BQ25570EVM-206: BQ25570EVM 3V output

Hi Kami,

The VSTOR=VBAT must be higher than 2V since it is a boost converter.  EVM resistors R1 and R2 on VBAT_OV pin set VSTOR=VBAT.  EVM resistors R9 and R10 on the VOUT_SET pin set the buck converter output if used.  The attached xls helps you the closest size resistors with which to replace the EVM resistors.

Regards,

Jeff   

Hello Jeff,

I can not see your attached excel file. Would you please give me a private message(Email). The other question how to set up JP1,JP2,JP3,JP5,JP4,JP6.

Our setting is 

JP2= close.

JP3 = VSTOR

JP6= open.

JP1=open

JP4= 50%

Best Regards,

Kami Huang

Hello Jeff,

I ask the customer to set the BQ25570EVM according to your suggestion. And ask him to measure the voltage of VOSTOR (J5) and Vout (J11).
It is found that Vout =1.9V. VOSTOR=3.0V.
The customer's system (Vsys) needs a 3.0V power supply.
Can I ask the customer Vsys to connect to VOSTOR?
Another question is, does BQ25570 have DPPM (Dynamic Power Path)?

Best Regards,

Kami Huang

Hello Jeff,

Let me check you another Question.

If Vin’s power is insufficient, will BQ25570 automatically draw power from Battery to supply it to Vsys?

Best Regards,

Kami Huang