It delivers up to 1.5A charge current, programmable via I²C, making it suited for portable devices where the host microcontroller adjusts the charge rate based on input power availability or thermal conditions. The charger integrates fault protection for over-temperature, over-voltage, and short-circuit conditions, which simplifies the BOM by replacing external supervisor circuitry for Li-Ion safety.
1.5A charge current — thermal and layout considerations
At the 1.5A maximum charge current, the 24-VFQFN package with exposed pad (4x4 mm body) needs a solid thermal via pattern under the pad to keep junction temperature within limits, especially if the input supply is near the 6V maximum and the battery voltage is low. The charge current is constant and programmable via I²C, so the designer sets the rate in firmware rather than with an external resistor. This allows dynamic adjustment — reducing current when the IC temperature rises or when a weak USB source is detected.
Active lifecycle, ROHS3 compliant
ROHS3 compliant, lead-free. The base product number is BQ24270; the RGET suffix denotes the 24-VQFN package and tape-and-reel / cut-tape shipping options.