The device integrates fault protection for over current, over temperature, and over voltage conditions, making it suitable for applications where safe charging is critical.
Charge current and thermal budget
The 1A maximum charge current is programmable via the I²C interface, along with charge timer and voltage settings.
Protection features for single-cell designs
The BQ25619RTWT includes over current, over temperature, and over voltage fault protection. For a single-cell Li-Ion/Polymer battery, the over voltage threshold at 4.52V protects against overcharge, while the over temperature protection shuts down charging if the die exceeds safe limits — important in compact enclosures where thermal coupling to the battery is tight.