LEM2520TR22J

Fixed inductors are passive electronic components that use inductance to store energy in its magnetic field. They are one of the most commonly used components in both analog and digital circuits. The LEM2520TR22J is a type of fixed inductor and is widely used in a variety of applications and power electronic circuits.

The LEM2520TR22J is a fixed inductor that has a highly reliable and robust construction with a rated current of 22A. It features an inductance range of 25μH to 20H and a high saturation current, making this inductor ideal for a variety of applications and power electronic circuits. It is also designed to have excellent temperature stability and high inductance retention even when subjected to severe conditions.

The main application field of the LEM2520TR22J can be divided into three categories: power supply, charge pumps, and switching regulators. In the power supply application, this inductor is used to maintain current during the start-up phase of the power supply circuit, thus providing improved reliability and reduced output ripple thanks to the low DCR value. In charge pumps, the inductor is used to maintain a steady current during each cycle of the pump. This helps prevent voltage spikes from occurring and improves the overall performance of the system. Finally, in switching regulators, the LEM2520TR22J is used as a filter to reduce ripple in the output and provide a stable voltage for the load.

The working principle of the LEM2520TR22J is quite simple. When a current is applied to the inductor, a magnetic field is created in the core of the device. The magnetic field then induces an opposing current in the coil windings, which is proportional to the rate of change of the applied current. This induced current opposes the main current and is known as back EMF. As a result, the total inductance of the component increases, thereby allowing more current to be stored in the inductor.

In conclusion, the LEM2520TR22J is a highly reliable and robust type of fixed inductor which is widely used in a variety of applications and power electronic circuits. It is ideal for use in power supplies, charge pumps, and switching regulators due to its excellent temperature stability and its high saturation current. The working principle of this inductor is based on the fact that it stores energy in its magnetic field which generates a back EMF to oppose the main current.