CW1244AFAS Integrated Circuit | CELLWISE – Battery Protection IC for 3–4 Cell Li-Ion/Polymer Packs

The CW1244AFAS from CELLWISE is a highly integrated battery protection IC designed for 3 to 4 series-connected lithium-ion or lithium-polymer battery packs. It offers comprehensive safety and reliability features by continuously monitoring voltage, current, and temperature, ensuring safe operation of battery systems.

In addition to protection, the CW1244 series includes cell balancing functionality to extend battery life and open-wire protection to enhance safety during operation. This makes it an excellent solution for portable electronics, power tools, and energy storage systems requiring robust battery management.

Key Features

• Supports 3 to 4 series-connected Li-ion / Li-Polymer cells

• Complete protection: Over-voltage, under-voltage, over-current, short-circuit, and over-temperature

• Cell balancing to maximize battery pack lifetime

• Open-wire protection for added safety

• Integrated monitoring of voltage, current, and temperature

• High reliability for battery management systems

Applications

• Rechargeable battery packs (3S–4S)

• Portable consumer electronics

• Power tools

• Energy storage systems

• E-mobility solutions (e-bikes, scooters, etc.)