MC33772BTP2AER2

Overview

The MC33772BTP2AER2 is a battery cell controller IC from NXP Semiconductors, designed for lithium-ion battery management in automotive and industrial applications. It supports 3 to 6 battery cells and features advanced voltage and temperature measurement with a maximum total stack voltage measurement error of 0.8 mV. The device integrates synchronous current measurement with a programmable gain amplifier (PGA) offering ±0.5% accuracy and an integrated coulomb counter. It includes on-board passive balancing MOSFETs rated at 300 mA. Communication interfaces include isolated TPL (Transformer Isolated Daisy Chain) at 2.0 Mbps or SPI at 4.0 Mbps. Operating supply voltage ranges from 6 V to 30 V, with transient tolerance up to 42 V. It operates within a temperature range of -40°C to +125°C and is housed in a 48-pin LQFP package.

Feature Summary

• Supports ISO 26262 functional safety standards up to ASIL D capability.
• Integrates on-board passive balancing with diagnostic capabilities and programmable timers.
• Provides high-precision synchronized voltage, current, and temperature measurements.
• Features isolated communication options including TPL and standard SPI interfaces.

Applications

• Hybrid Electric Vehicle (HEV) battery systems
• Electric Vehicle (EV) high-voltage battery packs
• Energy Storage Systems (ESS)
• Uninterruptible Power Supply (UPS) systems

Procurement Notes

Verify the specific suffix 'BTP2' against official NXP documentation to confirm package type, tape & reel specifications, and regional compliance status. Ensure compatibility with target MCU interfaces and thermal requirements before integration. Confirm RoHS and REACH compliance certificates are available for the specific manufacturing batch.

Selection Notes

Select this component for applications requiring ASIL D safety support and precise cell monitoring. Compare with MC33772C series if higher channel counts or different packaging are needed. Consider the MC33664 for transformer isolation if using TPL mode. Evaluate power consumption and thermal dissipation characteristics relative to the system's balancing requirements.

Part Context

The MC33772B belongs to the MC33772 family of battery cell controllers, which are optimized for high-reliability lithium-ion battery management. This series is widely used in automotive and industrial sectors where safety and precision are critical. The 'B' variant typically denotes specific feature sets or package configurations within the broader product line.

Replacement Considerations

MC33772CTP2AER2

FAQ

What is the maximum total stack voltage measurement error?

The maximum total stack voltage measurement error is 0.8 mV.

Does the MC33772B support functional safety standards?

Yes, it supports ISO 26262 up to ASIL D safety capability.