Other Parts Discussed in Thread: LM5170
HI. I am Duho Kim and I want to use LM5170-Q1 in a High Voltage bidirectional buck-boost converter application.
Because LM5170-Q1 is developed for 12V-48V converter, so I need some modification to use it.
The Lowside voltage is about 300V and shunt resistor is on the LV PORT like datasheet.
But the voltage is larger than CSAX, CSBX rating. (65V MAX)
So I considered some circuit like figure below.
By using AD8212 and some DC supply for offset(OPAMP BUFFER OR SOMTHING..), I can sense the LV PORT inductor current within the rating voltage.
I have questions about it.
1. Can these circuit be possible to use with LM5170-Q1?
2. How can I decide the offset voltage?
Thank you so much.