CN3300 Datasheet | CONSONANCE

Description : The CN3300 is a step up battery charger controller IC which operates from an input voltage of 4V to 28V. The CN3300 includes on-chip reference voltage, +5V voltage regulator, inductor current sensing, battery voltage monitoring and N-channel MOSSFET driving blocks, etc, which makes the CN3300 easy to be used with few external ponents. The CN3300 enter charging mode on power up, the external N-channel MOSFET is turned on, when the inductor current rises to the upper limit, the N-channel MOSFET is turned off, then inductor current begins to fall, the energy stored in inductor is transferred to the battery. When inductor current falls to the lower limit, the external N-channel MOSFET is turned on again, and a new cycle starts. Battery voltage is feedback to FB pin via the external resistor divider, when the voltage at FB pin reaches 1.205V(Typical), the charging is terminated, the external N-channel...