CN3795

CONSONANCE 4A, Multi-Chemistry Battery Charger With Photovoltaic Cell MPPT Function CN3795 General Descriptions: The CN3795 is a PWM switch-mode multi-chemistry battery charger controller that can be powered by photovoltaic cell with maximum power point tracking function using few external components. The CN3795 is specially designed for charging lithium ion，LiFePO4 or Lithium Titanate batteries with constant current and constant voltage mode. In constant voltage mode, the regulation voltage is set by 2 external resistors. The constant charging current is programmable with a single current sense resistor. Deeply discharged batteries are automatically trickle charged at 17.5% of the programmed constant charging current until the cell voltage exceeds 66.5% of constant voltage. The charge cycle is terminated once the charging current drops to 16% of full-scale current, and a new charge cycle automatically restarts if the charge current rises above 58.8% of full-scale charge current. C...