LTC6804-2

NOT RECOMMENDED FOR NEW DESIGNS

12 Channel Multicell Battery Monitor with Addressable Interface, Generation 3

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Overview

  • Measures Up to 12 Battery Cells in Series
  • Stackable Architecture Supports 100s of Cells
  • Built-In isoSPI™ Interface:
    • 1Mbps Isolated Serial Communications
    • Uses a Single Twisted Pair, Up to 100 Meters
    • Low EMI Susceptibility and Emissions
  • 1.2mV Maximum Total Measurement Error
  • 290μs to Measure All Cells in a System
  • Synchronized Voltage and Current Measurement
  • 16-Bit Delta-Sigma ADC with Frequency Programmable 3rd Order Noise Filter
  • Engineered for ISO26262 Compliant Systems
  • Passive Cell Balancing with Programmable Timer
  • 5 General Purpose Digital I/O or Analog Inputs:
    • Temperature or other Sensor Inputs
    • Configurable as an I2C or SPI Master
  • 4μA Sleep Mode Supply Current
  • 48-Lead SSOP Package
LTC6804-2
12 Channel Multicell Battery Monitor with Addressable Interface, Generation 3
Total Measurement Error vs Temperature of 5 Typical Units Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Data Sheet

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Evaluation Kits

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DC1941D

LTC6820 isoSPI Demoboard (DC590B required)

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Product Details

Demonstration circuit 1941 is an isoSPI™ transceiver board, based on Linear Technology’s LTC6820. The LTC6820 provides a method of interconnecting standard serial peripheral interface (SPI) devices using a single twisted pair connection. This proprietary 2-wire interface is called isoSPI. The LTC6820 encodes SPI signals, up to 1Mbps, into a differential isoSPI signal which is transmitted via a simple pulse transformer through a twisted pair. At the other end of the twisted pair, the isoSPI signal can be translated back to SPI (using another LTC6820).


 


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DC1942C

LTC6804-2 Demo Board | Addressable isoSPI Battery-Stack Monitor (DC2026)

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Product Details

Demonstration circuit 1942C is an addressable isoSPI battery-stack monitor featuring the LTC6804-2. These boards can be linked through a 2-wire isolated serial interface to monitor any number of cells on a stack. Communication to a PC uses a DC590 USB interface board. A control program for up to ten stacked boards has a Graphical User Interface (GUI) to implement the device command set.



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DC2100A-C

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.

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DC2100A-D

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

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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.

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DC2100B-C

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

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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.

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DC2100B-D

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.
DC1941D
LTC6820 isoSPI Demoboard (DC590B required)
DC1941D Demo Board DC1941D Demo Board DC1941D Demo Board DC1941D Demo Board DC1941D - Schematic
DC1942C
LTC6804-2 Demo Board | Addressable isoSPI Battery-Stack Monitor (DC2026)
DC1942C Demo Board DC1942C Demo Board DC1942C Demo Board DC1942C Demo Board DC1942C - Schematic
DC2100A-C
OBSOLETE: 12 Cell 4A Controller Board Featuring LTC6804-2 and LTC3300-1 (x2) for Bidirectional Active Cell Balancing
DC2100A - Schematic
DC2100A-D
OBSOLETE: 12 Cell 4A Stackable Slave Bidirectional Active Cell Balancer Featuring LTC6804-2 and LTC3300-1(x2)
DC2100A - Schematic
DC2100B-C
12 Cell 4A Controller Board Bi-Directional Active Cell Balancer with LTC3300-1, LTC6804-2 and LTC6820
DC2100B-C Demo Board DC2100B-C Demo Board DC2100B-C Demo Board DC2100B-C Demo Board DC2100B-C Demo Board DC2100B-C Demo Board DC2100B - Demo Board Image DC2100B - Schematic
DC2100B-D
12 Cell 4A Stackable Slave Bidirectional Active Cell Balancer Featuring LTC6804-2 and LTC3300-1(x2)
DC2100B-D Demo Board DC2100B-D Demo Board DC2100B-D Demo Board DC2100B-D Demo Board DC2100B-D Demo Board DC2100B-D Demo Board DC2100B - Demo Board Image DC2100B - Schematic

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