TLP291-4(GB,E)

Transistor, Photovoltaic Output Optoisolators Overview

The TLP291-4(GB,E) is a quad-channel transistor output optocoupler manufactured by Toshiba Semiconductor and Storage. It features a 16-SOIC surface-mount package with four independent channels. The device provides an isolation voltage of 3750 Vrms, supporting high-voltage switching applications. Key electrical parameters include a maximum collector-emitter voltage of 80 V and a continuous collector current of 50 mA per channel. The typical rise and fall times are 2 µs and 3 µs, respectively, ensuring adequate speed for general-purpose digital isolation. The component operates within a temperature range of -55°C to 110°C and complies with RoHS standards.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates four independent phototransistor channels in a compact 16-pin SOIC package
• Provides high insulation strength with a 3750 Vrms isolation voltage rating
• Supports DC input signals with standard phototransistor output characteristics

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring multi-channel signal isolation
• Programmable logic controller (PLC) input/output modules
• Communication interface circuits for noise immunity

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'GB' against official Toshiba documentation to confirm insulation voltage ratings and safety certifications. Ensure the ordering part number matches the required package type and compliance standards. Cross-reference datasheet revisions to confirm parameter consistency before finalizing procurement specifications.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multiple isolated channels are required in a single package to reduce board space. Consider the 3750 Vrms isolation rating for applications demanding higher dielectric strength than standard 2500 Vrms devices. Evaluate the 50 mA collector current capability against load requirements to ensure sufficient drive capacity for downstream circuitry.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP291 series of transistor output optocouplers from Toshiba. The series offers various channel counts and insulation ratings. The TLP291-4 variant specifically addresses applications needing four isolated channels. The GB suffix typically denotes specific insulation and certification attributes distinct from other variants like TP or SE.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

TLP291-4(TP,E) is a related quad-channel variant with 2500 Vrms isolation. Verify if the lower insulation voltage is acceptable for the application. Other single-channel TLP291 variants exist but require multiple packages.