According to the datasheet, the LP5907 regulator that is connected to the battery by diode D9 is rated for a maximum operating voltage of 5.5V with 6V the absolute maximum?
The kit comes with a 6V battery pack, so that seems to be OK. What I don't understand is the 6-14V range for the input voltage.
Hi Chessweb, it does look like you've found a typo. Thanks. I'll cc our webmaster and have the OpenBCI store page corrected. The 6-14v figure was probably just copied over from the 8-bit board page. That board has a 5v regulator sitting in front of all the other power related parts, and it is rated up to 16v input. So on that board all the next level regulators are getting + or - 5v as their inputs.
On the 32 bit board as you saw, an LP5907 (3.3v out) is sitting in front of the other regulators.
Comments
In the OpenBCI store they say the input voltage for the board is 6-14V (see https://openbci.myshopify.com/collections/frontpage/products/openbci-32-bit-board-kit).
According to the datasheet, the LP5907 regulator that is connected to the battery by diode D9 is rated for a maximum operating voltage of 5.5V with 6V the absolute maximum?
The kit comes with a 6V battery pack, so that seems to be OK. What I don't understand is the 6-14V range for the input voltage.
On the 32 bit board as you saw, an LP5907 (3.3v out) is sitting in front of the other regulators.
William