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Standalone Linear Li-Ion battery charger with Thermal Regulation
CE3150 Series
INTRODUCTION:
The CE3150 is a complete constant-current constant-voltage linear charger for single cell Li-Ion batteries. It’s SOT package and low external component count make the CE3150 especially well-suit for portable applications. Furthermore, the CE3150 is specifically designed to work within USB Power specifications. No external sense resistor is needed and no blocking diode is required due to internal MOSFET architecture. Thermal feedback regulates the charge current to limit the die temperature. The charge voltage is fixed at 4.2V and the charge current can be programmed externally with a single resistor.