98-0317

PMIC - Gate Drivers

Gate drivers are components that are used to control the flow of current supplied to gates in power converters, such as DC-DC converters, AC-DC converters, and DC-AC converters. The primary purpose of gate drivers is to switch devices on and off safely and reliably. Gate drivers are also used to provide an interface between the system control logic and the logic-level switching elements in applications such as motor drives and inverters. They are usually used in combination with IGBTs, MOSFETs, and other switching devices.

One of the most popular types of gate drivers is the model 98-0317. This gate driver is designed to interface between the power supply and the gate of a Field Effect Transistor (FET) or Insulated Gate Bipolar Transistor (IGBT). It features a built-in current limiter that helps to protect the attached switching device from over-current situations. This protective feature is particularly important in applications such as motor drives and inverters that operate in harsh environments.

The 98-0317 gate driver also includes a low noise frequency-hopping drive circuit which helps to prevent system noise from affecting the operation of the gate drive. This feature is beneficial in applications such as power supplies that require clean power. In addition, the 98-0317 has a built-in overvoltage protection function that helps to protect the attached device from voltage spikes.

The working principle of the 98-0317 gate driver is relatively simple. This type of gate driver consists of two main components: the power stage and the driver stage. The power stage is responsible for switching the current supplied to the gate. It is usually composed of an IGBT or an MOSFET. The driver stage is the component responsible for providing control signals to the power stage. It typically consists of a high-voltage driver IC, and is connected directly to the power stage.

When a control signal is received by the driver stage, it activates the power stage, which switches the current supplied to the gate. The amount of current that is supplied to the gate is determined by the current limits set in the gate driver. Once the current limit is reached, the power stage will be deactivated, effectively "shutting off" the gate.

The 98-0317 gate driver is typically used in applications such as motor control, DC-DC converters, and AC-DC converters. It has a wide operating temperature range and is suitable for use in harsh environments. The gate driver also has a number of additional features, such as high overvoltage resistance and low switching noise, which make it well-suited for use in various applications.

In conclusion, the 98-0317 gate driver is a versatile component designed to control the current supplied to the gate of FET or IGBT. It features a built-in current limiter, low noise frequency-hopping drive, and a built-in overvoltage protection function. The working principle of the gate driver is relatively simple and is usually used in applications such as motor control, DC-DC converters, and AC-DC converters.