eInfochips LimitedADI-BATTERY-STACK-MONITOR

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The Analog Devices ADI-BATTERY-STACK-MONITOR is an evaluation platform designed for a quick evaluation, proof of concept development or prototyping of a Battery management system.

The ADI-BATTERY-STACK-MONITOR is a multi-board solution and features the MAX32626 Ultra-Low-Power Arm Cortex-M4, which includes on-chip FPU-Based Microcontroller (MCU), 512KB Flash, and 160KB SRAM. It also features the Analog Devices Multicell Battery Stack Monitor device ADBMS1818.

In this multi-board evaluation platform the BMCU Board Unit serves as a master and can be connected to one or more Analog Devices EVAL-ADBMS1818 Slave Battery Stack Monitors via an isoSPI interface. Multiple devices can be connected in series in a daisy-chained manner having a single connection with the BMCU Board Unit, allowing simultaneous cell monitoring of long, high-voltage battery strings. Each EVAL-ADBMS1818 Slave Battery Stack Monitor has an isoSPI interface for high-speed, RF immune and long-distance communications. This daisy chain can be operated bidirectionally, ensuring communication integrity, even in the event of a fault along the communication path.

The system is meant to monitor real battery cells but can also be connected to the Analog Devices DC2472A 18-Cell Stimulus Board which simulates a battery and enables testing through voltage adjustment potentiometers.

Test Setup

The figure below shows the setup of the ADI-BATTERY-STACK-MONITOR using the BMCU Board Unit and EVAL-ADBMS1818 Slave Battery Stack Monitor. The DC2472A 18-Cell Stimulus Board is connected to the EVAL-ADBMS1818 Slave Battery Stack Monitor to simulate the battery voltage. Alternatively, a real 18 cell battery pack can be used.

Key Features

• BMCU Board Unit consists of Microcontroller MAX32626ITK+, ARM Cortex-M4 FPU Processor.
• USB Interface for communication as well as a power supply source.
• 2 IsoSPI ports and 2 Standard SPI are available for communication with EVAL-ADBMS1818 Slave Battery Stack Monitors.
• Onboard provision for EEPROM via I2C.
• Arduino Shield connectors for extending the functionality of the board.
• Isolated CAN Interface to be provided using an SPI to CAN controller.

Applications

The Analog Device ADI-BATTERY-STACK-MONITOR is ideal for the following applications:

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

Development Resources

ADI-BATTERY-STACK-MONITOR platform user guide, reference design, software code and documents