MC33772BSA2AER2

Overview

The MC33772BSA2AER2 is a six-channel lithium-ion battery cell controller IC designed for automotive and industrial applications. It operates within a supply voltage range of 6 V to 30 V, with transient tolerance up to 40 V in SPI mode. The device features six dedicated battery voltage measurement channels and seven ADC/GPIO/temperature sensor inputs. It supports isolated 2-wire differential communication at 2.0 Mbps or standard SPI at 4 Mbps. Integrated functions include synchronized current measurement with ±0.5% accuracy, coulomb counting, and onboard passive balancing via low Rdson MOSFETs. The component is housed in an LQFP-48 package.

Feature Summary

• Supports isolated 2.0 Mbps differential daisy chain communication or 4.0 Mbps SPI interfaces
• Integrates onboard passive balancing with programmable timers and diagnostic capabilities
• Provides synchronized advanced current measurement with integrated PGA and coulomb counter
• Complies with ISO 26262 functional safety standards up to ASIL D capability

Applications

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

Procurement Notes

Verify the specific suffix 'SA2AER2' against official NXP documentation to confirm the exact packaging configuration and reel specifications. Ensure compatibility with the required communication interface, as this variant specifies SPI support. Confirm that the LQFP-48 package dimensions align with the target PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring six independent cell monitoring channels with integrated balancing. It is suitable for applications demanding high precision voltage measurement and robust functional safety compliance. Consider the thermal performance of the LQFP-48 package and the specific communication protocol requirements of the host microcontroller during the selection process.

Part Context

This part belongs to the MC33772B series of battery cell controllers from NXP Semiconductors. It is engineered for high-reliability environments, offering comprehensive diagnostics and safety features. The series is widely utilized in modern electrified transportation and stationary energy storage solutions where precise cell monitoring and active management are critical for system longevity and safety.

Replacement Considerations

The MC33772CTA2AE is a related variant within the same family. Verify if the C-series meets the specific application requirements regarding communication protocols and package availability. Cross-reference pinouts and electrical characteristics to ensure seamless integration without hardware modifications.