Texas Instruments BQ24153 Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB-Compliance, VOVP=6.5v BQ24153YFFT

The BQ24153YFFT-ND is a fully integrated switch-mode battery charger designed for single-cell Li-Ion and Li-Polymer batteries. It features a compact 20-pin WCSP package and supports USB compliance with USB-OTG functionality. The device operates with an input voltage range from 2.5V to 4.5V and can handle a maximum charge current of 1.25A. It incorporates high-accuracy voltage and current regulation, with a charge voltage regulation accuracy of ¬±0.5% at 25¬8C and ¬±1% across a temperature range of 0¬8C to 125¬8C. The charger employs a three-phase charging process: conditioning, constant current, and constant voltage, and includes features such as thermal regulation, input current limiting, and automatic charging. It also provides robust protection mechanisms, including input/output overvoltage protection and reverse leakage protection to prevent battery drainage. The programmable charge parameters can be set via an I¬=C interface, allowing for customization of charge current and voltage settings. This product is suitable for applications in mobile devices, smart phones, and handheld devices, making it a versatile choice for engineers looking for an efficient battery management solution.