MC33772BTP1AER2

Overview

The MC33772BTP1AER2 is a six-channel lithium-ion battery cell controller IC designed for automotive and industrial applications. It features advanced voltage and temperature measurement with a maximum total stack voltage measurement error of 0.8mV. The device supports isolated daisy chain communication at 2.0Mbps or SPI at 4Mbps. It integrates synchronous current measurement with ±0.5% accuracy, a built-in coulomb counter, and onboard passive balancing MOSFETs rated at 300mA. Operating within a supply voltage range of 6V to 30V, it complies with AEC-Q100 standards and supports ISO 26262 up to ASIL D.

Feature Summary

• Six-channel differential voltage measurement with high precision
• Integrated synchronous current sensing and coulomb counting
• Onboard passive balancing with programmable timers and diagnostics
• Dual communication options: isolated daisy chain or standard SPI

Applications

• Hybrid electric vehicle (HEV) battery management systems
• Electric vehicle (EV) high-voltage battery packs
• Energy storage systems (ESS)
• Uninterruptible power supply (UPS) systems

Procurement Notes

Verify the specific suffix 'R2' against official NXP documentation to confirm tape-and-reel packaging requirements. Confirm that the component status aligns with long-term availability plans, as some variants may be subject to obsolescence notices. Ensure compatibility with the intended microcontroller interface before finalizing procurement orders.

Selection Notes

Select this model for applications requiring robust functional safety up to ASIL D and precise cell monitoring. The integrated passive balancing simplifies hardware design by eliminating external components. Consider the isolation capabilities when designing distributed BMS architectures to ensure signal integrity across multiple cells.

Part Context

This component belongs to the MC33772 family of battery cell controllers from NXP Semiconductors. It is engineered specifically for managing lithium-ion batteries in demanding environments. The series provides scalable solutions for various battery configurations, ensuring reliable operation in both automotive and industrial sectors.

Replacement Considerations

MC33772CTC0AER2

FAQ

What is the maximum total voltage measurement error?

The maximum total stack voltage measurement error is specified as 0.8mV.

Does the device support thermal protection?

Yes, it includes over-temperature (OT) and under-temperature (UT) fault verification and monitoring even in sleep mode.