BQ78PL116,pdf(PowerLAN Master

The bq78PL116 master gateway battery controller is
part of a complete Li-Ion control, monitoring, and
safety solution designed for large series cell strings.
The bq78PL116 along with bq76PL102 PowerLAN™
dual-cell monitors provide complete battery-system
control, communications, and safety functions for a
structure of three up to 16 series cells. This
PowerLAN system provides simultaneous,
synchronized voltage and current measurements
using one A/D per-cell technology. This eliminates
system-induced noise from measurements and allows
the precise, continuous, real-time calculation of cell
impedance under all operating conditions, even
during widely fluctuating load conditions.
PowerPump technology transfers charge between
cells to balance their voltage and capacity. Balancing
is possible during all battery modes: charge,
discharge, and rest. Highly efficient charge-transfer
circuitry nearly eliminates energy loss while providing
true real-time balance between cells, resulting in
longer run-time and improved cycle life.