LTV-844HS

Transistor, Photovoltaic Output Optoisolators Overview

The LTV-844HS is a transistor output optocoupler manufactured by Lite-On Inc. It features four independent channels within a single package, providing high-density isolation capabilities. The device utilizes NPN phototransistors for the output stage and supports both AC and DC input signals. Key electrical specifications include a maximum collector-emitter voltage of 35 V and a maximum forward current of 150 mA. The unit offers an insulation voltage of 5000 Vrms, ensuring robust safety isolation between input and output circuits.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Four-channel configuration for multi-signal isolation
• High insulation voltage rating for safety compliance
• Supports AC and DC input signal types
• NPN phototransistor output structure

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring multi-channel isolation
• Data communication interfaces with ground separation needs
• Power supply feedback loops in isolated converters
• Microcontroller I/O expansion with galvanic isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix (e.g., TA1, TP) against the required packaging and tape-and-reel specifications. Confirm that the operating temperature range meets the application environment requirements. Ensure the pinout configuration matches the target PCB footprint. Cross-reference the datasheet version to validate the latest electrical characteristics before finalizing component selection.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multiple isolated channels are required in a compact surface-mount form factor. Consider the 150 mA forward current capability for driving higher-power LEDs compared to standard 20 mA devices. Evaluate the 5000 Vrms isolation voltage against system safety standards. Compare rise and fall times if high-speed switching performance is critical for the data transmission rate.

Transistor, Photovoltaic Output Optoisolators Part Context

The LTV-844HS belongs to the LTV-844 series of quad-channel optocouplers from Lite-On. This series is designed to replace older dual-channel solutions where space savings and channel density are priorities. It serves as a direct interface between low-voltage digital logic and high-voltage industrial loads or noisy environments.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers: LTV-844M, LTV-844S, LTV-844-TA1.