FAQ

Super interesting device! Only couple questions:1) on page 13 of the datasheet the last sentence says "MPPT configuration pins MPPT[1:0] are connectedto GND and configured to 70%" ...

userHead JaneYu 2024-07-26 15:53:36 621 Views1 Replies

Super interesting device! Only couple questions:
1) on page 13 of the datasheet the last sentence says "MPPT configuration pins MPPT[1:0] are connected
to GND and configured to 70%" but table 6 shows that with MPTT[1:0] set to 0 0 mptt ratio is set to 90%
2) the example circuit on page 13 shows the SET_OD, SET_CR, SET_OC shorted together and left floating, but on page 11 is said that these pins should be left floating ( and I assume not connected together ) when using predefined modes, are both ok?

2024-08-29 14:38:36

This product is currently on sale.
This kit and module is our new product, the chip inside the current version is not e-peas, but the function is very close.

userHeadPic JaneYu
2024-07-30 11:49:44

1)MPTT[1:0] set to 0 0 mptt ratio is set to 70% .
2)SET_OD, SET_CR, SET_OC should each be kept floating.
Thank you for your question, we have fixed the problem in the datasheet, please download the latest V1.2 datasheet to check it!

userHeadPic JaneYu
2024-07-26 17:56:26

Forgot to add that in the datasheet there is no specification for quiescent currents, would be nice to know ldo's quiescent current and also of the whole cirquit

userHeadPic JaneYu
2024-07-26 16:08:48

Agreed, a radio frequency energy harvesting example would be very interesting!
I propose 2 different scenes:
1) 50/60Hz harvester ( for indoor use )
2) LW wave harvester ( for outdoor use )
3) wide range RF harvester ( for indoor/outdoor use )

P.S.
Yes I said 2... but also the three musketeers where four ; - )

userHeadPic JaneYu
2024-07-01 14:27:19

The MPPT configuration of the DFM8001 is not efficient at RF energy harvesting, but can still harvest RF energy. Our R&D team is working on a variety of new weak energy harvesting products to efficiently harvest all types of environmental energy.

userHeadPic JaneYu