LTC3300-1

RECOMMENDED FOR NEW DESIGNS

High Efficiency Bidirectional Multicell Battery Balancer

Data Sheet (Rev. 0) Product Selection Table

Part Models: 8
1ku List Price: Starting From $7.07

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Part Details

Bidirectional Synchronous Flyback Balancing of Up to 6 Li-Ion or LiFePO₄ Cells in Series
Up to 10A Balancing Current (Set by Externals)
Integrates Seamlessly with the LTC680x Family of Multicell Battery Stack Monitors
Bidirectional Architecture Minimizes Balancing Time and Power Dissipation
Up to 92% Charge Transfer Efficiency

Stackable Architecture Enables >1000V Systems
Uses Simple 2-Winding Transformers
1MHz Daisy-Chainable Serial Interface with 4-Bit CRC Packet Error Checking
High Noise Margin Serial Communication
Numerous Fault Protection Features
48-Lead Exposed Pad QFN and LQFP Packages
AEC-Q100 Qualified for Automotive Applications

The LTC3300-1 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.

Each LTC3300-1 can balance up to 6 series-connected battery cells with an input common mode voltage up to 36V. Charge from any selected cell can be transferred at high efficiency to or from 12 or more adjacent cells. A unique level-shifting SPI-compatible serial interface enables multiple LTC3300-1 devices to be connected in series, without opto-couplers or isolators, allowing for balancing of every cell in a long string of series-connected batteries.

When multiple LTC3300-1 devices are connected in series they can operate simultaneously, permitting all cells in the stack to be balanced concurrently and independently. Fault protection features include readback capability, cyclic redundancy check (CRC) error detection, maximum on-time volt-second clamps, and overvoltage shutoffs.


	Features
LTC3300-1	SPI-compatible serial interface in which each chip in the stack communicates bidirectionally to the chips of the same type above and below it via currents. There is no limit to the stack height. Large common mode voltage differences are handled by each LTC3300-1. The microprocessor in the BMS system communicates ONLY with the bottom chip in the stack and subsequently all of the chips use the same fixed internal address.
LTC3300-2	SPI-compatible serial interface in which each chip has a unique 5-bit pin-strapped address. The microprocessor in the BMS system communicates directly with every chip in the stack with common mode voltage differences handled by digital isolators or opto-couplers. Because of the 5-bit address, the stack height is limited to 32 LTC3300-2 ICs or 192 cells (~800V). There are 5 pins which have a different assignment, all of them serial interface related.

Applications

Electric Vehicles/Plug-in HEVs
High Power UPS/Grid Energy Storage Systems
General Purpose Multicell Battery Stacks

Part Models: 8
1ku List Price: Starting From $7.07

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC3300HLXE-1#PBF	48-Lead LQFP (7mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3300HLXE-1#WPBF	48-Lead LQFP (7mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3300HUK-1#PBF	48-Lead QFN (7mm x 7mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3300HUK-1#TRPBF	48-Lead QFN (7mm x 7mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3300ILXE-1#PBF	48-Lead LQFP (7mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3300ILXE-1#WPBF	48-Lead LQFP (7mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3300IUK-1#PBF	48-Lead QFN (7mm x 7mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3300IUK-1#TRPBF	48-Lead QFN (7mm x 7mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 6, 2021 - 21_0046 Transfer of LQFP and LQFP_EP from AEM to AET
		PCN21_0046_Form Material_Report Qualification Results Summary Other
LTC3300HLXE-1#PBF	PRODUCTION
LTC3300ILXE-1#PBF	PRODUCTION
Apr 5, 2022 - 21_0046 Transfer of LQFP and LQFP_EP from AEM to AET
		PCN21_0046_Form Material_Report Qualification Results Summary Other Delta Qualification Matrix
LTC3300HLXE-1#WPBF	PRODUCTION
LTC3300ILXE-1#WPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Battery Cell Balancers 1
LT8584	RECOMMENDED FOR NEW DESIGNS	2.5A Monolithic Active Cell Balancer with Telemetry Interface
Multicell Battery Stack Monitor 1
LTC6804-1	NOT RECOMMENDED FOR NEW DESIGNS	12 Channel Multicell Battery Monitor with Daisy Chain Interface, Generation 3

Parts	Product Life Cycle	Description
LTC3300-2	RECOMMENDED FOR NEW DESIGNS	Addressable High Efficiency Bidirectional Multicell Battery Balancer

Tools & Simulations

LTspice 1

LTC3300-1 - Battery Management

Models for the following parts are available in LTspice:

