MC33772BTP1AE

Battery Management System Overview

The MC33772BTP1AE is a six-channel lithium-ion battery cell controller IC from NXP Semiconductors, designed for high-voltage battery management systems in automotive and industrial applications. It operates within a supply voltage range of 6 V to 30 V and supports transient voltages up to 40 V. The device integrates differential voltage and current ADCs, Coulomb counting, and temperature measurement capabilities. It features embedded passive balancing transistors with a 300 mA low on-resistance MOSFET per channel. Communication with the host MCU is supported via standard SPI or isolated TPL daisy-chain interfaces. The component is housed in an LQFP-48 package and complies with ISO 26262 ASIL D safety standards.

Battery Management System Feature Summary

• Integrates six channels for precise differential voltage measurement and total stack voltage monitoring with high accuracy.
• Includes synchronous advanced current measurement with integrated PGA and built-in Coulomb counter for state estimation.
• Features onboard passive cell balancing with programmable timers and diagnostic functions for each channel.
• Supports isolated TPL daisy-chain communication at 2.0 Mbps or standard SPI at 4 Mbps for secure data exchange.

Battery Management System Applications

• Hybrid electric vehicle (HEV) battery systems
• Electric vehicle (EV) powertrain batteries
• Energy storage system (ESS) modules
• Uninterruptible power supply (UPS) units

Battery Management System Procurement Notes

Verify the specific suffix 'TP1' against the official datasheet to confirm package type and tape-and-reel specifications. Confirm end-of-life status as distribution sources indicate potential obsolescence. Ensure compatibility with the intended host microcontroller interface, specifically checking SPI versus TPL requirements. Validate that the LQFP-48 footprint matches the PCB design constraints. Check for any required non-MPQ labeling if sourcing from specific regional manufacturing sites.

Battery Management System Selection Notes

Select this component when designing systems requiring ASIL D functional safety certification for lithium-ion battery monitoring. Choose the MC33772BTP1AE over other series members based on the specific package configuration and communication interface needs. Consider the integrated current sensing capabilities if external shunt amplifiers are undesirable. Evaluate the thermal performance within the LQFP-48 package for the expected operating temperature range of -40°C to +125°C.

Battery Management System Part Context

The MC33772 belongs to the MC33772B family of battery cell controllers, which are optimized for high-voltage applications. This family is compatible with NXP's MPC5xxx 32-bit MCU series. The device is part of a broader BMS ecosystem that includes communication gateways like the MC33664. It is recognized for its comprehensive diagnostic features and support for hot-plugging, ensuring robust operation in demanding automotive environments.

Battery Management System Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify availability of alternative packages within the same MC33772B family if the LQFP-48 form factor is unsuitable.