/technical-documentation/data-sheets/3897f.pdf
DC2108A Demo Board: http://www.analog.com/media/en/dsp-documentation/evaluation-kit-manuals/DC2108AF.PDF

 

Best Regards
Johan

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