VNB49N04-E

Power Distribution Switches, Load Drivers Overview

The VNB49N04-E is a low-side N-channel power switch IC from STMicroelectronics' OmniFET family, housed in a D2PAK surface-mount package. It features a maximum on-resistance of 40 milliohms and supports a continuous output current of 28 amperes. The device operates with a load voltage up to 33 volts and requires no supply voltage. Key electrical parameters include a fixed current limit, overtemperature protection, and overvoltage protection. It is AEC-Q100 qualified for automotive applications and functions within a junction temperature range of -40°C to 125°C.

Power Distribution Switches, Load Drivers Feature Summary

• Integrates an N-channel power switch with non-inverting open/switch interface control.
• Includes built-in diagnostic status flag output for fault monitoring.
• Provides comprehensive protection against fixed current limits, overtemperature, and overvoltage conditions.

Power Distribution Switches, Load Drivers Applications

• Automotive power distribution systems
• Load switching in vehicle body electronics
• High-current DC load management

Power Distribution Switches, Load Drivers Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm package lead modifications referenced in public PCNs. Ensure compatibility with existing thermal and electrical design constraints before integration. Check for alternative sourcing options as standard availability may be restricted.

Power Distribution Switches, Load Drivers Selection Notes

Select this component for single-channel low-side switching applications requiring high current handling. Consider the 40 milliohm on-resistance for efficiency calculations. Verify that the D2PAK package fits the PCB layout. Ensure the control interface matches the system logic levels. Evaluate thermal dissipation requirements based on the 28 ampere current rating.

Power Distribution Switches, Load Drivers Part Context

This part belongs to the VNB49 series of VIPower and OmniFET devices. These are monolithic smart power switches designed for robust automotive environments. The series integrates power MOSFETs with control and protection circuitry on a single silicon die.

Power Distribution Switches, Load Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The product status is listed as End of Life. Designers should consult official replacement guides or contact the manufacturer directly for valid alternatives.