Multi-chemistry charger with I²C control
The Texas Instruments BQ24765RUVR is a multi-chemistry battery charger IC that handles 2 to 4 series cells with a maximum battery pack voltage of 19.2 V. It supports constant-current programmable charging up to 8.064 A, making it suitable for fast-charging applications in notebooks, tablets, and portable industrial equipment. The I²C interface allows the host controller to set charge current, voltage thresholds, and fault limits dynamically — useful for systems that need to adjust the charge profile based on battery temperature or input power availability.
Protection and temperature range
Built-in fault protection covers over-current and over-temperature conditions, reducing the need for external supervisory components. The maximum supply voltage is 24 V, so the input rail should be regulated to stay below that ceiling — a common design point for a 19 V adapter with some margin for transients.
Package and assembly
Housed in a 34-VFQFN exposed pad package (supplier device package 34-VQFN 7x3.5 mm), the BQ24765RUVR is surface-mount and available in tape and reel or cut tape options.