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MIC4480YME-T5 PMIC – Gate Drivers

The MIC4480YME-T5 is a Monolithic Gate Driver IC (GDI) that provides solutions for driving N-Channel MOSFETs or IGBTs used in many applications. This device has a low operating supply current and is designed with 3-A peak LED switch current at 24 V. It provides a high common mode transient immunity of 1000 V/µs, e.g. for fast switching IGBTs. The MIC4480YME-T5 is employed in applications such as the cold plate cooling system (CPCS), and many other industrial, automotive, and consumer applications.

Applications

The MIC4480YME-T5 has many uses in a variety of industrial, automotive, and consumer applications. It is designed for applications such as vacuum cleaners, portable misters, LED drivers, and CPCSs. The device is also suited for motor drives, lighting, air conditioners, and other high power applications.

Features

The MIC4480YME-T5 comes equipped with a few important features, namely:

• 3-A peak LED switch current at 24V
• 6uA typical operating supply current
• Overvoltage and overcurrent protection
• High CMTI (Common Mode Transient Immunity) of 1000 V/µs
• Internal dead time, up to 500ns
• Stackable to 6 pairs

Working Principle

The MIC4480YME-T5 is based on the principle of gate drive, which is a process of voltage pulse generation used to control power-switching semiconductor devices. In this process, the application of a drive voltage, current, or a combination of the two, sets up the device for operation. This is accomplished by applying a voltage across the parallel capacitors that create a pulse that is applied to the gate of the power switch. This causes the switch to turn on or off, depending on the magnitude of the gate drive voltage.

This voltage excursion, generally around 0.2V or higher depending on the device, is referred to as the threshold voltage and is required to set the specifications of the particular device. The MIC4480YME-T5 is designed with a programmable dead time of up to 500ns and it has 3-A peak LED switch current at 24 V. These features ensure that the device is capable of providing the necessary levels of drive voltage, current, and pulse widths at various frequencies in order to control the power switching devices.

Conclusion

The MIC4480YME-T5 is a monolithic gate driver IC (GDI) that provides solutions for driving N-Channel MOSFETs or IGBTs. It is designed with a low operating supply current and offers a high CMTI of 1000 V/µs. The device is suitable for a variety of industrial, automotive, and consumer applications and features such as an internal dead time of up to 500ns, overvoltage and overcurrent protection, and stackable groups of up to 6 pairs. It is based on the principle of gate drive, which is a process of voltage pulse generation used to control power-switching semiconductor devices.

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