TPS62873-Q1: How to measure current of TPS62873-Q1 in a stacked configuration

Hi Zehui,

How many devices are you stacking up on your application? Each device can support max 15A. 

Best regards,

Tanvee 

Hi Tanvee,

     Two applications of TPS62873 in my board. One is 2 TPS62873 in a stacked configuration and the other is 3. When using a single DCDC, current can be measured from the inductor. When using multiple devices, I wonder how to do that? I only have one clamp meter.

Hi Zehui,

All stack devices output is connected to primary device. you can measure the total current there. where load is connected to primary device.

It is good to measure the transient performance on remote sense connect to get accurate results. 

We have evaluation board :  TPS62873-Q1 (2x stack) and it is good to measure on J2 in that schematic. 

Best regards,

Tanvee 

Hi Tanvee,

     We use PMIC and TPS62873 for SOC supply. Lots of power pins are the load. It's more hard to measure from the load side.

Hi Zehui,

Can you share schematic and Layout ? that can help to sugget where you can measure the current.

If its confidential please share through mail. I will share my mail id with you.

Thanks,

Tanvee

Hi Tanvee,

     I send you an email.

Hi Tanvee,

   In fact, I didn't really understand your method. So I asked a question about your method by email. I'm looking forward to your reply. 

Hi Zehui,

I have replied you offline.

Thanks,

Tanvee