ACPL-T350-360E

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Isolators are important components in industrial and laboratory systems. They provide electrical isolation and ensure that interconnected devices operate safely while preventing the transmission of electrical noise. A popular type of isolator is the ACPL-T350-360E gate driver. This article covers the application and working principle of this commonly used isolator.

Applications

The ACPL-T350-360E is a Galilean optical-isolator with integrated gate drive. It provides electrical isolation between inputs and outputs of two different circuits, making it suitable for use in applications that require electrical isolation. This device is designed to drive the gate of an insulated-gate bipolar transistor (IGBT) module, as well as small-signal power MOSFETs and other high-power, DC-voltage switching components. It is recommended in applications such as solar inverters, servo drives, motor controllers, uninterruptible power supplies (UPS), three-phase AC motor starters, and other process control and automation equipment.

The ACPL-T350-360E provides a high-saturation current of up to 3A in the high-side driver and up to 3.3A in the low-side driver, making it suitable for applications requiring large currents. The device is capable of operating over a wide temperature range of -40°C to +120°C, providing reliable performance in harsh environments. It has a wide operating voltage range of +1V to +15V, making it compatible with a variety of gate configurational requirements. The device is also designed with a built-in over-temperature protection, which reduces the risk of operation during abnormal temperatures.

Working Principle

The ACPL-T350-360E isolator converts an opto-electrical signal input into an electrical signal output, allowing for isolation between two circuits. It works by using a combination of LED and phototransistor technology to convert an electrical signal into an optical signal, and then back to an electrical signal. The LED emits light when a current is passed through it, which is then detected by a phototransistor and converted back to an electrical signal.

The ACPL-T350-360E is designed to minimize error in electrical isolation between two devices, due to its low-dispersion lens and large input current. The device also features a low EMI filter and noise-reduction technology, which results in improved output quality and signal integrity in applications such as motor controllers or solar inverters. The low EMI filter also helps to reduce noise emissions in production facilities and laboratory systems. Finally, the device is designed with integrated temperature protection, which can help to prevent damage in overheating situations.

Conclusion

The ACPL-T350-360E gate driver is a popular type of isolator used for providing electrical isolation between two circuits and driving the gate of an IGBT module. It is capable of providing a high-saturation current and operating over a wide temperature range, making it suitable for a variety of applications. The device is also designed with a low EMI filter and flexible operating voltage range for improved output quality and signal integrity. Finally, the device is designed with a built-in temperature protection to protect against unintentional overheating.

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