MC33772BSP1AER2

Battery Management Overview

The MC33772BSP1AER2 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 an LQFP-48 package and supports SMD/SMT mounting. It provides advanced voltage and temperature measurement capabilities, including a maximum total voltage measurement error of 0.8 mV. The component integrates onboard passive balancing MOSFETs capable of 300 mA current. Communication interfaces include standard SPI at 4 Mbps or isolated daisy chain communication via the MC33664 transceiver at 2.0 Mbps.

Battery Management Feature Summary

• Integrated six-channel differential voltage measurement with high precision ADC conversion and synchronized current sensing.
• Onboard passive balancing capability utilizing low on-resistance MOSFETs with dedicated programmable timers and diagnostic functions.
• Supports both standard SPI and transformer-isolated daisy chain communication protocols for robust data exchange with microcontrollers.
• Designed with comprehensive fault verification and monitoring features to support ISO 26262 functional safety requirements.

Battery Management Applications

• Hybrid electric vehicle (HEV) and electric vehicle (EV) battery management systems
• High-voltage battery packs for automotive applications
• Energy storage systems (ESS)
• Uninterruptible power supply (UPS) systems

Battery Management Procurement Notes

Verify the specific suffix 'R2' indicates reel packaging when sourcing components. Confirm that the part number corresponds to the B-series variant which may have distinct lifecycle status compared to other series members. Ensure compatibility with the intended operating voltage range and communication interface requirements before finalizing procurement decisions.

Battery Management Selection Notes

Select this component for applications requiring precise monitoring of up to six lithium-ion cells. Consider the integrated balancing and diagnostic features for simplified board design. Verify that the system architecture supports either SPI or isolated daisy chain communication. Ensure the thermal environment remains within the specified operating temperature range for reliable performance.

Battery Management Part Context

This component belongs to the MC33772B family of battery cell controllers from NXP Semiconductors. It is engineered specifically for high-reliability environments found in automotive and industrial sectors. The device complements the MC33664 transceiver to enable scalable battery management architectures. It is part of a broader solution set that includes compatible microcontrollers like the MPC5xxx series.

Battery Management Replacement Considerations

The MC33772CTP1AE is a verified alternative within the same product family offering similar functionality. Check datasheet specifications for any differences in package type or electrical characteristics between the B and C series variants before substitution.

Battery Management FAQ

What is the maximum total voltage measurement error for the MC33772B?

The device specifies a maximum total voltage measurement error of 0.8 mV across its measurement channels.

Does the MC33772B support passive cell balancing?

Yes, it includes onboard passive balancing MOSFETs capable of handling up to 300 mA per channel with integrated diagnostics.

Which communication interfaces are supported by this IC?

The IC supports standard SPI communication at speeds up to 4 Mbps and isolated daisy chain communication at 2.0 Mbps when used with the MC33664 transceiver.