Battery management, protection, and USBc/PD subsystems for the TH-1.
Teahaz 1: Battery Management Subsystem
-
STUSB4500 USBc controller with automatic (firmware based) PD negotiation capabilities from ST. This chip is responsible for providing safe and fast charging charging profiles over USBc. https://www.st.com/resource/en/datasheet/stusb4500.pdf
-
BQ25798 Battery charger and buck converter up to 5A from TI. THis chip is responsible for both charing the batteries safely and providing a steady voltage for the rest of the device. https://www.ti.com/lit/ds/symlink/bq25798.pdf
-
BQ27441-G1 Fuel guage chip for accurately measuring battery capacity. Such chips are more accurate than voltage measurement which does not account for battery degradation. http://www.ti.com/lit/ds/symlink/bq27441-g1.pdf
-
BQ297xy Extra battery protections because I don't like fires. http://www.ti.com/lit/ds/symlink/bq2970.pdf