LTC6811-1

PRODUCTION

12 Channel Multicell Battery Monitor with Daisy Chain Interface, Generation 4

Data Sheet (Rev. C)
Part Models
8
1ku List Price
Starting From $9.72
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Part Details

  • Pin-Compatible Upgrade from the LTC6804
  • Measures Up to 12 Battery Cells in Series
  • 1.2mV Maximum Total Measurement Error
  • Stackable Architecture for High Voltage Systems
  • Built-in isoSPI™ Interface
  • 1Mb Isolated Serial Communications
  • Uses a Single Twisted Pair, up to 100 Meters
  • Low EMI Susceptibility and Emissions
  • 290µs to Measure All Cells in a System
  • Synchronized Voltage and Current Measurement
  • 16-Bit ADC with Programmable Noise Filter
  • Engineered for ISO 26262-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
  • AEC-Q100 Qualified for Automotive Applications
LTC6811-1
12 Channel Multicell Battery Monitor with Daisy Chain Interface, Generation 4
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 2

Technical Articles 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Digital Temperature Sensors 1
LTC2983
RECOMMENDED FOR NEW DESIGNS Multi-Sensor High Accuracy Digital Temperature Measurement System
Interface Transceivers & Isolators 1
LTC6820
PRODUCTION isoSPI Isolated Communications Interface
Switching Regulators & Controllers 1
LTM9100
PRODUCTION Anyside™ High Voltage Isolated Switch Controller with I2C Command and Telemetry
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Tools & Simulations

Linduino 1

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
schematic 4
schematic 5
DC2259A

LTC6811-1 Demo Board | 12-Channel Battery Stack Monitor with Daisy-chain Interface

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Product Details

Demonstration circuit 2259A is a Daisy Chain isoSPI Battery-Stack Monitor featuring the LTC6811-1. Multiple boards can be linked through a 2-wire isolated serial interface to monitor any number of cells on a stack.

eval board
schematic 6
schematic 7
schematic 8
schematic 9
schematic 10
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).


 
DC2259A
LTC6811-1 Demo Board | 12-Channel Battery Stack Monitor with Daisy-chain Interface
DC2259A Demo Board DC2259A Demo Board DC2259A Demo Board DC2259A Demo Board DC2259A - Schematic
DC1941D
LTC6820 isoSPI Demoboard (DC590B required)
DC1941D Demo Board DC1941D Demo Board DC1941D Demo Board DC1941D Demo Board DC1941D - Schematic

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