NTPA7160LBMB0

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Inrush current limiters (ICL) are components which safely limit the inrush current found in many electrical devices. By limiting the initial current when the device is powered on, the life of the device is extended and further damage or destruction is avoided. The NTPA7160LBMB0 is a typical example of such a device, and will be discussed in detail here in terms of its application field and working principle.

Application Field

The NTPA7160LBMB0 inrush current limiter is used primarily in medical imaging equipment such as CAT scanners, MRI scanners, and endoscopes. It is also used in a variety of other devices, including industrial and manufacturing equipment, security systems, and hazardous/volatile environment monitoring systems. It is an ideal inrush current limiter due to its high current rating, relatively low voltage output, and short rise time.

Working Principle

The NTPA7160LBMB0 works by limiting the current during the initial turn-on of the device. It limits the current by reducing the current path and increasing the impedance. This is accomplished by using a MOSFET switch which is normally held open, but which is rapidly closed when the device is powered on. This effectively reduces the current flow and limits the amount of current that can pass through the circuit.

Once the current is limited, the voltage across the MOSFET increases. This higher voltage triggers an active current limiting circuit, which in turn limits the amount of current which can pass through, thus reducing the risk of damage or destruction of the device. The current limit is maintained until the device is powered off, at which point the MOSFET switch is opened and the voltage is reduced to its normal level.

Conclusion

The NTPA7160LBMB0 is a robust and reliable inrush current limiter, ideal for use in medical imaging equipment. By limiting the current and voltage during the device turn-on process, the device is protected from potential damage or destruction. The NTPA7160LBMB0 is a highly reliable and cost-effective solution to inrush current limitation, suitable for a wide range of applications.

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