MC33772CTA1AER2

Overview

The MC33772CTA1AER2 is a six-channel lithium-ion battery cell controller IC manufactured by NXP USA Inc. It operates within a supply voltage range of 6V to 30V, with transient tolerance up to 40V. The device features six dedicated battery voltage measurement channels and supports management of three to six cells. It integrates an advanced current measurement system with programmable gain amplifier for accuracy from milliamps to kiloamps, alongside an onboard coulomb counter. Communication is facilitated via isolated transformer physical layer (TPL) or standard SPI interfaces.

Feature Summary

• Supports isolated transformer-based daisy chain communication or standard SPI for data transfer to microcontrollers.
• Integrates onboard passive balancing MOSFETs with diagnostic capabilities and programmable timers.
• Provides synchronized voltage, current, and temperature measurements with integrated coulomb counting.
• Designed with functional safety capabilities supporting ISO 26262 standards.

Applications

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

Procurement Notes

Verify the specific suffix 'CTA1' against official NXP documentation to confirm exact configuration and revision level. Ensure compatibility with required communication protocols and thermal management solutions for the target operating environment. Confirm RoHS compliance status through manufacturer certificates prior to integration.

Selection Notes

Select this component for applications requiring precise cell monitoring and balanced charging in lithium-ion architectures. Consider the integrated current sensing and coulomb counting features for state-of-charge estimation needs. Evaluate the isolation requirements to determine if TPL or SPI interfaces best suit the system topology and noise immunity constraints.

Part Context

This part belongs to the MC33772C series of battery cell controllers designed for automotive and industrial use. It serves as a key component in battery management systems, enabling safe and efficient operation of multi-cell battery packs. The series is optimized for reliability and functional safety in demanding environments.

Replacement Considerations

MC33772CTP1AE

FAQ

What is the maximum transient voltage tolerance for the MC33772CTA1AER2?

The device supports a transient voltage tolerance of up to 40V during operation.

Does the MC33772CTA1AER2 support active balancing?

No, it features onboard passive balancing using low Rdson MOSFETs with diagnostic functions.