LTV-845

Transistor, Photovoltaic Output Optoisolators Overview

The LTV-845 is a four-channel transistor output optocoupler manufactured by Lite-On Inc. It features photodarlington outputs housed in a 16-pin PDIP package. The device provides an insulation voltage of 5000 Vrms and supports a maximum forward current of 50 mA with a typical forward voltage of 1.4 V. Key electrical parameters include a collector-emitter saturation voltage of 1 V, a maximum collector current of 80 mA, and a collector-emitter voltage rating of 35 V. The current transfer ratio ranges from 600% to 7500%, with a rise time of 300 µs.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Four independent channels for multi-signal isolation
• Photodarlington output structure for high gain
• Wide lead spacing package design
• High insulation voltage capability

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring multi-channel isolation
• Power supply feedback loops
• Signal transmission between isolated circuits
• Microprocessor interface circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix (e.g., S) against the datasheet to confirm package type and pin configuration. Ensure the manufacturer part number matches the required channel count and output type. Confirm RoHS compliance status if environmental regulations apply. Cross-reference the supplier's documentation with the official Lite-On datasheet to validate all electrical ratings before procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multiple isolated signals require transmission within a single package. The photodarlington output offers high current transfer ratios suitable for driving logic inputs directly. Consider the 300 µs rise time for timing-sensitive applications. Ensure the PCB footprint accommodates the 16-pin DIP or SMD variant as specified in the ordering information.

Transistor, Photovoltaic Output Optoisolators Part Context

The LTV-845 belongs to Lite-On's family of transistor output optocouplers. It is designed alongside similar devices like the LTV-815M, which offers a single-channel configuration. The product line emphasizes reliable optical isolation for industrial and commercial electronics, providing a compact solution for signal coupling between low-voltage digital circuits and higher-voltage power stages.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Check for direct substitutes such as the LTV-845S for surface mount requirements. Verify that alternative components match the 4-channel configuration and photodarlington output type. Ensure replacement parts maintain equivalent insulation voltage and current transfer ratio specifications to guarantee circuit performance compatibility.