Description
Demonstration Circuit DC2064A is a bidirectional cell
balancer using two
LTC
3300-1
®
balancing of up to 12 Li-Ion batteries. The board uses the
LTC6803-2
multi-cell addressable battery stack monitor to
measure cell voltages and two LTC3300-1 ICs to provide
active cell balancing. The demonstration circuit uses a two
window GUI developed for the DC2064A. One window is
a modified version of the GUI for the LTC6803-2 and also
contains a tab to control the LTC3300-1 ICs through the
DC590B USB Serial controller and the second window
performance summary
Battery Voltage Range
Stack Voltage
Average Battery Balancing Charge Current (12 Cell)
Average Battery Balancing Discharge Current (12 Cell)
Average Battery Balancing Charge Current (6 Cell)
Average Battery Balancing Discharge Current (6 Cell)
Balancing Efficiency
*The battery voltage range may be expanded to 2.5V-4.5V by changing resistor R
The demo board's average balancing current is adjustable up to 4A by scaling and installing new values of RS1A and RS1B through RS12A and RS12B.
BoarD photo
ICs to achieve active cell
Specifications are at T
DEMO MANUAL DC2064A
LTC3300-1/LTC6803-2
Bidirectional Cell Balancer
reports the status of the LTC3300-1 devices. All the
functions of the LTC6803-2 GUI are supported except
that cell balancing is achieved through the LTC3300-1
ICs by transferring charge from one to six batteries per
LTC3300-1 to the stack or from the stack to one to six
batteries per LTC3300-1.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2064A
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
= 25°C
A
3.2V to 4.5V (2.5V to 4.5V)*
60V Max
2.6A (Typ) (4A)*
2.4A (Typ) (3.6A)*
2.2A (Typ) (3.3A)*
2.4A (Typ) (3.6A)*
92% (Typ)
to 19.1k and resistor R
TONS
TONP
to 29.4k.
dc2064afa
1