MC33772CTP1AER2

Overview

The MC33772CTP1AER2 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, supporting transient voltages up to 42V in SPI mode. The device features six dedicated battery voltage measurement channels with a maximum total stack voltage measurement error of 0.8mV. It integrates seven ADC/GPIO/temperature sensor inputs and supports synchronous advanced current measurement with integrated programmable gain amplifiers. Communication interfaces include isolated 2-wire differential TPL at 2.0Mbps or standard SPI at 4Mbps. The component is housed in a 48-pin HLQFP package and complies with AEC-Q100 standards.

Feature Summary

• Supports synchronous high-precision current measurement with integrated programmable gain amplifiers and built-in coulomb counting capabilities.
• Features onboard passive cell balancing with 300mA low Rdson MOSFETs, including diagnostic functions and sleep mode operation.
• Provides robust fault protection mechanisms including over-voltage, under-voltage, over-temperature, and over-current verification.
• Ensures functional safety compliance with ISO 26262 standards, supporting up to ASIL D safety integrity levels.

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 the reel packaging configuration distinct from tray variants. Confirm that the ordering part number matches the required communication interface and package type. Ensure compatibility with the target microcontroller unit for SPI or TPL protocol implementation. Check for RoHS3 compliance and REACH SVHC status prior to integration into production designs.

Selection Notes

Select this variant when a reel-packaged 48-pin LQFP battery controller is required for high-voltage applications. Consider the integrated passive balancing and current sensing features if external components are to be minimized. Evaluate the thermal performance requirements given the operating temperature range of -40°C to +125°C. Ensure the system architecture supports the specified isolation and communication protocols for reliable data transfer.

Part Context

This component belongs to the MC33772C series of battery cell controllers, which are optimized for managing lithium-ion battery stacks in demanding environments. The series provides comprehensive monitoring and control functions essential for modern electric mobility and stationary storage solutions. It serves as a critical interface between the battery cells and the central processing unit, ensuring safe and efficient energy management.

Replacement Considerations

Direct substitutes within the same family include MC33772CTP1AE, which shares identical electrical characteristics but utilizes tray packaging instead of reel packaging. Other compatible variants such as MC33772CTP2AE offer similar functionality with potential differences in internal calibration or software configuration. Verify pinout and register compatibility before swapping between these specific part numbers.

FAQ

What is the maximum transient voltage supported by the MC33772CTP1AER2?

The device supports transient voltages up to 42V when operating in SPI mode.

Does the MC33772CTP1AER2 support active cell balancing?

No, the device features onboard passive cell balancing using 300mA low Rdson MOSFETs rather than active balancing circuits.

Is the MC33772CTP1AER2 qualified for automotive use?

Yes, the component meets AEC-Q100 standards and supports ISO 26262 functional safety requirements up to ASIL D.