Category: Hardware
Product Number: LT8292
Hello,
I am using an LT8292 and also a LTC7891 in a design. The LTC7891 explicitly calls out inductor DCR current sensing as a technique to avoid use of a discrete shunt, as well as a detailed procedure for choosing the corresponding passive components. The LT8292 doesn't mention that technique in its datasheet. Can I use the same technique for the LT8292, or is this not recommended for a specific reason? The inductor DCR (3.8-4.3mOhm) is much larger than the resistance of any shunt I would want to use (~1mOhm) so this would provide a larger signal for the current control. Obviously the inductor DCR is less precise, but I don't have a sense of how to trade-off these attributes.
Thanks!
Sam
