SL22 20007-A

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Inrush current limiters (ICLs) are devices used to limit the amount of current that can flow through an electrical load when first powered on. The SL22 2007-A is an example of an ICL and is specifically designed for applications with a narrow line voltage range such as DC/DC converters. In this article, the application field and working principle of the SL22 2007-A Inrush Current Limiter will be discussed.

The SL22 2007-A Inrush Current Limiter is designed to provide low power loss and fast response time over a wide temperature range. This ICL is particularly well suited for DC/DC converters, LED lighting, motors, thermostats, switches, and power supplies. It is designed to limit the inrush current to a predetermined value, while allowing high inrush current operation without causing any damage to the connected load.

The SL22 2007-A Inrush Current Limiter utilizes a simple bridging circuit to limit the inrush current. The device works by using two shunt resistors and a pair of semiconductors that are connected in a series. The incoming power is connected to the two shunt resistors and the semiconductors. The incoming current then causes a voltage drop across the shunt resistors, which is proportional to the amount of current flowing in the circuit. The voltage drop is then used to adjust the gate voltage of the semiconductors, in turn controlling the amount of current that can flow through them.

The SL22 2007-A Inrush Current Limiter also features some built in protections to prevent damage to the connected load. For example, the device is designed to shut off any current that exceeds the maximum limit set by the user. Furthermore, the SL22 2007-A is designed with an over temperature protection feature which will shut off the power to the load if the temperature of the device exceeds a certain threshold. This helps keep the connected load from overheating or suffering from a short.

In addition to its internal protections, the SL22 2007-A Inrush Current Limiter also has a variety of user configurable settings. The user is able to set the maximum current limit, as well as the over temperature shut off threshold. Additionally, the user can choose between three different types of reset functions: reset temporary, reset with push button, and reset without push button. These settings allow the user to tailor the device to their particular application needs.

In conclusion, the SL22 2007-A Inrush Current Limiter is a high performance device, designed for use in applications with narrow line voltage ranges such as DC/DC converters. It utilizes a simple bridging circuit to limit the inrush current and features several internal and user configurable protection measures. This makes it an ideal choice for use in demanding applications that require reliable and consistent power.

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