TLP5771H(D4LF4,E

Overview

The TLP5771H(D4LF4,E is a photocoupler integrating an infrared LED and a high-speed photo-IC, designed specifically as a gate drive coupler. It features a wider lead pitch to accommodate higher voltage isolation requirements. The device provides a peak output current of 1A and supports a common mode transient immunity of 50 kV/µs. It operates with a supply voltage range of 10 V to 30 V for the output side. The component offers 5000 Vrms isolation voltage and complies with VDE safety standards.

Feature Summary

• Integrates infrared LED with high-gain, high-speed photo-IC for efficient optical coupling
• Features wider lead spacing to enhance insulation performance and withstand higher voltages
• Provides high common mode transient immunity suitable for noisy power electronic environments
• Complies with VDE safety regulations for industrial and automotive applications

Applications

• IGBT gate driving in industrial inverters and motor drives
• MOSFET gate driving in high-frequency switching power supplies
• Isolated control interfaces in renewable energy systems such as solar inverters
• Automotive power electronics requiring high reliability and safety certification

Procurement Notes

Verify the complete part number including suffixes (D4LF4,E) to ensure correct packaging and compliance specifications. Confirm that the wider lead pitch matches your PCB footprint design. Check for RoHS and VDE certification marks on official datasheets or manufacturer certificates before procurement to ensure regulatory compliance for your specific application region.

Selection Notes

Select this component when high isolation voltage and wide creepage distance are critical. Ensure the PCB layout accommodates the increased lead spacing compared to standard SO6 packages. Verify that the required peak current does not exceed 1A and that the operating temperature range aligns with system thermal constraints. Consider the 10-30V supply requirement for the output stage during circuit design.

Part Context

This device belongs to Toshiba's TLP577xH series of infrared LED and photo-IC photocouplers. These components are engineered for isolated gate driving applications, combining fast response times with robust electrical isolation. The series is widely used in power conversion systems where reliable signal transmission across high potential differences is required.

Replacement Considerations

Check for direct substitutes within the TLP577xH family, such as TLP5771(D4,E), noting differences in lead width and safety certifications. Verify pinout compatibility and isolation voltage ratings before substitution. Consult official replacement guides from Toshiba Semiconductor and Storage for qualified alternatives.