LM5069: I want to eliminate the current leakage from LM5069

Hi Teddy,

Thanks for reaching out.

We have not tried that way for LM5069 device. Let me check with the team and get back to you in couple of days.

Best Regards,

Rakesh

Hi Rakesh,

Thans for your support.

Best Regards,

Teddy

Hi Teddy,

LM5069 device architecture will not support breaking the device path ground. The VDS measurement circuit provides a path to Vout and could leak current from Vin. It is not recommended.

Can you let me now your target IQ_OFF current and Why it is important ?

Best Regards,

Rakesh

Hi Rakesh,

I used LM5069 and LM5050 in power management products in ORing system which has two batteries.Our customers may lay our products aside when there is no need to use them for a long time even though the products have no power.When the power is used up,it is hard to recharge the products.So we want to lower the whole leakage current down to 1mA.The lower the better.

Best Regards,

Teddy

Hi Teddy,

Thanks for the details. 

Can you quickly share few more details  such as operating voltage, max voltage, max load current  to check alternate suitable solutions.

Best Regards,

Rakesh

Hi Rakesh,

operating voltage:48V

max voltage：57.6V

minimum voltage:32V

max load current:55A

When the battery goes to 32V,the power is 0%.But it will overdischarge if the IQ current exsits.   

Best Regards,

Teddy