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BMA7X18 Evaluation Board with Isolated Daisy Chain
- This page contains information on a preproduction product. Specifications and information herein are subject to change without notice. For additional information please contact your sales representative.
The EVBMA7X18 is an electrochemical impedance spectroscopy (EIS) -capable distributed cell monitoring unit (CMU) with electrical transport protocol link (eTPL) communication. It is ideal for rapid prototyping of high-voltage battery management system (HVBMS) hardware and software. This board contains one BMA7418 analog front end (AFE) which enables its integrated discrete fourier transform (DFT) feature of EIS measurements. The pin and feature compatibility between the BMA7418 and BMA7118 allows the EVBMA7X18 to also be used in the evaluation of the BMA7118.
製品詳細
対応製品
バッテリー・マネジメント
バッテリー・セルコントローラ
- BMA7118: 18チャネルのリチウムイオン・バッテリー・セルコントローラIC、ASIL D対応
Features
Voltage Measurement
- 1x BMA7118 battery cell controllers (BCCs) for up to 18 cells, extendable by adding more CMUs to the daisy chain
- Life-time guaranteed high accuracy cell voltage measurement channels, with averaging and advanced filtering
Integrated Discrete Fourier Transform (DFT) for EIS Support
- Extraction of one selectable frequency
- Configurable observation window
- Support of synchronized measurement start across multiple daisy chains
Temperature Measurement
- 9x analog inputs for negative temperature coefficient (NTC) temperature sensors
Cell Balancing
- Integrated passive cell balancing up to 300 mA peak
Communication
- Isolated eTPL communication between CMU and BMU
Cost Reduction
- Optimized bill of materials (BOM) using capacitive isolation on and off board
