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Power Management

Q&A LTC3891 support 12V/20A

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LTC3891 support 12V/20A

PChen833 on Jan 21, 2020

Hello

Could LTC3891 support 54VIN to 12V/20A (non-isolate) ? What is max OCP of LTC3891? Thank you.

BR

Patrick

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ADIApproved
Jan 21, 2020 +1 verified
The maximum current is defined by value of the current sense resistor (or DCR). Regarding possibility of generating 12V at 20A, please consult the local ADI representative.
Fil
Jan 30, 2020 in reply to PChen833 +1 verified
Yes. DC1940A demo board is closest your specs using a 3 milli ohm sense resistor.

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+1 ADIApproved

on Jan 21, 2020 2:03 PM
The maximum current is defined by value of the current sense resistor (or DCR). Regarding possibility of generating 12V at 20A, please consult the local ADI representative.
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0 PChen833 on Jan 22, 2020 3:44 AM in reply to ADIApproved

Hello

So LTC3891 function can achieve 12V/20A just need to modify peripheral component include current sense resistor, right? Thank you.

BR

Patrick
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+1 Fil

on Jan 30, 2020 2:52 AM in reply to PChen833
Yes. DC1940A demo board is closest your specs using a 3 milli ohm sense resistor.
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+1 Fil

on Jan 30, 2020 2:52 AM in reply to PChen833
Yes. DC1940A demo board is closest your specs using a 3 milli ohm sense resistor.
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