TLP5774H(D4LF4,E

Overview

The TLP5774H(D4LF4,E is a single-channel optically isolated gate driver manufactured by Toshiba Semiconductor and Storage. It features a wide lead design for enhanced creepage distance and supports high-temperature operation up to +125°C. The device provides 5000 Vrms isolation voltage and delivers a peak output current of 4A. Key electrical parameters include a forward voltage of 1.65 V, a maximum forward current of 8 mA, and a power dissipation of 20 mW. Propagation delays are limited to 150 ns, with typical rise and fall times of 56 ns and 25 ns respectively. It operates within a temperature range of -40°C to +125°C and is housed in a 6-SO package.

Feature Summary

• Integrated 4A peak output current capability for direct gate drive applications
• Wide lead pitch design to ensure increased insulation clearance and creepage distance
• High thermal stability supporting continuous operation at junction temperatures up to 125°C
• Robust common-mode transient immunity rated at 35kV/µs for noise-resistant switching

Applications

• Insulated gate bipolar transistor (IGBT) gate driving in industrial inverters
• MOSFET gate drive circuits in high-frequency power supplies
• Solid-state relay (SSR) output stages requiring high isolation
• Motor control systems utilizing isolated signal transmission

Procurement Notes

Verify the specific suffix D4LF4 to confirm the inclusion of wider lead spacing and VDE certification, as these distinguish it from standard variants. Ensure the ordering code matches the required tape-and-reel packaging format. Cross-reference the manufacturer part number against official Toshiba documentation to validate RoHS compliance status and current production lifecycle stage before finalizing procurement orders.

Selection Notes

Select this component when application requirements demand higher isolation creepage distances than standard SO-6 packages provide. The wide lead configuration is critical for meeting stringent safety standards in high-voltage environments. Consider the 4A drive strength relative to the target switch's gate charge requirements. Verify that the 150ns propagation delay meets the timing constraints of the specific power conversion topology being implemented.

Part Context

This device belongs to the TLP5774 series of optically isolated gate drivers designed for robust power electronics applications. The series emphasizes high reliability and safety through advanced optical coupling technology. Variants within the family differ primarily in packaging styles, lead geometries, and regional safety certifications, allowing designers to choose configurations that best fit their mechanical and regulatory constraints.

Replacement Considerations

The TLP5774H(D4TP4,E serves as a functional substitute within the same series, offering identical electrical performance but differing in packaging type and potentially lead specifications. Verify that any replacement maintains the required 5000Vrms isolation rating and 4A output current capability. Confirm that the physical footprint and pinout compatibility match the existing PCB layout to ensure seamless integration without redesign.