300 mA charge current for compact Li-ion designs
The MAX77734BENP+T is a 1-cell Lithium Ion/Polymer battery charger IC from Analog Devices' Smart Power Selector™ series, delivering up to 300 mA programmable charge current. That charge rate suits wearable and IoT devices where the battery capacity is under 500 mAh — the 0.5C to 1C charge rate keeps the cell within its safe charging envelope without excessive heat in the 20-WLP package.
I²C-programmable voltage and current
Charge parameters are set over an I²C interface — the MAX77734BENP+T supports programmable charge current and battery regulation voltage up to 4.6 V max. The constant-current constant-voltage (CC/CV) profile is handled internally; the host only writes the target values via the serial bus. Supply voltage max is 5.5 V, which covers standard USB bus power (5 V nominal) with margin for cable drop.
The part is ROHS3 compliant.