Li-Ion charger for 1-4 cells in a 20-SSOP
The MAX745EAP+T is a constant-current, programmable Li-Ion battery charger IC handling 1 to 4 series cells with a maximum charge current of 4A. It accepts a supply voltage up to 24V and charges a battery pack up to 18V, suiting multi-cell power tool or portable equipment designs.
Active production, ROHS3, and the 20-pin SSOP footprint
Tape-and-reel and cut-tape options are listed, giving flexibility for prototype quantities and production reel sizes.
Temperature range and charging control
Charging current is constant and programmable, allowing the designer to set the charge rate via an external resistor or control signal rather than relying on a fixed internal limit. With a 4A max charge current and support for 1-4 cells, this part sits in the mid-to-high-power segment of single-chip Li-Ion chargers — above the 1-2A linear chargers but below multi-phase or external-FET designs.