The CYPC357 (C-TP) with Optocouplers SOP-4 RoHS is a 4 channel Phototransistor Output IC manufactured by OCIC. This device has an optically isolated package that protects against noise and electrical interference while providing reliable operation. It comes with a number of features including good common mode and normal mode differential voltage rejection, low output saturation voltage, isolation voltage up to 5,000 Volts, a high common mode transimpedance, and a fast rise/fall time. It is compliant with RoHS directives and is suitable for a wide range of applications such as power supply control, optical isolation, signal transmission, and interface isolation.