TLP291(TP,E)

Transistor, Photovoltaic Output Optoisolators Overview

The TLP291(TP,E) is a single-channel transistor output optocoupler manufactured by Toshiba Semiconductor and Storage. It integrates a gallium arsenide infrared emitting diode with a phototransistor in a compact SO-4 surface-mount package. The device provides an isolation voltage of 3750 Vrms, ensuring robust signal transmission across isolated circuits. 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, supporting efficient digital signal processing. It operates within a temperature range of -55°C to 110°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates a GaAs infrared LED with a phototransistor for high-speed DC signal transmission
• Provides high insulation strength with a rated isolation voltage of 3750 Vrms
• Features a thin and small SO-4 surface mount package suitable for high-density mounting

Transistor, Photovoltaic Output Optoisolators Applications

• Small switching power supplies
• Programmable controllers
• Communication interface circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix (TP,E) against the manufacturer's datasheet to confirm lead-free compliance and RoHS status. Ensure the ordering code matches the required tape-and-reel or cut-tape packaging format. Cross-reference the isolation voltage rating and CTR rank if strict safety or gain specifications are critical for the design.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel solution with high isolation voltage is required in a minimal footprint. The 50 mA output current capability supports direct driving of low-current loads. Consider the 2 µs rise time for applications requiring moderate speed. Verify that the 80 V collector-emitter voltage meets the circuit's peak voltage requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP291 series of transistor output optocouplers from Toshiba. The series is designed for general-purpose isolation in industrial and consumer electronics. The TLP291(TP,E) variant specifically denotes the single-channel configuration in the SO-4 package, distinguishing it from multi-channel variants like the TLP291-4.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Check for pin-compatible alternatives such as the TLP291(GB) or TLP291(V4GRTP,SE) if different isolation ratings or current transfer ratios are needed. Ensure any substitute maintains the 3750 Vrms isolation requirement and fits the SO-4 package constraints.