BSP742TNT

Power Distribution Switches, Load Drivers Overview

The BSP742TNT is a single-channel high-side smart power switch from Infineon's Classic PROFET family, designed for automotive and industrial power distribution. It integrates an N-channel MOSFET with control logic in a compact SOIC-8 package. The device supports a supply voltage range of 5 V to 34 V and delivers a continuous output current of 800 mA. It features a maximum on-state resistance of 350 mOhms and includes comprehensive protection mechanisms such as over-current limiting at 4 A, thermal shutdown, and reverse polarity protection. Operating temperatures span from -40 °C to +150 °C.

Power Distribution Switches, Load Drivers Feature Summary

• Integrates high-side switching capability with intelligent diagnostic and protection functions
• Includes active short-to-ground detection and open-load diagnosis during off-state
• Provides robust thermal management through automatic thermal shutdown circuitry
• Features low on-state resistance for efficient power distribution

Power Distribution Switches, Load Drivers Applications

• Automotive lighting systems including headlamps and interior illumination
• Power distribution units (PDU) in vehicle electrical architectures
• Solenoid and relay driver applications requiring high-side control
• Industrial load switching for sensors and actuators

Power Distribution Switches, Load Drivers Procurement Notes

Verify the specific suffix 'TNT' against official Infineon documentation to confirm tape-and-reel packaging specifications and moisture sensitivity levels. Ensure compatibility with SOIC-8 footprint requirements and check for any regional manufacturing variations that may affect lead frame material or marking codes prior to finalizing procurement orders.

Power Distribution Switches, Load Drivers Selection Notes

Select this component when a single-channel high-side switch with integrated diagnostics is required for loads up to 800 mA. Consider the 350 mOhms on-resistance for efficiency calculations and verify that the 4 A current limit aligns with the protected load's fault characteristics. Ensure the operating temperature range meets the environmental constraints of the target application.

Power Distribution Switches, Load Drivers Part Context

This part belongs to Infineon's PROFET series, which combines power MOSFETs with CMOS control logic for smart switching applications. The Classic PROFET line focuses on cost-effective solutions with essential protection features like over-temperature and over-current handling, suitable for standard automotive and industrial power distribution tasks where advanced communication interfaces are not needed.

Power Distribution Switches, Load Drivers Replacement Considerations

Consult official Infineon substitution guides for verified alternatives within the PROFET family. Cross-reference pinout compatibility and electrical parameters such as Rds(on) and Iout when evaluating potential replacements.