IL3185-3E

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Digital Isolators- IL3185-3E Application Field and Working Principle

Digital Isolators are integrated circuits designed to provide electrical isolation between circuits. Digital isolators are used in the field of electronics to isolate parts of a circuit that have different electrical characteristics or reference voltages. Digital isolators are also used to provide protection from transient voltages in a system.

The IL3185-3E digital isolator is a single-channel, low-cost, cmos-based, monolithic isolation component. This device is used to isolate digital signals from two circuits. It has a maximum ser-port data rate of 3 Mbps and an isolation voltage rating of 15 kV/µsec.

The IL3185-3E isolator enables multiple communication channels between two circuits, while maintaining signal integrity and preventing ground current flow between the circuits. It also eliminates the need for external relays, protection diodes, and opto-couplers, which leads to a smaller and more efficient design.

The operating principle of the IL3185-3E isolator is based on physical isolation between two circuits. The device isolates the two circuits via a capacitor and an active signal processor, thus reducing the voltage differential between the two circuits. The isolation capacitor maintains the electrical isolation, while the active processor enables signal communication between the circuits. The active processor generates a constant regulated voltage, which is then used to drive the output signal. This regulated voltage is also used to detect the logic level of the input signal.

The IL3185-3E has several additional features that make it an ideal choice for digital isolation applications. For example, it has an auto-power-on feature that enables the device to boot up automatically whenever a valid input signal is applied. It also has a wake-up function that can be used to detect when an input signal is asserted and activate the output stage. In addition, it has selectable logic thresholds that allow for compatibility with various digital logic families.

The IL3185-3E digital isolator is an ideal solution for applications that require electrical isolation, signal integrity, and protection from transients. It is suitable for a variety of applications including system isolation, logic isolation, current loop isolation, and digital data isolation. The device is highly reliable and easy to use, and its wide operating temperature range and low power consumption make it suitable for a variety of operating environments. As such, it is an ideal choice for a wide variety of digital isolation applications.

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