MCZ33903DS5EK

Specialized Overview

The MCZ33903DS5EK is a System Basis Chip (SBC) from NXP Semiconductors, designed as an advanced power management unit for microcontrollers. It integrates an enhanced high-speed CAN interface compliant with ISO11898-2 and -5 standards, supporting baud rates from 40 kb/s to 1.0 Mb/s. The device features a single LIN 2.1 interface with master termination capabilities. It includes two Low Dropout (LDO) regulators providing 5.0 V at up to 400 mA each, alongside multiple wake-up input pins configurable as output drivers. Operating within a supply voltage range of 5.5 V to 28 V, the component supports extended industrial temperature ranges from -40 °C to +125 °C.

Specialized Feature Summary

• Integrates an enhanced high-speed CAN physical interface with local and bus failure diagnostics and fail-safe operation modes.
• Includes a scalable LIN 2.1 interface with configurable master node termination resistor control.
• Features multiple low-power modes with extremely low quiescent current consumption and diverse wake-up sources.
• Provides comprehensive protection mechanisms including voltage, current, and temperature monitoring.

Specialized Applications

• Aircraft and marine systems
• Automotive and robotic systems
• Industrial actuator controls

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and lead-free status. Ensure compatibility with existing PCB footprints by checking pin definitions. Confirm that the selected variant meets the required system specifications for voltage regulation and interface counts before finalizing procurement orders.

Specialized Selection Notes

Select this component when a single LIN interface and dual LDOs are sufficient for the target application. Verify that the 5.0 V regulator output aligns with the MCU requirements. Consider the exposed pad thermal performance if operating near maximum load conditions. Ensure the SPI configuration options match the diagnostic needs of the system design.

Specialized Part Context

This device belongs to the MC33903/4/5 family of second-generation System Basis Chips. It shares footprint compatibility with other variants in the series, facilitating modular design strategies. The 'D' version indicates specific internal design improvements over previous iterations, addressing issues related to slow ramp-up and oscillator stability while maintaining electrical parameter consistency.

Specialized Replacement Considerations

Direct substitutes within the same family include MCZ33903DD5EK/R2 for dual LIN configurations or MCZ33903DP5EK/R2 for zero LIN interfaces. These alternatives maintain pin compatibility but differ in integrated peripheral counts. Verify functional equivalence regarding regulator outputs and diagnostic capabilities before substitution.

Specialized FAQ

What is the maximum supply voltage supported by the MCZ33903DS5EK?

The device supports a normal operating DC supply voltage range up to 28 V, with transient conditions tolerating up to 40 V.

Does the MCZ33903DS5EK support external current expansion for the main regulator?

No, the datasheet specifies that the VDD output on the 33903 variant does not allow the usage of an external PNP transistor for current extension.

How many wake-up inputs are available in the MCZ33903DS5EK?

The device provides two programmable wake-up input pins, which can also be configured as output drivers or LIN master termination controls.