BD4740G-TR

Overview

The BD4740G-TR is a monolithic integrated circuit designed as a high-voltage N-channel MOSFET driver. It features an internal bootstrap diode and operates with a supply voltage range of 10V to 20V. The device provides a peak output current capability of 2A for driving external power MOSFETs efficiently. It incorporates short-circuit protection and under-voltage lockout mechanisms to ensure reliable operation in switching applications. The component is housed in a compact SOT-89-5 package, facilitating space-constrained designs.

Feature Summary

• Integrated bootstrap diode eliminates external component requirements
• Built-in short-circuit protection safeguards connected loads
• Under-voltage lockout prevents improper gate drive conditions

Applications

• Brushed DC motor control systems
• High-side power switching circuits
• Industrial automation motor drivers

Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging configuration when sourcing. Confirm the manufacturer designation matches Rohm Semiconductor to avoid counterfeit components. Check datasheet revisions for any updates to electrical characteristics or pin configurations prior to final procurement approval.

Selection Notes

Select this driver for applications requiring high-side N-channel MOSFET control without external bootstrap components. Ensure the load current does not exceed the 2A peak output limit. Verify that the system operating voltage remains within the 10V to 20V supply range for optimal performance and reliability.

Part Context

This component belongs to Rohm's series of high-voltage MOSFET drivers intended for motor control and power switching. It simplifies circuit design by integrating critical protection features and bootstrap functionality into a single package, reducing bill of materials count and board space compared to discrete solutions.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. Ensure replacement parts maintain compatible supply voltage ranges and peak output currents. Verify pin-to-pin compatibility if direct socket replacement is required.