STBC08 High-Current LiPo Battery Charger

Last crawled date: 1 year, 12 months ago

This is a new version of LiPo charger add-on board for the Teensy 3.X based on ST Microelectronics' STBC08 linear battery charger. The charger provides the option of 300, 500 (default), or 800 mA charge current.

For 300 mA, close the solder jumper marked 300 mA and cut the trace between the solder jumper pads marked 500 mA. For 500 mA, do nothing! For 800 mA, simply close the solder jumper marked 300 mA. If you cut the trace and wish to return to 500 mA, then you have to close the left solder jumper and open the right one. Consult the data sheet and the schematic; it's really quite simple once you have a look.

This LiPo battery charger add-on has the same convenient form factor as the popular original LiPo battery charger add-on based on the MAX1555. It mounts onto the Teensy in the same way and is functionally identical except it has no DC input and provides a greater range of charge currents. The new charger, like the old, has a red led to indicate charging, a green led to indicate power is supplied to VIN (chosen by using the slide switch), but also has a yellow led indicator for USB power good. This latter is useful to alert you to noise on the USB line, a frayed or damaged USB cord, or just the wrong USB input voltage.

The slide switch which controls power to the Teensy is improved with lugs to make the switch more robust and less prone to tearing off with rough handling.

Overall, this is a significantly improved version of a popular product that makes all of your Teensy projects easier and more convenient!

https://www.tindie.com/products/onehorse/stbc08-high-current-lipo-battery-charger/