ELD206(TA)

Overview

The ELD206(TA) is a dual-channel phototransistor output optocoupler manufactured by Everlight Electronics. It features an 8-pin SOP package with a width of 3.90mm. The device provides electrical isolation with a rated insulation voltage of 3750 Vrms. It utilizes NPN phototransistors for the output stage, supporting a maximum output voltage of 80V per channel. The collector-emitter saturation voltage is specified at a maximum of 400mV. The component operates within a temperature range of -55°C to 110°C and includes a base pin on the phototransistor outputs for improved switching performance.

Feature Summary

• Dual-channel configuration providing independent signal isolation paths within a single compact package
• High-voltage insulation capability rated at 3750 Vrms for safe galvanic separation between input and output circuits
• NPN phototransistor outputs with accessible base terminals to facilitate faster switching speeds and reduced storage time

Applications

• Industrial control systems requiring isolated signal transmission
• Computer peripheral interface circuits
• Power supply feedback loops for voltage regulation

Procurement Notes

Verify the specific suffix designation when ordering, as variations such as TA or TA-V may indicate differences in tape and reel packaging or moisture sensitivity levels. Confirm RoHS compliance status through the official datasheet before integration. Ensure the selected variant matches the required lead frame plating and internal die specifications for the target application environment.

Selection Notes

Select this component when dual-channel isolation is required in space-constrained designs utilizing surface-mount technology. The 8-SOP package offers a balance between pin count and board area efficiency. Consider the 3750 Vrms isolation rating for applications involving high potential differences between ground domains. The presence of base pins allows for external biasing if enhanced speed is necessary compared to standard transistor outputs.

Part Context

This part belongs to the ELD20x series of phototransistor optocouplers from Everlight. The series typically includes variants like ELD205 and ELD207, differing primarily in channel count or specific electrical characteristics. The ELD206(TA) specifically denotes the dual-channel version housed in the standard 8-pin small outline package, distinct from single-channel or quad-channel alternatives in the same family.

Replacement Considerations

Direct substitutes include other dual-channel phototransistor optocouplers with compatible 8-SOP footprints and similar isolation ratings, such as the PC817D or IL206, provided pinout compatibility and current transfer ratios meet the circuit requirements.