LTV-247 is a four-channel transistor output optocoupler produced by Lite-On. It is available in SSOP-16 packaging form, which can directly replace four single-channel SSOP packaged transistor output optocouplers, significantly increasing the degree of integration and effectively reducing the PCB space it occupies, especially suitable for applications with limited mainboard space. For manufacturers, the placement machine can complete the installation of this optocoupler with a single placement, which is equivalent to placing a common single-channel optocoupler four times. This not only saves production costs but also greatly improves production efficiency.

The optocoupler is equipped with 16 pins in total, including 4 sets of anode, cathode, emitter, and collector pins, which correspond to the input and output control of the four channels respectively. Its operation is based on the principle of photoelectric conversion. The direct current signal on the input side drives the infrared LED to emit light, and the photoelectric transistor on the receiving side converts the received light into an electrical signal for output, thus achieving electrical isolation between the input and output circuits. At the same time, it has unidirectional transmission characteristics, and there is no output current under reverse voltage conditions, which can effectively avoid the mutual interference of the two sides of the circuit.