LM5066I: multi lm5066i on the same I2C, how to connect individual VDDs

Hi Rakesh,

Thank you for your recommendation.

per you comment, I will move I2C pullup ressitors to the host side power supply.

the project is to plan use LM5066i as a power switch to distributes power from the same power supply to some instruments, all LM5066i have the same Vin.

the telemetry data will give info about the status of each instruments. 

there will be up to 16 LM5066i in the project.

the other question is about LM5066i-EV schematic. 

if I move I2C pullup resittors to host side ( host microntroller power supply), does 3.3V pullup power okay?

does the isolation resistor (  LM5066i-EV schematic  100ohm ???_iso resistor) can be removed?

Best regards!

Tom

Hello Avishek,

Thank you for your help.

the schematic I reference to is

https://www.ti.com/tool/LM5066IEVM-626 on page 24

if I move the pull resistors or I2C host side power supply,  does the resistors of R19, R20 can be removed?

I attached my design schematic here

my requirements are:

when plug in, the breaker should be off, and I put a type B relay to disable LM5066i, a I2C I/O to control individual LM5066i  UVLO/EN.

all LM5066i has the same input voltage, up to 16 LM5066i in the unit.

battery_breaker1.pdfbattery_breaker2.pdfbattery_breaker3.pdfbattery_breaker4.pdf