MC34904C3EKR2

Power Management - Specialized Overview

The MC34904C3EKR2 is a System Basis Chip (SBC) designed as an analog companion for microcontrollers in industrial applications. It integrates voltage regulators, high-speed CAN and LIN interfaces, monitoring, and control features. The device utilizes SMARTMOS technology and includes an enhanced high-speed CAN interface compliant with ISO11898-2 and -5 standards, featuring local and bus failure diagnostics. It supports baud rates from 40 kb/s to 1.0 Mb/s per ISO11898-5. Key power management functions include a configurable MCU voltage regulator (5.0 V or 3.3 V), an auxiliary SPI-configurable regulator, and multiple undervoltage detections. The chip offers low quiescent current in low-power modes and supports various wake-up sources including CAN/LIN bus activity, I/O transitions, timers, and SPI messages.

Power Management - Specialized Feature Summary

• Integrated enhanced high-speed CAN interface with ISO11898-2/5 compatibility and built-in diagnostics
• Configurable voltage regulators for MCU and auxiliary ICs with overcurrent and undervoltage protection
• Multiple wake-up sources supporting low-power mode operations via bus, I/O, timer, or SPI
• SMARTMOS technology enabling advanced monitoring and fail-safe operation modes

Power Management - Specialized Applications

• Industrial module designs requiring robust communication and power management
• Microcontroller companion circuits for system basis integration
• Applications demanding high-speed CAN connectivity with diagnostic capabilities

Power Management - Specialized Procurement Notes

Verify the specific suffix 'C3EKR2' against official NXP documentation to confirm package type, temperature range, and tape/reel specifications. Confirm end-of-life status implications for new designs. Ensure compatibility with existing PCB footprints and thermal requirements. Check for any recommended replacement parts if this component is discontinued. Validate ordering information through authorized distributors or NXP directly.

Power Management - Specialized Selection Notes

Select this SBC when integrating a microcontroller with high-speed CAN and LIN interfaces in industrial environments. Consider its integrated voltage regulation and diagnostic features to simplify board design. Evaluate its low-power wake-up capabilities against system energy efficiency requirements. Ensure the required output voltages and current capabilities meet the target MCU and peripheral loads. Verify functional safety and reliability needs align with the device's industrial specifications.

Power Management - Specialized Part Context

The MC34904 belongs to NXP's System Basis Chip family, which combines power management and communication interfaces into a single solution. These chips are designed to reduce component count and board space while enhancing system reliability. The MC34904 specifically targets industrial markets, offering robust features like SMARTMOS technology and comprehensive diagnostics to support complex microcontroller-based systems.

Power Management - Specialized Replacement Considerations

The source document explicitly states that the MC34904 is End of Life and not recommended for new designs. No specific public substitute part numbers are provided in the available text. Engineers should consult NXP sales channels or technical support for current alternative recommendations suitable for industrial applications.