L6498L

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The L6498 is a monolithic device designed and built for controlling large and medium power inductive loads in switched mode power converters. It functions as a gate driver for power bipolar, enhancement-mode and MOS transistors. It may also be used for driving other inductive loads in DC-to-DC converters.

This device is a member of the STMicroelectronics family of products and is classified as part of the PMIC (Power Management IC) family. Specifically, it falls in the category of Gate Drivers and is used primarily to control the gate voltage on high-side and low-side power MOSFET switches. This is because gate drivers function to amplify the control signal given to the gate of the power MOSFET switch in order to properly switch on and off the device.

The L6498 accepts very low-level power control signals (up to 0.5V) and it can drive both high-side and low-side N-channel MOSFET switches having a total gate charge of up to 25nC each. The device may also be used to drive IGBT QFN chips, as well as provide necessary protection from overvoltage and overcurrent by its on-chip protection circuitry. It also provides temperature protection via its integrated thermal protection circuitry, which helps to protect the sensitive components from overheat conditions.

The L6498 consists of an input stage, an output driver stage, and protection circuitry. The input stage receives an input signal from the primary control circuit. The input stage then amplifies this signal and provides the necessary voltage to properly switch the power MOSFET switches. The output stage is responsible for driving the loads, such as the N-channel MOSFET switches. Lastly, the protection circuitry is in charge of overall device protection. By monitoring voltages and currents, the protection circuitry is able to detect any fault conditions and protect the device from overvoltage and overcurrent.

The L6498 is a very useful device for regulating power management in electronic applications. By using this device, designers can easily control the voltage and current delivered to their devices in a variety of applications. It is a highly integrated device that can save time, money, and design effort, as well as provide superior performance in power management applications.

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