TLP155(TPL,E

Isolators - Gate Drivers Overview

The TLP155(TPL,E) is a logic output optocoupler manufactured by Toshiba Semiconductor and Storage. It integrates a GaAlAs infrared LED with a high-speed photodetector featuring an internal Faraday shield. The device provides 3750 Vrms isolation and a common-mode transient immunity of ±15 kV/µs. Key electrical parameters include a maximum forward current of 20 mA, a forward voltage of 1.55 V, and a supply voltage range of 10 V to 30 V. The output stage utilizes a totem pole configuration capable of driving IGBTs or MOSFETs with a peak output current of ±0.6 A. Propagation delays are typically 35 ns for rise time and 15 ns for fall time, with a maximum delay of 170 ns. Operating temperatures range from -40°C to +100°C.

Isolators - Gate Drivers Feature Summary

• Integrated high-speed photodetector with internal Faraday shield for enhanced noise immunity
• Totem pole output structure designed for direct gate driving of power devices
• High common-mode transient immunity rated at ±15 kV/µs
• RoHS compliant construction in a compact SO6 package

Isolators - Gate Drivers Applications

• Direct gate driver circuits for IGBTs
• Gate driver circuits for power MOSFETs
• Plasma Display Panel (PDP) inverters
• Industrial inverter systems

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix against official Toshiba documentation to confirm packaging type and reel specifications. Ensure the component matches the required isolation voltage and output current capabilities for the target application. Cross-reference the datasheet revision date to confirm parameter accuracy. Confirm RoHS compliance status through the manufacturer's certification documents rather than distributor summaries.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching and robust noise immunity are required in isolated gate drive applications. The totem pole output eliminates the need for external pull-up resistors, simplifying circuit design. Verify that the load current requirements do not exceed the ±0.6 A peak output capability. Consider the thermal performance within the specified -40°C to +100°C operating range during system integration.

Isolators - Gate Drivers Part Context

This device belongs to the TLP155 series of photocouplers, which utilize GaAlAs infrared emitters and integrated photodetectors. The series is engineered for industrial and consumer applications requiring reliable electrical isolation. The TLP155 variant specifically targets high-power switching environments where fast response times and high common-mode rejection are critical for system stability and safety.

Isolators - Gate Drivers Replacement Considerations

Consult Toshiba's official substitution guide for verified alternatives. Generic optocouplers may lack the specific ±15 kV/µs CMTI rating or the integrated Faraday shield architecture. Ensure any substitute maintains the same SO6 pinout and logical output polarity to prevent circuit modification.