MC33771CTP2AE

Overview

The MC33771CTP2AE is a 14-channel Li-Ion battery cell controller IC designed for automotive and industrial applications. It operates within a supply voltage range of 9.6 V to 61.6 V, supporting 75 V transients. The device features synchronized differential cell voltage and current ADC conversions, coulomb counting, and temperature measurements. It includes embedded balancing transistors and diagnostics. Communication with an MCU is supported via standard SPI or transformer-isolated daisy chain using the MC33664. The component is housed in an LQFP-EP-64 package and complies with AEC-Q100 standards.

Feature Summary

• Supports synchronized advanced current measurement with integrated PGA and coulomb counter
• Features onboard passive balancing with programmable timers and sleep mode capability
• Enables isolated daisy chain communication via MC33664 or standard SPI interfaces
• Provides comprehensive fault diagnostics including OV/UV, OT/UT, and OC verification

Applications

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

Procurement Notes

Verify the specific suffix 'TP2AE' against official NXP documentation to confirm package type and tape-and-reel configuration. Ensure compatibility with required isolation methods if utilizing daisy chain topology. Confirm functional safety requirements align with ISO 26262 capabilities. Validate thermal performance within the specified operating temperature range during system integration.

Selection Notes

Select this model for applications requiring up to 14 series-connected lithium-ion cells. Choose based on the need for transformer-isolated daisy chain communication over standard SPI. Consider the integrated balancing currents and diagnostic features for simplified board design. Verify that the LQFP-EP-64 package fits the target PCB layout constraints.

Part Context

This component belongs to the MC33771C family of battery cell controllers from NXP Semiconductors. It is part of a broader ecosystem including companion chips like the MC33664 for isolation. The family targets high-safety automotive environments, offering robust monitoring and control capabilities for complex battery packs in demanding electrical conditions.

Replacement Considerations

Check for direct substitutes within the MC33771B or MC33772 families, noting differences in channel counts and isolation support. Verify pinout compatibility and software register mapping before substitution. Consult NXP for any updated revisions or end-of-life notices affecting long-term availability.