MC33772CTC0AE

Overview

The MC33772CTC0AE is a six-channel lithium-ion battery cell controller IC from NXP Semiconductors, designed for automotive and industrial applications. It operates within a supply voltage range of 7 V to 30 V and supports transient voltages up to 42 V in daisy-chain mode. The device features six dedicated channels for differential cell voltage measurement with a maximum total stack voltage error of 0.8 mV. It integrates seven ADC/GPIO/temperature sensor inputs and includes a synchronized high-precision current measurement system with an integrated programmable gain amplifier (PGA) and coulomb counter, achieving accuracy of ±0.5%. The component supports passive cell balancing via onboard MOSFETs with a 300 mA capability and offers isolated communication interfaces, including 2.0 Mbps two-wire differential daisy-chain or 4 Mbps SPI. It is housed in a 48-pin LQFP package with exposed pad.

Feature Summary

• Integrates six differential cell voltage measurement channels with advanced synchronization capabilities for precise state-of-charge estimation.
• Includes onboard passive cell balancing circuitry with diagnostic functions and programmable timers for each balancing MOSFET.
• Supports robust isolated communication through either a two-wire differential daisy-chain interface or standard SPI protocol.
• Provides comprehensive fault detection and monitoring, including over-voltage, under-voltage, over-temperature, and open-circuit diagnostics.

Applications

• Hybrid electric vehicle (HEV) and electric vehicle (EV) battery management systems
• High-voltage energy storage systems (ESS)
• Uninterruptible power supply (UPS) systems
• Electric bicycle and scooter battery packs

Procurement Notes

Verify the specific suffix '0A' against the manufacturer's official documentation to confirm the exact configuration, as ordering suffixes may denote variations in packaging, temperature grade, or functional options. Ensure compatibility with the intended microcontroller interface, whether SPI or isolated daisy-chain, during the design-in phase. Confirm that the 48-LQFP package dimensions align with the target PCB layout constraints and thermal requirements.

Selection Notes

Select this component when a six-channel solution is required for lithium-ion battery architectures in automotive or industrial environments. Consider the MC33772CTC0AE for designs needing integrated current sensing and coulomb counting without external complex circuitry. Evaluate the need for ASIL D support if functional safety compliance is critical. Compare channel count and communication interface options against other members of the MC3377x family to ensure optimal resource utilization for the specific application topology.

Part Context

The MC33772CTC0AE belongs to the MC33772C series of battery cell controllers, which are part of NXP's broader portfolio of power management and sensing solutions for electrified vehicles. This series is engineered to provide reliable analog front-end performance combined with digital control capabilities. The device is AEC-Q100 qualified, ensuring suitability for harsh automotive operating conditions. It complements other components in the ecosystem, such as the MC33664 transceiver, to form complete battery management architectures.

Replacement Considerations

Direct substitutes within the same family include variants with different suffixes such as MC33772CTC1AE or MC33772CTP1AE, which may offer different feature sets or packaging options. Verify pin-to-pin compatibility and functional equivalence before substitution. Cross-reference with the MC33772B series for legacy replacements, noting potential differences in specifications or qualification status. Consult official replacement guides for any discontinued variants.