What this single-cell Li-Ion charger does
The MAX8606ETD+T is a single-cell Li-Ion/Polymer battery charger IC from Analog Devices, designed to charge a 4.2V battery pack at up to 1A programmable constant current. It integrates over-voltage and over-temperature fault protection, so the charge cycle terminates safely if the cell voltage exceeds the regulation point or the die temperature rises above the threshold. The USB interface means the charger can draw power directly from a USB port — the input supply max is 5.5V, which covers standard USB bus voltage (5V nominal) with margin for cable drop.
Charge current and thermal envelope
The 1A max charge current is programmable, so you can set a lower rate for smaller cells or to stay within the thermal budget of the 14-TDFN (3x3mm) package.
Package and board integration
Housed in a 14-WFDFN exposed pad package, the MAX8606ETD+T is a surface-mount device with a 3x3mm footprint. Cut Tape works for prototyping or low-volume builds.