Greetings,
I am unfortunately at a very novice level in my electronics hobbyist skill-set but trying diligently to make forward progress. I am currently working on a small part of a much larger project, but am looking for some level of comfort with what I've done thus far before moving on. Enclosed is a small schematic that includes all necessary wiring for an MCP73831 LiPo charging circuit. I feel like I've met the requirements of the datasheet for a 500mA charging circuit (my single cell battery is a 18650 - 3.7v - 2.6Ah) but honestly datasheets are still written in a language that feel I only pretend to understand.
Anyway, if someone with more experience wouldn't mind just peeking and making sure things look right, I would really appreciate it. VBATT will go to the battery + and the battery - will connect to the common ground.
The only thing I'm not really understanding about what I've done in this circuit is the STAT to two LED wiring. Page 15 of (http://ww1.microchip.com/downloads/en/DeviceDoc/20001984g.pdf) says STAT is a tri-state (High, Low, and High Impedance) but I still do not see how the red (D1) LED doesn't come on in both situations.
Thank you in advance!
View attachment MCP73831_1.pdf
I am unfortunately at a very novice level in my electronics hobbyist skill-set but trying diligently to make forward progress. I am currently working on a small part of a much larger project, but am looking for some level of comfort with what I've done thus far before moving on. Enclosed is a small schematic that includes all necessary wiring for an MCP73831 LiPo charging circuit. I feel like I've met the requirements of the datasheet for a 500mA charging circuit (my single cell battery is a 18650 - 3.7v - 2.6Ah) but honestly datasheets are still written in a language that feel I only pretend to understand.
Anyway, if someone with more experience wouldn't mind just peeking and making sure things look right, I would really appreciate it. VBATT will go to the battery + and the battery - will connect to the common ground.
The only thing I'm not really understanding about what I've done in this circuit is the STAT to two LED wiring. Page 15 of (http://ww1.microchip.com/downloads/en/DeviceDoc/20001984g.pdf) says STAT is a tri-state (High, Low, and High Impedance) but I still do not see how the red (D1) LED doesn't come on in both situations.
Thank you in advance!
View attachment MCP73831_1.pdf