KA84930UA-BJ

Battery Management Overview

The KA84930UA-BJ is an automotive-grade battery pack monitoring IC designed for multi-chemistry applications. It supports up to 20 series-connected battery cells and operates within a supply voltage range of 11 V to 100 V. The device features an SPI interface for communication and is qualified under the AEC-Q100 standard. It functions reliably across an extended operating temperature range from -40°C to +125°C, ensuring robust performance in demanding vehicular environments.

Battery Management Feature Summary

• Supports monitoring of up to 20 series-connected battery cells
• Qualified for automotive grade applications with AEC-Q100 certification
• Operates within a wide supply voltage range of 11 V to 100 V
• Features SPI interface for system communication

Battery Management Applications

• Automotive battery management systems
• Electric vehicle traction battery packs
• Hybrid electric vehicle energy storage monitoring

Battery Management Procurement Notes

Verify the specific suffix BJ against official Nuvoton documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints and SPI bus configurations. Confirm that the selected variant meets the required AEC-Q100 reliability standards for your specific automotive application tier before finalizing procurement orders.

Battery Management Selection Notes

Select this component when designing systems requiring monitoring of up to 20 series cells within a 100 V maximum limit. It is suitable for applications needing AEC-Q100 qualification and operation at temperatures up to 125°C. Consider the SPI interface requirements and ensure the host controller supports the necessary communication protocol for cell voltage and temperature data acquisition.

Battery Management Part Context

This part belongs to Nuvoton's KA849xx series of battery pack monitoring ICs, which includes variants like the KA84922UA and KA84950UA. These components are engineered for high-performance automotive battery management, offering scalable cell counting capabilities and robust industrial-grade thermal stability for critical powertrain applications.

Battery Management Replacement Considerations

The KA84922UA offers similar functionality but supports fewer cells. The KA84950UA supports up to 25 cells with a higher maximum absolute voltage of 132V. Verify pinout and software compatibility when substituting these related models.