3-cell, 4A, multi-chemistry charger in 16-SSOP
The MAX1873SEEE+T is a multi-chemistry battery charger IC from Analog Devices, designed to charge a 3-series cell pack to a target voltage of 12.6V. The input supply can go up to 28V, giving headroom for unregulated wall adapters or automotive rails.
Parametric fit for 3-series Li-ion packs
The 12.6V battery pack voltage is exactly 4.2V per cell for three series cells, the standard full-charge voltage for Li-ion. The 4A max charge current means a 3-cell pack of ~3000 mAh can be charged at roughly 1.3C, which is a reasonable fast-charge rate. The 28V supply maximum allows the charger to operate from a 24V adapter with margin, or from a 19V laptop-style brick. Multi-chemistry support means the same IC can be configured for Li-ion, Li-poly, or NiMH chemistries by adjusting the charge voltage and current programming resistors — useful for a product line that spans different battery types.
Active production, ROHS3, tape-and-reel
It is ROHS3 compliant. For volume BOM commitments, the part is sourced to order against your quantity.