MBMI7014TA1AE

Overview

The MBMI7014TA1AE is a 14-channel Li-Ion battery cell controller IC designed for industrial energy storage and UPS applications. It monitors up to 14 cells and 7 temperatures with configurable digital filtering averaging up to 256 samples. The device features an isolated 2.0 Mbps daisy-chain communication interface supporting inductive or capacitive coupling, enabling up to 63 nodes per chain. It provides onboard passive balancing of up to 300 mA simultaneously, including sleep mode operation. Operating voltage ranges from 9.6 V to 61.6 V with 75 V transient tolerance.

Feature Summary

• Monitors up to 14 battery cells and 7 temperature points with integrated configurable averaging for enhanced measurement accuracy
• Features robust isolated 2.0 Mbit/s two-wire twisted-pair differential daisy-chain communication with loopback support
• Provides onboard passive cell balancing up to 300 mA peak current with diagnostics and timer control
• Supports flexible power supply operation from 9.6 V to 61.6 V with high transient voltage tolerance

Applications

• Industrial energy storage systems (ESS)
• Uninterruptible power supplies (UPS)
• Battery management systems requiring isolated communication
• Multi-node battery stacks with daisy-chain topology

Procurement Notes

Verify the complete part number against official NXP documentation to ensure correct package and tape/reel configuration. Confirm that the specific suffix matches your required manufacturing format. Check for any applicable SafeAssure functional safety certifications if required by your system design. Ensure compatibility with your existing isolation architecture and communication protocol stack before procurement.

Selection Notes

Select this component when designing systems requiring monitoring of up to 14 series-connected Li-Ion cells with galvanic isolation. It is suitable for applications needing simultaneous balancing currents up to 300 mA and robust daisy-chain communication over long distances. Consider its operating voltage range and transient tolerance for high-voltage battery stacks. Evaluate the need for configurable digital filtering to meet specific noise immunity requirements in industrial environments.

Part Context

This component belongs to NXP's BMI70xx series of battery cell controllers, specifically tailored for industrial-grade energy storage and power backup applications. It complements other battery management solutions by providing high channel count and isolated communication capabilities. The device supports NXP's SafeAssure program for functional safety implementation, aligning with industry standards for critical infrastructure and industrial automation systems.

Replacement Considerations

Check NXP's official product change notifications for direct replacements. Verify pinout and register compatibility if substituting with other BMI70xx variants like the BMI7018 for higher channel counts. Ensure any alternative maintains the same isolated communication interface specifications and balancing current capabilities.

FAQ

What is the maximum balancing current supported by the MBMI7014TA1AE?

The device supports onboard passive cell balancing with a peak current of up to 300 mA simultaneously across multiple channels.

How many nodes can be connected in a single daisy-chain configuration?

The isolated communication interface supports up to 63 nodes per daisy chain, allowing for scalable multi-battery system architectures.

Does the device support balancing during sleep mode?

Yes, the MBMI7014TA1AE includes functionality for balancing operations even when the device is in sleep mode, aiding in long-term cell equalization.