Part Number: TLP521
Function: Photocoupler GaAs Ired & Photo−Transistor
Package: DIP 4, DIP 8 Pin Type
Image and Pinouts:
The TLP521 is Photocoupler. A photocoupler, also known as an optocoupler or optoisolator, is an electronic component that combines an LED (light-emitting diode) and a photodetector (usually a phototransistor or a photodiode) within a single package. It is designed to provide electrical isolation between two circuits while allowing for signal transfer through the use of light.
The TOSHIBA TLP-521 consist of a photo−transistor optically coupled to a gallium arsenide infrared emitting diode.
The device offers two isolated channels in an eight lead plastic DIP package, while the TLP-521 provides four isolated channels in a sixteen plastic DIP package.
Photocouplers are widely used in various applications, including noise isolation, voltage level shifting, circuit protection, feedback control, motor drives, digital communication interfaces, and more. They provide a means to transfer signals across isolated circuits, protect sensitive components from electrical noise, and prevent ground loops.
Download TLP521 Datasheet PDF
Other data sheets are available within the file: TLP521-4