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LTC6813 Multi-Cell Battery Monitor
Power by Linear / Analog Devices’ LTC6813 is a multi-cell battery stack monitor. This device can measure up to 18 series connected battery cells with a total measurement error of less than 2.2 mV. The cell measurement range of 0 V to 5 V makes the LTC6813 suitable for most battery chemistries. All 18 cells can be measured in 290 μs, and lower data acquisition rates can be selected for high noise reduction.

Multiple LTC6813 parts can be connected in series, permitting simultaneous cell monitoring of long, high voltage battery strings. Each device has an isoSPI™ interface for high speed, RF immune, long-distance communications. Multiple devices are connected in a daisy chain with one host processor connection for all devices. This daisy chain can be operated bidirectionally, ensuring communication integrity, even in the event of a fault along the communication path.

The LTC6813 can be powered directly from the battery stack or an isolated supply. This monitor includes passive balancing for each cell, with individual PWM duty cycle control for each cell. Other features include an on-board 5 V regulator, nine general purpose I/O lines and a sleep mode, where current consumption is reduced to 6 μA. The LTC6813 is ideal for electric/hybrid vehicles, battery backup systems, and high-power battery systems.

Image of Power by Linear / Analog Devices’ LTC6813 Multicell Battery Monitor Image of Power by Linear / Analog Devices’ LTC6813 Multicell Battery Monitor
Features
  • Measures up to 18 battery cells in a series
  • Stackable architecture supports 100s of cells
  • Built-in isoSPI interface
    • 1 Mb isolated serial communications
    • Uses a single twisted pair, up to 100 meters
    • Low EMI susceptibility and emissions
    • Bidirectional for broken wire protection
  • 290 µs to measure all cells in a system
  • Synchronized voltage and current measurement
  • 16-bit delta-sigma ADC
  • For ISO 26262-compliant systems
  • 64-lead LQFP package
  • 6 µA sleep mode supply current
  • 9 general purpose digital I/O or analog inputs
  • Passive cell balancing up to 200 mA (max.) with programmable pulse width modulation
Applications    
  • Electric, hybrid vehicles
  • Backup battery systems
  • Grid energy storage
  • High power portable equipment

Development Board
Image Manufacturer Part Number Description   View Details
DC2350A-B datasheet link LTC6813ILWE-1 DEMO BOARD 18 CHAN DC2350A-B LTC6813ILWE-1 DEMO BOARD 18 CHAN   DC2350A-B product page link

LTC6813 Multi-Cell Battery Monitors
Image Manufacturer Part Number Description Operating Temperature   View Details
LTC6813ILWE-1#3ZZPBF datasheet link 18 CHANNEL MULTICELL BATTERY STA LTC6813ILWE-1#3ZZPBF 18 CHANNEL MULTICELL BATTERY STA -40°C ~ 85°C   LTC6813ILWE-1#3ZZPBF product page link
LTC6813HLWE-1#3ZZPBF datasheet link 18 CHANNEL MULTICELL BATTERY STA LTC6813HLWE-1#3ZZPBF 18 CHANNEL MULTICELL BATTERY STA -40°C ~ 125°C   LTC6813HLWE-1#3ZZPBF product page link
2018052209 / 15.06.2018 / Electronic-components / Digi-Key Electronics /

DigiKey Launches Season 3 of its "Farm Different" Video Series
DigiKey has launched season 3 of its "Farm Different" video series, sponsored by Analog Devices, Inc. (ADI) and Amphenol Industrial.

DigiKey Adds Over 450 New Suppliers and 1.7 Million New Parts in 2023
DigiKey, a leading global commerce distributor offering the largest selection of technical components and automation products in stock for immediate shipment, announced today that it expanded its portfolio in 2023 by adding more than 450 new suppliers across their core business, DigiKey Marketplace and Fulfilled by DigiKey program. The company added more than 1.7 million new accessible parts, including 230,000+ parts with inventory available to sell, across its core business in 2023.

DigiKey Stocks New eFuse Reference Design Product from Vishay
DigiKey, a leading global commerce distributor offering the largest selection of technical components and automation products in stock for immediate shipment, announced today that the EFUSE-48V100A reference design product from Vishay, a global technology leader in discrete semiconductors and passive components, is now available for purchase globally from DigiKey.

DigiKey’s 15th Annual DigiWish Giveaway Kicks Off on Dec. 1, 2023
DigiKey, a leading global commerce distributor offering the largest selection of technical components and automation products in stock for immediate shipment is excited to launch its 15th annual DigiWish Giveaway on Dec. 1, 2023. As the holiday season approaches, DigiKey is selecting 24 lucky winners to start the celebrations early, as part of the company’s continued mission to help engineers, designers and makers accelerate progress.

DigiKey to Showcase Automation Offerings at SPS Debut
The Smart Production Solutions (SPS) trade show is the largest automation show in Europe

DigiKey Adds 300 New Suppliers in First Half of 2023
Notable suppliers include Alps Alpine, Ambiq Micro, Amphenol LTW, HELUKABEL and Zettler Magnetics

DigiKey Receives Distribution Excellence Award 2023 High Service Level from Sensirion

DigiKey Adds 175,000+ New SKUs Year-to-Date in 2023

DigiKey Unveils Updated Logo and Brand
Brand refresh reflects company’s evolution and commerce leadership position

Digi-Key Launches Supply Chain Transformed Season 2 Video Series
Second season explores building flexible, agile and resilient supply chains

Digi-Key Launches Global Capability Centre in Bengaluru
Digi-Key Electronics, which offers the world’s largest selection of electronic components and automation products in stock for immediate shipment, has launched its first Global Capability Centre (GCC). The 30,000 sq. ft. facility in Bhartiya City, Bengaluru, India, was recently inaugurated with the presence of several key leaders from Digi-Key and its support partner, SMC Squared (SMC2).

Digi-Key Announces Global Distribution Agreement with SPARK Microsystems
Digi-Key Electronics, which offers the world’s largest selection of electronic components in stock for immediate shipment, announced that it has secured a global distribution agreement with SPARK Microsystems to offer ultra-low power wireless communications for high-performance personal area networks and IoT-connected devices.

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