macdonaldtomw
Member
I have a project in which I am mounting the Teensy 3.1 onto a custom fabricated PCB. I would like to be able to charge my Lithium Ion battery through the Teensy 3.1 USB port. I have cut the VUSB trace from Vin on the Teensy, and am planning on mounting a header that will plug into the PCB, connecting the PCB to the VUSB pin.
The current would then flow from VUSB into my charge controller sub-circuit.
My question is: how much current can I safely draw continuously through the Teensy VUSB pin?
This Teensy LiPo charger add-on from tindie.com seems to draw only 100 mA through the VUSB pin. Is this the max?
Here is a schematic showing how I intend to connect the VUSB pin of my Teensy through a diode to my Li-On Battery charger sub-circuit:
The current would then flow from VUSB into my charge controller sub-circuit.
My question is: how much current can I safely draw continuously through the Teensy VUSB pin?
This Teensy LiPo charger add-on from tindie.com seems to draw only 100 mA through the VUSB pin. Is this the max?
Here is a schematic showing how I intend to connect the VUSB pin of my Teensy through a diode to my Li-On Battery charger sub-circuit: