VLA555-02R

Overview

The VLA555-02R is a hybrid integrated circuit designed as a dual IGBT gate driver with an isolated DC/DC converter. It features a built-in short circuit protection mechanism with soft shutdown and a collector clamp circuit. The device provides an output peak current of ±24A and supports an electrical isolation voltage of 4000 Vrms. It utilizes a CMOS compatible input interface and fiber optic communication. The main circuit voltage rating for the -02R variant is 1200V, distinguishing it from the 840V rated -01R model.

Feature Summary

• Integrated isolated DC/DC converter eliminates external power supply requirements
• Built-in short circuit protection with soft shutdown capability
• Collector clamp circuit protects against overvoltage transients
• Fiber optic interface ensures high-speed signal transmission

Applications

• Gate driver for 1700V New Mega Power Dual IGBT modules
• CM1800DY-34S module drive applications
• High-power industrial motor drives
• Traction inverter systems

Procurement Notes

Verify that the specific part number suffix matches the required main circuit voltage rating. Confirm compatibility with the target IGBT module package type before procurement. Ensure the ordering documentation explicitly references the VLA555-02R designation to avoid confusion with the lower voltage -01R variant.

Selection Notes

Select this component when driving IGBT modules requiring 1200V or higher ratings within the Mega Power Dual package family. The integrated DC/DC converter simplifies board layout by removing the need for separate isolated power supplies. Consider the fiber optic interface requirements for system design.

Part Context

This component belongs to the VLA555 series of dual gate drivers manufactured by Powerex. The series includes variants tailored for different voltage levels, specifically the -01R for 840V applications and the -02R for 1200V applications. Both share identical physical dimensions and functional interfaces.

Replacement Considerations

The VLA555-01R serves as a direct hardware substitute but is limited to 840V main circuit voltages. Verify that the application voltage does not exceed the 840V limit if using the -01R. No other cross-model replacements are documented.