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LTC6804-2 Datasheet

LTC6804-2 Datasheet

12 Channel Multicell Battery Monitor with Addressable Interface, Generation 3
Part No.: LTC6804-2
Page: 78 Pages
Size: 784 KB
Manufacturer: Linear Technology
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Views: 1
Update Time: 2025-01-24 15:55:45
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LTC6804-2 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LTC6804IG-2#PBF Tube 37 LTC6804G-2 3 48 -40°C ~ 85°C 48-Lead Plastic SSOP  
LTC6804IG-2#TRPBF Reel 2000 LTC6804G-2 3 48 -40°C ~ 85°C 48-Lead Plastic SSOP  
LTC6804HG-2#PBF Tube 37 LTC6804G-2 3 48 -40°C ~ 125°C 48-Lead Plastic SSOP  
LTC6804HG-2#TRPBF Reel 2000 LTC6804G-2 3 48 -40°C ~ 125°C 48-Lead Plastic SSOP  
LTC6804IG-2#3ZZPBF Tube 37 LTC6804G-2 3 48 -40°C ~ 85°C 48-Lead Plastic SSOP  
LTC6804IG-2#3ZZTRPBF Reel 2000 LTC6804G-2 3 48 -40°C ~ 85°C 48-Lead Plastic SSOP  
LTC6804HG-2#3ZZPBF Tube 37 LTC6804G-2 3 48 -40°C ~ 125°C 48-Lead Plastic SSOP  
LTC6804HG-2#3ZZTRPBF Reel 2000 LTC6804G-2 3 48 -40°C ~ 125°C 48-Lead Plastic SSOP  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LTC6804-2 Datasheet(PDF)

LTC6804-2 Datasheet(Picture)

LTC6804-2 Features

  • 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 Applications

  • Electric and Hybrid Electric Vehicles
  • Backup Battery Systems
  • Grid Energy Storage
  • High Power Portable Equipment

LTC6804-2 Description

The LTC6804 is a 3rd generation multicell battery stack monitor that measures up to 12 series connected battery cells with a total measurement error of less than 1.2mV. The cell measurement range of 0V to 5V makes the LTC6804 suitable for most battery chemistries. All 12 cell voltages can be captured in 290μs, and lower data acquisition rates can be selected for high noise reduction.

Multiple LTC6804 devices can be connected in series, permitting simultaneous cell monitoring of long, high voltage battery strings. Each LTC6804 has an isoSPI interface for high speed, RF-immune, local area communications. Using the LTC6804-2, multiple devices are connected in parallel to the host processor, with each device individually addressed.

Additional features include passive balancing for each cell, an onboard 5V regulator, and 5 general purpose I/O lines. In sleep mode, current consumption is reduced to 4μA. The LTC6804 can be powered directly from the battery, or from an isolated supply.

LTC6804-2 Related Parts

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