MC33774ASP1AER2

Overview

The MC33774ASP1AER2 is an 18-channel Li-Ion battery cell controller IC designed for automotive applications, featuring ASIL D certification. It supports a supply voltage range of 9 V to 90 V and provides an output current of 21 mA. The device operates within a temperature range of -40 °C to +125 °C and is housed in an LQFP-64 package with SMD/SMT mounting style.

Feature Summary

• Supports up to 18 battery cells with integrated passive balancing
• Meets ISO 26262 ASIL D functional safety requirements
• Enables isolated daisy-chain or SPI communication interfaces

Applications

• High-voltage battery management systems in electric vehicles
• Cell monitoring units for automotive traction batteries
• Battery junction box controllers for switchable architectures

Procurement Notes

Verify the specific suffix 'P1AE' against official NXP documentation to confirm package type and tape-and-reel configuration. Ensure compatibility with required thermal and electrical specifications for the target application environment before finalizing procurement decisions.

Selection Notes

Select this component for designs requiring high channel count and strict functional safety compliance. Consider the LQFP-64 package constraints and verify that the 21 mA output current meets the system's balancing requirements. Confirm interface compatibility with existing communication protocols.

Part Context

This part belongs to the MC33774 series of battery management ICs from NXP Semiconductors. It is engineered for high-reliability automotive environments, offering precise voltage and temperature measurement capabilities alongside robust diagnostic features for long-term operational stability.

Replacement Considerations

MC33774ATP1AE is a listed alternative variant within the same family. Verify pinout and software compatibility before substitution.