ISL3280EIHZ-T7A Integrated Circuits (ICs)

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ISL3280EIHZ-T7A is an integrated circuit (IC) for voltage translation and signal conditioning. It is a single-channel, bi-directional transceiver with an integrated isolated DC-DC converter, allowing for isolated communication between two power systems. The product is intended for use in applications requiring high voltage and current isolation, including DC motor control, load cell balancing, RS-232/CAN and other communications bus interface, and current loop measurements in process control.

Application Fields

The ISL3280EIHZ-T7A transceiver has many applications, particularly in industrial and automotive industries. Examples of these applications include:

• DC Motors: This transceiver can be used in applications that require driving and controlling DC motors over long distances, such as remote-control systems.
• Load Cell Balancing: The ISL3280EIHZ-T7A can be used in balance systems, such as weighing scales and load cells, for transmitting and receiving accurate data over long distances.
• RS-232/CAN and other Communications: This transceiver can be used to interface well-isolated systems, by leveraging its low-power and low-noise conversion capability.
• Current Loop Measurements: This transceiver can be used in applications requiring precise current loop measurements in process control, such as in industrial automation.

Working Principle

The ISL3280EIHZ-T7A transceiver comprises two main sections: the transceiver section and the DC-DC converter section. The transceiver section is responsible for converting the input signals, while the DC-DC converter section provides the isolation between the input and output circuits with no direct connection.

The transceiver section is composed of two stages, the receive stage and the transmit stage. The receive stage converts the input voltage from the source to the output voltage that can be adapted to the receiving circuit, while the transmit stage converts the output voltage from the source to the input voltage that can be adapted by the transmitting circuit. This allows for bi-directional voltage-level translation—the transceiver can both receive and transmit signals.

The integrated DC-DC converter provides the isolation between the input and the output sides. It consists of two power converters, the primary side converter (PSC) and the secondary side converter (SSC). The PSC is a high-voltage DC-DC power converter that steps down the input voltage to a lower voltage and provides isolation by transforming the input current to the output side of the IC. On the output side, the SSC takes the high-voltage input and steps it up to the desired output voltage for the output circuit to use.

The ISL3280EIHZ-T7A transceiver can also provide a variety of protections to the driver system. It includes protection against over-voltage, under-voltage, short-circuit, and temperature. In addition, the transceiver also provides a power-reduction and current-limiting feature that helps reduce power consumption and current surges.

Conclusion

The ISL3280EIHZ-T7A transceiver is a versatile IC with a wide range of applications. It features voltage translation, signal conditioning, and isolation capabilities, making it suitable for different types of industrial and automotive applications. The device also provides protection against over-voltage, under-voltage, short-circuit, and temperature shocks, as well as power-reduction and current-limiting capabilities.

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