This reference manual provides a detailed description of bq20z60-R1/bq20z65-R1 battery management ICs, including protection features, gas gauging, charge control, LED display, device operating mode, etc.
This technical reference describes the bq20z60-R1 and bq20z65-R1 battery‑management ICs, detailing their protection functions, gas‑gauging operation, and communication interfaces. It is intended for engineers designing complete battery pack solutions.
The document includes sections on JEITA temperature ranges, 1st‑ and 2nd‑level protection features, charge control, LED display configuration, device operating modes, security, calibration, and a full list of SBS and extended SBS commands with data‑flash subclasses.
| JEITA temperature compliance | Supports JEITA‑defined charging temperature ranges |
|---|---|
| Cell Overvoltage/Undervoltage protection | Detects over/undervoltage and switches off CHG/DSG FET |
| SMBus communication | Implements SMBus commands and slave address |
| Gas Gauging modes | Multiple gas‑gauge modes and Qmax tracking |
The device follows JEITA guidelines with four ranges: low (T1‑T2), standard 1 (T2‑T3), standard 2 (T3‑T4), and high (T4‑above), configurable via JT1‑JT4 constants.
It detects an overvoltage condition and, after an adjustable time, switches off the charge/discharge FET; it recovers when the voltage falls below the recovery threshold.
The IC uses the SMBus protocol, with a defined slave address and a full set of SBS commands.