Isolators - Gate Drivers
Isolator Gate Drivers are the interface between power signals and an external MOSFET or Bridge architecture circuit. The technology types are capacitive coupling, magnetic coupling, and optical coupling with 1, 2, or 4 channels. The voltage isolation ranges from 1000Vrms to 7500Vrms and the propagation delay ranges from 30ns to 5ms.
Optoisolators - Logic Output
Logic output optoisolators use light to transmit information across an electrical insulation barrier, usually for safety or functional reasons. They are distinguished from other styles of optoisolator products by the incorporation of additional output stage circuitry for amplification and threshold detection, providing output signals that are compatible with common logic signal levels. These additional circuits require provision of an external power source for proper operation.
Optoisolators - Transistor, Photovoltaic Output
Transistor or photovoltaic output optoisolators use light to transmit information across an electrical insulation barrier, usually for safety or functional reasons. They are distinguished from other optoisolator types by their use of a simple phototransistor or photovoltaic cell (solar cell) as an output device. The outputs of these devices do not require an external power source for operation and are analog in character, allowing their use for transmitting analog information between circuits which cannot be electrically connected.
Optoisolators - Triac, SCR Output
Triac and SCR output optoisolators allow bi-directional or unidirectional control of an AC (alternating current) source while providing isolation between the control and load circuits. An LED is optically coupled to a photodiode in a single device package. The photodiode controls the gate of the Triac or SCR and may include zero cross circuity. These optoisolators are selected by on-state current, forward voltage, turn on time, and mounting type.