HCPL-2219-000E

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HCPL-2219-000E is an optoisolator with logic output used to provide electrical isolation between a microcontroller/microprocessor and its peripherals such as digital signaling relays, contactors, servos and sensors. It is an integral part of the digital bus systems, particularly in industrial automation systems and noisy control systems.

The device is driven by a 5 V input source with internal MOSFET switch driving a high-power LED. The LED, when activated, creates an output current through the photodiode and voltage to the collector of a FET. The output is in the form of a logic level 1 or 0 at the collector of the FET.

HCPL-2219-000E provides isolation between the sending and receiving sections of the digital circuit. This isolates the receiving section from any electrical noise on the sending line and also prevents any electrical pulses from interfering with the receiving components.

HCPL-2219-000E uses a phototransistor rather than an ordinary transistor to turn on and off the output signal. The phototransistor is sensitive to light and so it can be operated at much lower voltages, making it suited to digital switching applications. The phototransistor is also immune to electrical noise, making the device a good choice for applications that require a high degree of isolation.

The application fields of HCPL-2219-000E include power supply isolation, electrical noise filter and dual voltage isolation. It is widely used in industrial automation systems, control systems and major power transmission equipment as a logic output interface.

Besides, HCPL-2219-000E can also be used for data acquisition systems, interface protection, signal conversion and level shifting circuits, automotive detection and safety circuits. The device can also increase the reliability of the system by providing enhanced galvanic isolation.

The working principle of HCPL-2219-000E is based on the conventional optoisolator architecture. The device consists of an LED which emits light when a bias voltage is applied across its terminals. The emitted light is then received by the photodiode, which generates a current signal that is amplified and inverted by the internal amplifier. The resulting output signal is buffered by an output transistor to provide the required logic level or power transistor output level.

The logic level or power transistor output can be selected by setting the device\'s logic level or power output pins. The logic level output can be used for digital logic communication and the power transistor output can be used for driving relays, contactors, motors and other power electronics.

HCPL-2219-000E optoisolator with logic output can therefore provide a cost-effective, reliable solution for a wide range of applications requiring high voltage isolation and signal conversion. It offers excellent isolation performance, wide bandwidth and superior transient response performance. It is an ideal choice for industrial automation systems, power distribution systems and communication competes.

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