For Lithium-ion batteries in an electric vehicle, ensuring high safety against dangerous events such as smoke and fire are required.   Nuvoton automotive qualified battery monitoring ICs include a redundant measurement system in which the elements and functional blocks are electrically separated by utilizing the characteristics of in-house development SOI process and achieve high security and reliability with a highly redundant communication topology. This makes it easier for customers to design and develop an automotive battery system compliant with ISO26262 ASIL-D. High precision voltage measurement help to extend the cruising range of BEVs and the guaranteed voltage measurement error in wide input voltage ranges and wide temperatures enable to provide a common platform for various vehicle models and applications. 

KA85010UA

26-Cell EIS-Enabled Battery Monitoring IC for EVs and Energy Storage Systems

• Communication Interface: Daisy Chain / SPI
• Key Functions: Cell Voltage, Current & Temperature Monitoring, EIS Measurement
• EIS Technology: Inductor Excitation with Quadrature Detection-Based V/I Complex Analysis
• Voltage Measurement Accuracy: ±2.0 mV (EOL)
• Functional Safety & Quality: ISO 26262 ASIL-D Ready, AEC-Q100 Qualified
• Applications: Electric Vehicles (EVs), Large-Scale Energy Storage Systems (ESS), Battery Reuse & Diagnostics Systems

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