LTV-845S

Transistor, Photovoltaic Output Optoisolators Overview

The LTV-845S is a four-channel surface-mount optocoupler from Lite-On Inc., housed in a 16-pin PDIP gull-wing package. It features Darlington phototransistor outputs with a minimum current transfer ratio of 600% and a maximum of 7500%. The device provides 5000 Vrms isolation voltage and supports a maximum forward input current of 50 mA. Typical switching times are 60 µs for rise and 53 µs for fall. The output can withstand up to 35 V collector-emitter voltage and 80 mA collector current.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates four independent channels within a single compact surface-mount package
• Utilizes Darlington output configuration for high current gain capability
• Provides robust electrical isolation between input and output circuits

Transistor, Photovoltaic Output Optoisolators Applications

• High-density digital signal isolation in multi-channel communication systems
• Interface circuits requiring high current transfer ratios for low-level input signals
• Industrial control modules needing reliable galvanic isolation for multiple data lines

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designation, such as -TA or -TA1, to confirm tape-and-reel packaging requirements versus standard tube packaging. Ensure that the selected variant matches the required lead frame material and moisture sensitivity level for the intended assembly process. Cross-reference the manufacturer's latest datasheet to confirm compliance with RoHS directives and other relevant environmental standards before finalizing procurement orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when designing circuits that require simultaneous isolation of four distinct signal paths without increasing board space. The high current transfer ratio makes it suitable for driving loads directly from microcontroller pins with minimal input current. Consider the typical switching speeds when evaluating suitability for high-frequency data transmission applications compared to faster transistor-output alternatives.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the LTV series of optocouplers manufactured by Lite-On Inc., which offers various channel configurations including one, two, and four-channel options. The LTV-845S specifically addresses the need for multi-channel isolation in space-constrained designs. It shares the same core technology family as other LTV variants but distinguishes itself through its quad-channel architecture and surface-mount footprint.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers include LTV-845 and LTV-845M-V. Verify pin compatibility and electrical specifications against these alternatives to ensure functional equivalence in existing circuit designs.