ELD205(TA)-V

Overview

The ELD205(TA)-V is a dual-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode and phototransistors in an 8-SOP package to provide electrical isolation between input and output circuits. The device features a high insulation voltage of 3750 Vrms, ensuring robust safety standards for signal transmission. Key electrical parameters include a typical turn-on time of 5µs and turn-off time of 4µs at 10mA forward current. The current transfer ratio ranges from 40% to 80%, with a maximum collector-emitter voltage of 80V. It operates within a temperature range of -55°C to 110°C.

Feature Summary

• Provides galvanic isolation between input and output circuits using infrared LED and phototransistor technology.
• Dual-channel configuration allows simultaneous signal transmission in a compact surface-mount package.
• High insulation voltage capability ensures reliable protection against high-voltage transients.

Applications

• Digital logic signal transmission and level shifting
• Power supply control and switching circuits
• Electrical isolation between different circuit systems

Procurement Notes

Verify the specific suffix (TA) against the manufacturer's latest datasheet to confirm pinout compatibility and packaging details. Ensure that the operating temperature range and isolation voltage requirements match the target application specifications before finalizing procurement decisions.

Selection Notes

Select this component when dual-channel isolation is required in a small footprint. Consider the 3750 Vrms insulation rating for safety-critical applications. Evaluate the 5µs/4µs switching speeds against system timing requirements to ensure adequate performance for the intended data rates.

Part Context

This part belongs to the ELD series of optocouplers from Everlight, designed for general-purpose isolation tasks. The ELD205 variant specifically offers dual channels, distinguishing it from single-channel models like the EL205. It serves as a solution for noise immunity and ground loop elimination in electronic designs.

Replacement Considerations

Check for direct replacements such as the ELD205(TB)-V or other dual-channel SOP8 optocouplers from compatible manufacturers. Verify pin-to-pin compatibility and identical electrical characteristics before substituting to avoid redesign efforts.

FAQ

What is the maximum insulation voltage for the ELD205(TA)-V?

The maximum insulation voltage is 3750 Vrms, providing high-level electrical isolation between the input and output sides.

Does the ELD205(TA)-V support high-speed digital signals?

It supports moderate-speed digital signals with typical switching times of 5µs for turn-on and 4µs for turn-off, suitable for many logic interface applications.