Battery Cell Balancers
Analog Devices battery cell balancer portfolio includes fault-protected controller ICs for transformer-based, bidirectional active balancing of multicell battery stacks, as well as monolithic flyback dc-to-dc converters designed to actively balance high voltage stacks of batteries. Our devices include unique, level-shifting SPI-compatible serial interfaces, with active balancing that allows for capacitive recovery in stacks of mismatched batteries—a feat unattainable with passive balance systems.
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Battery Cell Balancers
| SortOrder | Part# | Number of Cells | Vin Range | Bidirectional | Max Charge Current (typ) (A) | Interface | Comments | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|
| 1 | LTC3305 | Four 12V Lead Acid | Up to 64V | Uni-directional | 10 | Stand Alone | Lead Acid Battery Balancer | $6.95 (LTC3305EFE#PBF) |
| 2 | LTC3300-2 | 2 to 6 Li-Ion/LiFePO4 | Up to 36V | Bi-directional | 10 | SPI | Addressable High Efficiency Bidirectional Multicell Battery Balancer | $5.95 (LTC3300IUK-2#PBF) |
| 3 | LTC3300-1 | 2 to 6 Li-Ion/LiFePO4 | Up to 36V | Bi-directional | 10 | SPI | High Efficiency Bidirectional Multicell Battery Balancer | $5.95 (LTC3300IUK-1#PBF) |
| 4 | LT8584 | 1 Li-Ion/LiFePO4 | Up to 7.5V (switching) | Uni-directional | 2.5 | Serial | 2.5A Monolithic Active Cell Balancer with Telemetry Interface | $2.95 (LT8584EFE#PBF) |
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