Broadcom OptocouplerThe Broadcom optocoupler is an HCPL-817 series high-density phototransistor optocoupler contains a light-emitting diode optically coupled to a phototransistor. It is packaged in a 4-pin DIP package and available in wide lead spacing option and lead bend SMD option.Features and Benefits• Current transfer ratio is between 50% and 600%• Maximum forward voltage is 1.4V• Maximum input current is 5mA• Response time (tr:typ., 4?s at VCE = 2V, IC = 2mA, RL = 100?)Applications• Feedback circuit in power supply• I/O interfaces for computers• Signal transmission between circuits of different potentials and impedancesCertifications• CSA approved• IEC/EN/DIN EN 60747-5-5 approved• UL approved