The bq20z45 is an integrated circuit chip
The bq20z45 chip and bq20z65 are single-package ics with integrated battery protection, while the bq20z40 and bq20z60 are dual-package ics that require the bq29330 analog front-end device. The bq20z6x series supports LED functions. Full configurability of all JEITA parameters:
It can be configured according to temperature, charging current and charging voltage
The bq20z45 chip is an integrated circuit battery management chip.