Smart Power Switches Forum Discussions

[User22278]

Hi all, I am trying to set a current limiter circuit with BTS7002 but I couldn't understand how to select Rıs value to a fixed current limit value. I read the datasheet but I couldn't understand. Could anyone help me?

[G_Anshika]

Hi,

I have understood that you are looking for Rsense value as shown in the below figure (marked in red box) : 

The sense resistor Rsense must be connected between IS pin and module ground if the current sense diagnosis is used. Rsense value has to be higher than 820 Ω to limit the power losses in the sense circuitry.
A typical value is Rsense = 1.2 kΩ.

Best Regards,
Anshika