H11B3M

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An optoisolator, sometimes known as an optocoupler, is one of the most popular methods of isolating electrical circuits. It consists of a light-emitting diode (LED) , which is "coupled" to a photo-sensitive device. The optoisolator isolates the input circuit from the output circuit, ensuring that they can operate independently. The H11B3M optoisolator belongs to the transistor, photovoltaic output category. This type of optoisolator provides excellent noise isolation and immunity to electrical transients.

The H11B3M consists of an infrared LED and an integrated photodetection circuit. It has a single terminal connection for power and ground. The LED is paired with an insulated output buffer that contains a voltage regulator, comparator, and driver. The voltage regulator maintains a constant, regulated output voltage even when the input voltage fluctuates. The comparator and driver turn on when the input voltage reaches a certain threshold. The H11B3M is capable of handling a maximum input voltage of 60 volts and a maximum output current of 30mA.

The optoisolator has two operating modes. The first mode is active, which is active when an input voltage is greater than the threshold. In this mode, the LED emits light, which is detected by the photodetection circuit. The current flow then activates the output buffer, which controls the output to the desired voltage level. The second mode is inactive, which is active when the input voltage drops below the threshold. When this happens, the LED turns off, and no light is detected. This causes the output buffer to become inactive, so the output voltage remains constant at the set level.

The H11B3M is ideal for a number of applications such as isolated load switching, logic translation, and noise suppression. It is also used in motor control circuits, switching power supplies, and automotive computer systems. It is also used in medical and industrial applications for safety and isolation purposes. The H11B3M optoisolator can be used in a variety of different circuits and applications, and it is one of the most reliable and cost-effective solutions.

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