LTC3300-1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

12 Cell 4A Stackable Slave Bidirectional Active Cell Balancer Featuring LTC6804-2 and LTC3300-1(x2)

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Product Details

Demonstration Circuit DC2100B-D is a stackable, bidirectional cell balancer slave board using the LTC6804-2 and the LTC3300-1 ICs to achieve active balancing of up to 12 Li-Ion cells. It requires the DC2100B-C for proper operation. The DC2100B-D uses a single LTC6804-2 Multi-Cell Addressable Battery Stack Monitor IC to measure cell voltages and two LTC3300-1 Synchronous Flyback ICs to provide active cell balancing. The DC2100B-C controller board contains a PIC18F47J53 microcontroller, the LTM2884 isolated USB transceiver, the LTC6804-2, two LTC3300-1 ICs, and the LTC6820 isoSPI Interface IC to facilitate isolated communication. Up to seven DC2100B-D boards can be connected to a DC2100B-C to build a stacked system of eight total boards.

Resources

DC2100B - Design Files
7/16/2015

DC2100B - Demo Manual
5/12/2017

DC2100B - Schematic
7/16/2015

OBSOLETE: LTC3300ILXE-1 | LTC6803IG-2 High Frequency Bidirectional Multicell Battery Balancer- Companion Board DC590B

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Product Details

This evaluation board is obsolete and no longer recommended. The replacement board is the DC2100B-C.

DC2064A Demo Board for:
LTC3300-1 High Efficiency Bidirectional Multicell Battery Balancer
LTC6803-2 and -4 Multicell Battery Stack Monitor

Resources

DC2064A - Demo Manual
3/12/2015

DC2064A - Schematic
6/19/2013

DC2064A - Design Files
6/18/2013

12 Cell 4A Controller Board Bi-Directional Active Cell Balancer with LTC3300-1, LTC6804-2 and LTC6820

Buy Now View Details

Product Details

Resources

DC2100B - Design Files
7/16/2015

DC2100B - Demo Manual
5/12/2017

DC2100B - Schematic
7/16/2015

DC2100B - Software and Users Guide
4/29/2016

OBSOLETE: 12 Cell 4A Controller Board Featuring LTC6804-2 and LTC3300-1 (x2) for Bidirectional Active Cell Balancing

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Product Details

This evaluation board is obsolete and no longer recommended. The replacement board is the DC2100B-C.

Demonstration Circuit DC2100A-C is a stand-alone Active Cell Balancer for balancing up to 12 Li-Ion cells; it also is the master controller board when used with DC2100B-D slave boards for a stackable battery balancing solution. It consists of the LTC6804-2 Multicell Addressable Battery Stack Monitor and two LTC3300-1 Active Cell Balancers. It contains a PIC18F47J53 microcontroller, the LTM2884 Isolated USB Transceiver, and an LTC6820 isoSPI Interface IC to facilitate isolated communication with the LTC6804-2 and the LTC3300-1 ICs. Up to 7 DC2100B-D boards can be connected to the DC2100A-C to build a stacked system of 8 total boards.

Resources

DC2100A - Schematic
6/10/2014

DC2100A - Demo Manual
3/12/2015

DC2100A - Software and Users Guide
10/14/2015

DC2100A-C - Design Files
8/13/2014

OBSOLETE: 12 Cell 4A Stackable Slave Bidirectional Active Cell Balancer Featuring LTC6804-2 and LTC3300-1(x2)

Buy Now View Details

Product Details

This evaluation board is obsolete and no longer recommended. The replacement board is the DC2100B-D.

Demonstration Circuit DC2100A-D is a stackable, bidirectional cell balancer slave board using the LTC6804-2 and the LTC3300-1 ICs to achieve active balancing of up to 12 Li-Ion cells. It requires the DC2100A-C for proper operation. The DC2100B-D uses a single LTC6804-2 Multi-Cell Addressable Battery Stack Monitor IC to measure cell voltages and two LTC3300-1 Synchronous Flyback ICs to provide active cell balancing. The DC2100A-C controller board contains a PIC18F47J53 microcontroller, the LTM2884 isolated USB transceiver, the LTC6804-2, two LTC3300-1 ICs, and the LTC6820 isoSPI Interface IC to facilitate isolated communication. Up to seven DC2100A-D boards can be connected to a DC2100A-C to build a stacked system of eight total boards.

Resources

DC2100A - Schematic
6/10/2014

DC2100A - Demo Manual
3/12/2015

DC2100A-D - Design Files
8/13/2014

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LTC3300-1

Part Details

Documentation

Data Sheet 1

Reliability Data 1

User Guide 3

Technical Articles 4

Video 2

Software Resources

Can't find the software or driver you need?

Hardware Ecosystem

Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

Evaluation Kits

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