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ACPL-H312-500E is an isolator IC designed by Avago Technologies and marketed to the industrial automation sector. This two-channel IC is used to isolate and drive large power loads, and consists of two isolated channels organized as input and output. It offers high current capability of up to 5A with a low typical RDS(ON).

Application Field of ACPL-H312-500E

The ACPL-H312-500E is a two-channel isolated gate driver subjected for industrial automation systems. It can be used to drive MOSFETs, IGBTs and other power-dissipative devices. It is ideal for applications that require high power density, such as motor drives, switch mode power supplies, high power LEDs and industrial control systems. This isolator IC is designed to handle high quality signals without any distortion. Other than that, it offers excellent level shifting capability and is therefore very well-suited for motor control applications.

Another great advantage offered by this IC is zero cross distortion (ZCD) for AC power switching applications. This makes the ACPL-H312-500E ideal for AC power switching applications like DC power supplies, inverters and other high power AC switching applications. It is resistant to RF noise and ESD, and offers a long-term reliability for these applications.

Working Principle of ACPL-H312-500E

The ACPL-H312-500E is based on the isolation principle, which is used to separate input and output signals. It uses a transformer to transfer signals from the input side to the output side without any direct electrical connection. The input signal is then amplified and converted to an isolated output signal, which is then used to drive the large power loads. The transformer is capable of providing complete galvanic isolation between the input and output signals. This ensures that the load is not affected by the disturbances on the input side.

The ACPL-H312-500E also offers over-voltage protection, which helps to protect the system against short-term overvoltage and continuous overvoltage. It also offers short-circuit protection and load fault detection, which helps to protect the system from any load faults that may occur due to a failed load or short circuit condition. The driver IC can also be set to different current levels by using external resistors.

In summary, the ACPL-H312-500E is a two-channel gate driver IC subjected to the industrial automation sector. It is used to isolate and drive large power loads, and offers high current capacity, zero cross distortion (ZCD), excellent level shifting, over-voltage protection, and short-circuit protection.

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