ADBMS6830BCSWZ-RL

Overview

The ADBMS6830BCSWZ-RL is a 16-channel multicell battery monitor from Analog Devices, designed for high-voltage battery stacks. It measures up to 16 series-connected cells with a total measurement error (TME) of less than 2 mV across the full temperature range. The device features a -2 V to +5.5 V input range, supporting various chemistries and bus voltage monitoring without dedicated channels. It includes two independent ADCs operating at 4.096 MHz for simultaneous redundant measurements, configurable low-pass filtering, and passive cell balancing up to 300 mA per channel. Built-in isoSPI enables robust long-distance communication, while AEC-Q100 qualification ensures automotive reliability.

Feature Summary

• Supports measurement of up to 16 series-connected battery cells with high precision
• Features dual independent ADCs for simultaneous redundant cell voltage monitoring
• Includes integrated passive cell balancing capability with programmable pulse width modulation
• Equipped with isolated serial interface (isoSPI) for high-speed, RF-immune communication

Applications

• Electric and hybrid vehicles
• Backup battery systems
• Grid energy storage applications

Procurement Notes

Verify the specific suffix 'BCSWZ' against official Analog Devices documentation to confirm package type, temperature grade, and reel configuration. Ensure compatibility with system requirements regarding the LQFP-80 EP package and surface-mount installation. Cross-reference the datasheet for any recent product change notices or lifecycle status updates before finalizing procurement plans.

Selection Notes

Select this component for applications requiring precise monitoring of large battery arrays with minimal cumulative error. The built-in isoSPI interface simplifies wiring in long daisy-chain configurations compared to standard SPI/I2C. Consider the thermal performance within the -40°C to +125°C range and verify that the 300 mA balancing current meets the specific cell chemistry requirements of the target design.

Part Context

This part belongs to the ADBMS6830 family of battery monitors, which are optimized for high-voltage electric vehicle and industrial energy storage systems. The family supports scalable architectures through stackable designs, allowing multiple units to monitor extensive battery packs. The ADBMS6830B variant specifically targets automotive applications with AEC-Q100 qualification, ensuring durability under harsh environmental conditions.

Replacement Considerations

Check for direct substitutes within the ADBMS6830 family, such as the ADBMS6830MWCSWZ-RL, noting differences in package or qualification. Verify pinout compatibility and electrical parameter equivalence before substitution. Consult official replacement guides for any discontinued variants or updated models with enhanced features.

FAQ

Does the ADBMS6830BCSWZ-RL support bus voltage measurement?

Yes, the device allows measurement of bus voltage without requiring a dedicated measurement channel, thanks to its configurable bypass feature.

What is the maximum balancing current per channel?

The device provides passive cell balancing with a maximum current of 300 mA per channel, utilizing programmable pulse width modulation.