RichTek Technology Corporation PMIC - Battery Chargers RT9526AGE

The RT9526AGE is a linear single-cell Li-Ion battery charger designed for portable applications. It supports input from both AC adapters and USB ports, with a maximum input voltage rating of 28V. The charger features integrated power FETs and includes protections against under-voltage and over-voltage conditions. The charging process is optimized through a control algorithm that includes preconditioning, fast charge, and constant voltage modes, ensuring efficient battery management. The charge current can be programmed using an external resistor, and the device incorporates thermal feedback to regulate the die temperature for optimal charging performance. The RT9526AGE is available in compact WDFN-8L 2x3 and SOT-23-6 packages, making it suitable for space-constrained designs. Applications include cellular phones, digital cameras, PDAs, and other portable instruments.