Cell Balance LSI for Automotive

The BD14000EFV, by ROHM, is a Cell Balance LSI with built-in self-controlled cell balance features circuit. The device also has a built-in shunt-type power storage element balancer function that can respond from 4 to 6 cells. This LSI features all necessary in a cell balancer are built-in, making power storage element cell balancing possible. 

This chip can be used for electric double layer capacitors (EDLC) with cell detection voltage range of 2.4 V to 3.1 V and power storage capacitors which is important for cell balancers with similar electrical characteristics.

It has a built-in multiple over-voltage detection function and can also detect abnormal mode such as any characteristic deterioration in cells.

Also, application-dependent operation can be set since enable control is possible.

Features

• AEC-Q100 qualified(Note1)
• All EDLC cell balancer functions are integrated of a single chip
• Self- controlled EDLC balance function
• Adopts shunt resistance method for simple balancing
• 4 to 6 cell series connection ready
• Multiple chip series connection is possible
• Built-in over-voltage detection flag output
• Detection voltage can be set