MCZ33905CS3EKR2

Specialized Overview

The MCZ33905CS3EKR2 is a System Basis Chip (SBC) from the second-generation MC33905 family, designed for automotive body and safety applications. It integrates an enhanced high-speed CAN interface compliant with ISO11898-2 and -5 standards, alongside a single LIN 2.1/J2602-2 interface. The device provides a configurable MCU voltage regulator (VDD) available in 3.3 V or 5.0 V options, delivering up to 150 mA internally, extendable to 300 mA with an external ballast transistor. It features low power modes with quiescent currents as low as 15 µA, multiple wake-up sources, and advanced fail-safe state machine management.

Specialized Feature Summary

• Integrates an enhanced high-speed CAN transceiver with local and bus failure diagnostics and fail-safe operation.
• Includes a single LIN 2.1/J2602-2 interface with configurable master terminal outputs.
• Provides scalable power management with a flexible MCU voltage regulator and auxiliary regulators.
• Supports ultra-low power consumption modes with innovative wake-up event management.

Specialized Applications

• Body Controller Modules
• Seat Module Control
• Door Module Systems

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm pinout compatibility and electrical characteristics. Ensure the selected variant matches the required VDD output voltage and LIN interface configuration for the target application design.

Specialized Selection Notes

Select this component when a system requires integrated high-speed CAN and single LIN communication within a compact package. Consider the internal current limits of the VDD regulator and determine if an external ballast transistor is necessary to meet peak load requirements exceeding 150 mA.

Specialized Part Context

This part belongs to the MC33905 family of System Basis Chips, which are optimized as companion chips for microcontrollers in automotive environments. The family offers scalability through various configurations of LIN interfaces and I/O pins, allowing designers to reuse hardware designs across different product tiers.

Specialized Replacement Considerations

Compatible alternatives within the same family include MCZ33905CD3EK/R2 and MCZ33905BD5EK/R2. Verify that any substitute maintains the required SOIC-32 package and matches the specific VDD voltage and LIN interface count needed for the circuit.

Specialized FAQ

What is the maximum operating voltage range for the MCZ33905CS3EKR2?

The device operates within a supply voltage range of 5.5 V to 28 V, with a maximum input voltage capability of 27 VDC and support for 40 V load dump conditions.

How can the output current of the MCU voltage regulator be increased?

The internal LDO provides up to 150 mA. To achieve higher current capabilities up to 300 mA, an optional external PNP ballast transistor can be implemented.

Does the MCZ33905CS3EKR2 support functional safety features?

Yes, it includes an innovative fail-safe state machine linked to the SAFE pin, secured SPI with watchdog capabilities, and advanced cranking pulse management to ensure system reliability.