MAX38890AEVKIT

Product Details

The MAX38890A evaluation kit (EV kit) evaluates the MAX38890 supercapacitor backup regulator, which is designed to transfer power between a supercapacitor and a system supply rail. When the main battery is present and the system voltage is above the minimum system voltage for charging, the MAX38890 charges the supercapacitor with a maximum average current of 2.5A.

Once the supercapacitor is charged, the circuit draws only 4μA of current while it maintains the supercapacitor in its ready state. When the main battery is removed, the MAX38890 draws power from the supercapacitor and regulates the system voltage to the set backup voltage with a programmed maximum peak inductor current of 5A. The MAX38890 is externally programmable for maximum supercapacitor voltage, system backup voltage, peak charging, and backup inductor currents.