MC33772BTC0AE

Overview

The MC33772BTC0AE 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 a maximum operating temperature of +125°C and a minimum of -40°C. The device features an LQFP-48 package and supports SMD/SMT installation. It provides a 5 V output at 5 mA and consumes 8 mA during operation. Key specifications include a total stack voltage measurement error of 0.8 mV and integrated passive balancing MOSFETs rated at 300 mA.

Feature Summary

• Supports differential cell voltage ADC conversion with up to 256 samples averaging and synchronized coulomb counting for precise state estimation.
• Features onboard 300 mA low Rdson passive cell balancing MOSFETs with programmable timers and diagnostic capabilities.
• Enables isolated communication via 2.0 Mbps transformer-based daisy chain or 4.0 Mbps standard SPI interfaces.
• Includes seven configurable ADC/GPIO/temperature sensor inputs and comprehensive fault diagnostics for OV, UV, OT, UT, and OC conditions.

Applications

• High-voltage Battery Management Systems (BMS) for Hybrid Electric Vehicles (HEV)
• Battery Management Systems for Electric Vehicles (EV)
• Energy Storage Systems (ESS)
• Uninterruptible Power Supply (UPS) systems

Procurement Notes

Verify the specific suffix 'BTC0AE' against official NXP documentation to confirm pinout, thermal characteristics, and packaging details. Ensure compatibility with the intended MCU interface, as this variant supports TPL communication. Confirm RoHS compliance status and moisture sensitivity levels prior to assembly planning. Cross-reference the part number with the manufacturer's current production status to ensure availability and long-term supply stability.

Selection Notes

Select this component for applications requiring high-precision voltage measurement with a maximum total error of 0.8 mV. It is suitable for designs needing integrated passive balancing without external discrete components. Consider this IC when isolation between the high-voltage battery stack and the low-voltage control unit is required via transformer coupling. Ensure the system architecture supports the 6-channel limit and utilizes the available GPIO/temperature inputs effectively.

Part Context

The MC33772B series belongs to NXP's portfolio of advanced battery management solutions, specifically engineered for safety-critical environments. It is compatible with MPC5xxx 32-bit MCU families and supports ISO 26262 functional safety standards up to ASIL D. The device is part of a long-term supply program, ensuring availability for automotive and industrial product lifecycles exceeding ten years.

Replacement Considerations

The MC33772CTC0AE is a confirmed substitute within the same family, offering similar functionality in the HLQFP48 package. Verify that any replacement maintains compatibility with the existing TPL communication protocol and PCB footprint constraints.