LTC3300-1
High Efficiency Bidirectional
Multicell Battery Balancer
FEATURES DESCRIPTION Bidirectional Synchronous Flyback Balancing
of Up to 6 Li-Ion or LiFePO4 Cells in Series
n Up to 10A Balancing Current (Set by Externals)
n Integrates Seamlessly with the LTC680x Family of
Multicell Battery Stack Monitors
n Bidirectional Architecture Minimizes Balancing
Time and Power Dissipatio Up to 92% Charge Transfer Efficiency
n Stackable Architecture Enables >1000V Systems
n Uses Simple 2-Winding Transformers
n 1MHz Daisy-Chainable Serial Interface with 4-Bit
CRC Packet Error Checking
n High Noise Margin Serial Communicatio Numerous Fault Protection Features
n 48-Lead Exposed Pad QFN and LQFP Packages The LTCВ®3300-1 is a fault-protected controller IC for
transformer-based bidirectional active balancing of multicell battery stacks. All associated gate drive circuitry,
precision current sensing, fault detection circuitry and a
robust serial interface with built-in watchdog timer are
integrated. n APPLICATIONS Electric Vehicles/Plug-in HEVs High Power UPS/Grid Energy Storage Systems
n General Purpose Multicell Battery Stacks L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and isoSPI
is a trademark of Linear Technology Corporation. All other trademarks are the property of their
respective owners. Each LTC3300-1 can balance up to 6 series-connected battery cells with an input common mode voltage up to 36V. …