ACPL-K75T-000E

The ACPL-K75T-000E optoisolator-logic output combines a high-gain coupler with an open collector logic output. It is a well-suited device that provides design flexibility and user safety, by providing isolation between the input and output circuits. This device has a wide range of applications in optical data transmission systems, including logic level signal conversion and optical signal reception.

Application Field

The ACPL-K75T-000E is an ideal choice when isolating logic level signals from microprocessors or digital ICs. It can also be used in applications such as isolating microprocessor reset functions, enabling communications between two otherwise unconnected busses, and isolating analog signals from digital signal processes. In addition, it can be used to control circuitry, such as relays, transistors, and so on, from a more isolated electrical location. As a result, the ACPL-K75T-000E is an excellent choice for a wide range of applications.

Working Principle

The ACPL-K75T-000E consists of a photo-coupler and an open collector logic output. The photo-coupler isolates the input and output circuits, while the open collector logic output reduces the DC current. This reduces the possibility of electrical noise or unintended current between the input and output circuits. When the input is energized, the LEDs in the photo-coupler are energized, causing a current to flow in the reverse direction, creating a voltage drop across the output transistors. This causes the collector terminal to open, allowing current flow between the collector and the emitter terminals. As a result, the output stays at a logic level "L" until the input voltage is removed.

The ACPL-K75T-000E optoisolator-logic output provides superior electrical performance due to its low forward voltage drop, making it a well-suited device for applications needing to transfer low-level signals. Furthermore, the gain of the photo-coupler is optimized for connecting the input to the output, allowing for the device to be used in a wide array of applications requiring isolation. The device is compatible with multiple logic families, making it a versatile solution for many applications.