It accepts a supply voltage up to 28V, making it suitable for industrial and automotive battery management systems where the input rail can vary widely.
Multi-chemistry charging: one BOM for multiple battery types
Because the LTC4012IUF#PBF supports multi-chemistry charging, a single board can handle Li-Ion, LiFePO4, NiMH, or lead-acid packs by changing the charge termination algorithm in the external controller. That saves a board spin when a customer switches battery chemistries mid-production. The constant programmable current lets you set the charge rate with a single resistor — no firmware dependency for the current limit.
The 20-QFN package with exposed pad helps pull heat into the PCB copper plane — make sure the thermal vias are sized for the charge current you plan to run.