Self-controlled cell balancer integrates shunt-type power storage
Rohm's BD14000EFV LSI self-controlled cell balancer IC is now available from
Mouser. It has a built-in shunt-type power storage element balancer
function that can respond to 4 to 6 cells.
All the functions necessary in a cell balancer are built-in making power
storage element cell balancing possible only in this LSI. This chip can be
used for electric double layer capacitors (EDLC) with cell detection voltage
range of 2.4V to 3.1V and power storage capacitors which is important for
cell balancers with similar electrical characteristics.
The device 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
Applications include renewable energy power storage for automotive,
production machinery, and building machinery
UPS and other devices that stabilizes power supplies. An evaluation board
is also available.