SPSB081C5-TR

Power Management - Specialized Overview

The SPSB081C5-TR is an automotive-grade power management system IC designed for electronic control modules. It integrates a CAN FD transceiver compliant with ISO 11898-2/2016 and SAE J2284, alongside a low-drop voltage regulator (V1) providing a fixed 5 V output for the microcontroller. The device includes a programmable SPI-controlled voltage tracker (V2) supporting 5 V or 3.3 V configurations. It features four high-side drivers for LEDs and sensors, all equipped with short-circuit protection and open-load diagnosis. The IC supports various standby modes with programmable wake-up capabilities to minimize power consumption.

Power Management - Specialized Feature Summary

• Integrates CAN FD physical communication layer with local and bus failure diagnosis capabilities.
• Provides dedicated low-drop voltage regulation for microcontrollers and configurable tracking regulators for peripheral loads.
• Includes four high-side load drivers with comprehensive diagnostic functions including short-circuit and open-load detection.
• Supports programmable periodic system wake-up and contact monitoring interfaces for enhanced energy management.

Power Management - Specialized Applications

• Automotive electronic control units requiring integrated power and communication management
• Systems utilizing CAN FD networks for vehicle data transmission
• Applications necessitating low-power standby modes with remote wake-up functionality

Power Management - Specialized Procurement Notes

Verify that the specific suffix C5 corresponds to the required voltage configuration and package type in official documentation. Confirm AEC-Q100 qualification status for your target automotive application. Ensure compatibility with the required CAN FD protocol standards. Check for any specific ordering suffixes that may alter pinout or electrical characteristics compared to the base SPSB081 series.

Power Management - Specialized Selection Notes

Select this component when a single IC solution is needed for both power distribution and CAN FD communication in automotive environments. It is suitable for designs requiring integrated diagnostics for high-side loads and low quiescent current in standby modes. Consider the fixed 5 V regulator option if the microcontroller supply does not require SPI-programmable tracking.

Power Management - Specialized Part Context

The SPSB081 series represents STMicroelectronics' approach to consolidating power management and communication interfaces into a single automotive-grade package. This integration reduces board space and simplifies design by combining LDOs, high-side switches, and transceivers. The series targets modern vehicle architectures demanding efficient power distribution and robust network connectivity within compact electronic modules.

Power Management - Specialized Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify functional equivalence carefully if considering alternatives from other manufacturers, particularly regarding CAN FD compliance and high-side driver specifications.