Texas Instruments BQ24292I I2C Controlled 4.5A Single-Cell USB/Adapter Charger With Narrow VDC Power Path Management BQ24292IRGER

The BQ24292IRGER is an I2C controlled, high-efficiency switch-mode battery charger designed for single-cell Li-Ion and Li-Polymer batteries. It supports a maximum charge current of 4.5A and features a narrow VDC power path management system, which allows for seamless operation even when the battery is deeply discharged or absent. The device operates within an input voltage range of 3.9V to 17V and is compliant with USB 2.0 and USB 3.0 power specifications, making it versatile for various applications including smartphones, tablets, and portable media devices. The charger achieves high efficiency, with up to 92% at 2A and 90% at 4A, and includes features such as battery temperature sensing, safety timers, and thermal regulation to ensure safe operation. It also incorporates an I2C interface for flexible configuration and monitoring, and supports USB On-The-Go functionality with a synchronous boost converter. The device is packaged in a compact 24-pin VQFN format, suitable for space-constrained designs. Overall, the BQ24292IRGER is a robust solution for engineers looking to implement efficient battery charging in portable electronics.