Li-ion battery protectors guard against overcurrent and overcharging

Littelfuse now offers the ITV Series, a three-terminal, surface-mountable li-ion battery protector created to guard against the damage created by both overcurrent and overcharging. The innovative design gives a fast response and stable performance to interrupt the charging or discharging circuit before the battery pack becomes overcharged or overheated.

Offered in five compact, surface-mount packages, the series product line is provided in current ratings of 12A, 15A, 30A and 45A.

“The ITV Series is an important addition to our li-ion battery protection portfolio, helping solve customer applications requiring current ratings from 12A to 45A,” said Stephen Li, global product manager at Littelfuse. “Here’s how it works: An embedded fuse element cuts off the circuit when overcurrent issues occur. A heater element, directly embedded under the fuse element, generates enough heat to blow the fuse once overcharging is detected by IC or FET.”

The combination of robust overcurrent/overvoltage protection and surface mountable packaging is ideal for li-ion battery packs employed in power tools, robotic appliances, e-bikes and e-scooters, UPS, emergency radio and eCall.