MC33772BTA1AER2

Overview

The MC33772BTA1AER2 is a lithium-ion battery cell controller IC designed for automotive and industrial applications. It manages 3 to 6 battery cells with advanced voltage and temperature measurement capabilities, featuring a maximum total voltage measurement error of 0.8 mV. The device integrates synchronous current measurement, a built-in coulomb counter, and on-board passive balancing transistors capable of up to 300 mA per channel. It supports isolated Transformer Pulse Link (TPL) communication at 2.0 Mbps or standard SPI interfaces. Operating within a supply voltage range of 6 V to 30 V, it functions reliably between -40°C and +125°C in an LQFP-48 package.

Feature Summary

• Supports differential voltage and current ADC conversion with integrated coulomb counting and temperature sensing
• Features embedded passive balancing transistors with diagnostic functions and programmable timers
• Enables high-speed isolated TPL daisy-chain communication or standard SPI for data processing

Applications

• Hybrid Electric Vehicles (HEV)
• Electric Vehicles (EV)
• Energy Storage Systems (ESS)
• Uninterruptible Power Supply (UPS)

Procurement Notes

Verify the specific suffix 'A1' against official NXP documentation to confirm exact ordering and packaging details. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure compatibility with the intended microcontroller interface requirements before finalizing procurement orders.

Selection Notes

Select this component for designs requiring precise cell monitoring and functional safety support up to ASIL D levels. It is suitable for systems needing robust isolation via TPL or direct SPI connections. Consider its integration of current sensing and balancing features when designing compact BMS architectures for high-reliability automotive or industrial environments.

Part Context

This part belongs to the MC33772B family of battery cell controllers from NXP Semiconductors. It is engineered for high-voltage battery management systems in demanding automotive and industrial sectors. The series is known for supporting long-term product availability plans, ensuring stability for embedded designs targeting strict reliability standards.

Replacement Considerations

MC33772CTC0AER2 is a verified substitute within the same product family offering similar functionality.