Hi everyone, I want to add a battery and charging to my project. I was looking at a chip like: MCP73831 (http://ww1.microchip.com/downloads/en/DeviceDoc/20001984g.pdf)
I pasted the typical application, and was just wondering how best to attach this to teensy 3.6
My plan is to take VUSB (TEENSY) and put it in VIN (MCP73831). Then for output to connect VBAT (MCP73831) to VIN (TEENSY). And of course cutting the VUSB/VIN (TEENSY) jumper.
Since I am pretty clueless I looked at the Adafruit Teensy adapter (https://github.com/adafruit/Adafruit-Teensy-3.x-Feather-Adapter-PCB/blob/master/schematic.png) which uses the same chip, but I see that my plan is not what Adafruit appear to do. They seem to just use VIN (Teensy). And I am quite confused now how their circuit even works.
This is how Sparkfun do it for a standalone charger (https://cdn.sparkfun.com/datasheets/Prototyping/SparkFun_Lipo_Charger_Basic-microUSB_v10.pdf) , which makes more sense to me, but can't imagine how to hook the Teensy up to this.
Thanks for any help as always.
I pasted the typical application, and was just wondering how best to attach this to teensy 3.6
My plan is to take VUSB (TEENSY) and put it in VIN (MCP73831). Then for output to connect VBAT (MCP73831) to VIN (TEENSY). And of course cutting the VUSB/VIN (TEENSY) jumper.
Since I am pretty clueless I looked at the Adafruit Teensy adapter (https://github.com/adafruit/Adafruit-Teensy-3.x-Feather-Adapter-PCB/blob/master/schematic.png) which uses the same chip, but I see that my plan is not what Adafruit appear to do. They seem to just use VIN (Teensy). And I am quite confused now how their circuit even works.
This is how Sparkfun do it for a standalone charger (https://cdn.sparkfun.com/datasheets/Prototyping/SparkFun_Lipo_Charger_Basic-microUSB_v10.pdf) , which makes more sense to me, but can't imagine how to hook the Teensy up to this.
Thanks for any help as always.
Last edited: