MC33772CTA2AE

Overview

The MC33772CTA2AE is a 6-channel lithium-ion battery cell controller IC from NXP Semiconductors, designed for automotive and industrial applications. It operates within a supply voltage range of 5.0V to 30V, with transient tolerance up to 42V in SPI mode. The device supports management of 3 to 6 battery cells and features advanced voltage measurement with a maximum total stack error of 0.8mV. It integrates synchronous current sensing with ±0.5% accuracy, a Coulomb counter, and onboard passive balancing MOSFETs rated at 300mA. Communication interfaces include isolated TPL (up to 2.0Mbps) and SPI (up to 4Mbps). The component is housed in a 48-pin HLQFP package and complies with AEC-Q100 standards.

Feature Summary

• Supports isolated transformer-based differential communication or standard SPI for robust data exchange
• Integrates high-precision voltage and temperature measurement with embedded diagnostic capabilities
• Features onboard passive balancing with programmable timers and sleep mode support
• Complies with ISO 26262 functional safety standards up to ASIL D

Applications

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

Procurement Notes

Verify the specific suffix 'A2' against official NXP documentation to confirm exact ordering and packaging details. Ensure compatibility with the host microcontroller's communication protocol requirements. Confirm that the 48-LQFP package dimensions align with the target PCB layout constraints. Validate that the operating temperature range meets the environmental specifications of the intended application environment.

Selection Notes

Select this component when designing systems requiring high channel counts and advanced safety features. It is suitable for applications needing precise state-of-charge estimation via integrated Coulomb counting. Consider its thermal performance and heat dissipation requirements due to the onboard balancing MOSFETs. Evaluate the system architecture to determine if isolated TPL or SPI communication best fits the noise immunity needs.

Part Context

This part belongs to the MC33772C series of battery cell controllers. It is an evolution of previous generations like the MC33772B, offering enhanced safety and communication options. The series is widely used in modern electric mobility and stationary storage solutions. It serves as a critical interface between the battery cells and the central control unit.

Replacement Considerations

Direct substitutes may include other variants within the MC33772 family, such as MC33772CTP2AE or MC33772CTC0AE, depending on required channel count and packaging. Verify pinout compatibility and software register mapping before substitution. Consult NXP for updated lifecycle status and long-term availability guarantees.