LTC3300-2
RECOMMENDED FOR NEW DESIGNSAddressable High Efficiency Bidirectional Multicell Battery Balancer
- Part Models
- 8
- 1ku List Price
- Starting From $8.95
Overview
- 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 >800V Systems
- Uses Simple 2-Winding Transformers
- 1MHz Serial Interface with 4-Bit CRC Packet Error Checking
- Individually Addressable with 5-Bit Address
- Numerous Fault Protection Features
- 48-Lead Exposed Pad QFN and LQFP Packages
- AEC-Q100 Qualified for Automotive Application
The LTC3300-2 is a fault-protected controller IC for transformer-based bidirectional active balancing of multi-cell 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 LTC3300-2 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. Each LTC3300-2 has an individually addressable serial interface, allowing up to 32 LTC3300-2 devices to interface to one control processor.
Fault protection features include readback capability, cyclic redundancy check (CRC) error detection, maximum on-time volt-second clamps, and overvoltage shutoffs.
The related LTC3300-1 offers a serial interface that allows the serial ports of multiple LTC3300-1 devices to be daisy-chained without opto-couplers or isolators.
| 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 optocouplers. 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
Documentation
Data Sheet 1
Technical Articles 2
Video 1
Analog Dialogue 1
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-2#PBF | 48-Lead LQFP (7mm x 7mm w/ EP) | ||
| LTC3300HLXE-2#WPBF | 48-Lead LQFP (7mm x 7mm w/ EP) | ||
| LTC3300HUK-2#PBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC3300HUK-2#TRPBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC3300ILXE-2#PBF | 48-Lead LQFP (7mm x 7mm w/ EP) | ||
| LTC3300ILXE-2#WPBF | 48-Lead LQFP (7mm x 7mm w/ EP) | ||
| LTC3300IUK-2#PBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC3300IUK-2#TRPBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 6, 2021 - 21_0046 Transfer of LQFP and LQFP_EP from AEM to AET |
||
| LTC3300HLXE-2#PBF | PRODUCTION | |
| LTC3300ILXE-2#PBF | PRODUCTION | |
|
Apr 5, 2022 - 21_0046 Transfer of LQFP and LQFP_EP from AEM to AET |
||
| LTC3300HLXE-2#WPBF | PRODUCTION | |
| LTC3300ILXE-2#WPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Battery Monitors & Fuel Gauges 2 | ||
| LT8584 | RECOMMENDED FOR NEW DESIGNS | 2.5A Monolithic Active Cell Balancer with Telemetry Interface |
| LTC6804-1 | NOT RECOMMENDED FOR NEW DESIGNS | 12 Channel Multicell Battery Monitor with Daisy Chain Interface, Generation 3 |
| Parts | Product Life Cycle | Description |
|---|---|---|
| LTC3300-1 | RECOMMENDED FOR NEW DESIGNS | High Efficiency Bidirectional Multicell Battery Balancer |
Tools & Simulations
LTspice
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.
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