DataSheetAll » Manufacturer » Analog Devices, Inc. » ADBMS1818 Datasheet
ADBMS1818 Datasheet

ADBMS1818 Datasheet

18-Cell Battery Monitor with Daisy Chain Interface
Part No.: ADBMS1818
Page: 92 Pages
Size: 5800 KB
Manufacturer: Analog Devices, Inc.
Logo:
Views: 0
Update Time: 2025-04-18 14:56:17
DataSheet: Download

ADBMS1818 Datasheet Applicable Part

Part No. Packaging SPQ Marking MSL Pins Temp Range Package Description Buy
ADBMS1818ASWAZ Tray 160 ADBMS1818ASWAZ 3 64 -40°C ~ 85°C 64-Lead LQFP (10mm x 10mm w/ EP)  
ADBMS1818ASWAZ-R7 Reel 300 ADBMS1818ASWAZ 3 64 -40°C ~ 85°C 64-Lead LQFP (10mm x 10mm w/ EP)  
ADBMS1818ASWAZ-RL Reel 1500 ADBMS1818ASWAZ 3 64 -40°C ~ 85°C 64-Lead LQFP (10mm x 10mm w/ EP)  
ADBMS1818ASWZ Tray 160 ADBMS1818ASWZ 3 64 -40°C ~ 85°C 64-Lead LQFP (10mm x 10mm w/ EP)  
ADBMS1818ASWZ-R7 Reel 300 ADBMS1818ASWZ 3 64 -40°C ~ 85°C 64-Lead LQFP (10mm x 10mm w/ EP)  
ADBMS1818ASWZ-RL Reel 1500 ADBMS1818ASWZ 3 64 -40°C ~ 85°C 64-Lead LQFP (10mm x 10mm w/ EP)  
ADBMS1818CSWAZ Tray 160   3 64 -40°C ~ 125°C 64-Lead LQFP (10mm x 10mm w/ EP)  
ADBMS1818CSWAZ-R7 Reel 300   3 64 -40°C ~ 125°C 64-Lead LQFP (10mm x 10mm w/ EP)  
ADBMS1818CSWAZ-RL Reel 1500   3 64 -40°C ~ 125°C 64-Lead LQFP (10mm x 10mm w/ EP)  
AD80918ASWAZ-RL Reel 1500   3 64 -40°C ~ 85°C 64-Lead LQFP (10mm x 10mm w/ EP)  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

ADBMS1818 Datasheet(PDF)

ADBMS1818 Datasheet(Picture)

ADBMS1818 Features

  • Measures up to 18 battery cells in series
  • 3 mV maximum total measurement error
  • Stackable architecture for high voltage systems
  • 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 Δ-Σ ADC with programmable third-order noise filter
  • Passive cell balancing up to 200 mA (maximum) with programmable pulse‑width modulation
  • 9 general purpose digital I/O or analog inputs
    • Temperature or other sensor inputs
    • Configurable as an I2C or SPI master
  • 6 μA sleep mode supply current
  • 64-lead LQFP_EP package

ADBMS1818 Applications

  • Backup battery systems
  • Grid energy storage
  • Residential energy storage
  • UPS
  • High power portable equipment

ADBMS1818 Description

The ADBMS1818 is a multicell battery stack monitor that measures up to 18 series connected battery cells with a total measurement error of less than 3.0 mV. The cell measurement range of 0 V to 5 V makes the ADBMS1818 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 ADBMS1818 devices can be connected in series, permitting simultaneous cell monitoring of long, high voltage battery strings. Each ADBMS1818 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 ADBMS1818 can be powered directly from the battery stack or from an isolated supply. The ADBMS1818 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.

All registered trademarks and trademarks are the property of their respective owners.

ADBMS1818 Related Parts

About DataSheetAll|Contact Us|Privacy Policy|Manufacturer List|Sitemap|XML|TXT
CopyRight © 2025 DataSheetAll(datasheetall.com)