MC33772BTC0AER2

Overview

The MC33772BTC0AER2 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 5.0V to 30V, with transient tolerance up to 42V in SPI mode. The device features six dedicated battery voltage measurement channels and supports stack voltage monitoring. It integrates synchronous current sensing with programmable gain amplifiers, achieving accuracy of ±0.5% across milliampere to kiloampere ranges. The component includes an onboard coulomb counter and passive balancing MOSFETs rated at 300mA. Communication interfaces include isolated TPL (2.0Mbps) and SPI (4.0Mbps). It is housed in a 48-LQFP package.

Feature Summary

• Integrates six differential voltage measurement channels and seven ADC/GPIO/temperature sensor inputs for comprehensive cell monitoring.
• Features synchronized high-precision current measurement with integrated programmable gain amplifier and built-in coulomb counting capability.
• Includes onboard low Rdson passive balancing MOSFETs with diagnostic functions and programmable timers for each channel.
• Supports isolated transformer-based differential communication or standard SPI interface for robust data exchange with microcontrollers.

Applications

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

Procurement Notes

Verify the specific suffix 'R2' indicates reel packaging when sourcing. Confirm the part status against manufacturer updates as some variants may be obsolete. Ensure compatibility with required isolation components if using TPL communication. Check RoHS compliance certificates for regulatory adherence. Validate package type matches design requirements before finalizing procurement orders.

Selection Notes

Select this model for applications requiring high-accuracy current sensing and integrated balancing without external discrete components. Consider the 48-pin LQFP package constraints for PCB layout. Evaluate thermal performance given the operating temperature range. Verify MCU interface compatibility with either SPI or TPL protocols. Assess safety integrity level requirements against the device's ISO 26262 support capabilities.

Part Context

This component belongs to the MC33772B series of battery cell controllers. It is engineered for high-voltage battery stacks in automotive environments. The series supports up to six cells per chip, allowing scalable system architectures. It is compatible with NXP MPC5xxx microcontroller families. The device emphasizes functional safety and robustness for critical powertrain applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult NXP official resources for direct replacements or pin-compatible alternatives within the same product family.