FSUSB30BQX Integrated Circuits (ICs)

On-State Resistance (Max):	10 Ohm
Base Part Number:	FSUSB30
Supplier Device Package:	14-DQFN (3x2.5)
Package / Case:	14-WFQFN Exposed Pad
Operating Temperature:	-40°C ~ 85°C (TA)
Features:	Break-Before-Make, USB 2.0
-3db Bandwidth:	720MHz
Voltage - Supply, Dual (V±):	--
Voltage - Supply, Single (V+):	3 V ~ 4.3 V
Series:	--
Number of Channels:	1
Switch Circuit:	DPDT
Multiplexer/Demultiplexer Circuit:	--
Applications:	USB
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction:

The FSUSB30BQX is an analog switch developed by Fairchild Semiconductor, specifically designed for RF and general switch applications. It features a wide operating range from -1.8 V to VCC + 1.3 V. With a wide variety of features, the FSUSB30BQX is the ideal choice for a wide range of applications, especially in the area of ​​interface-based analog switches. This article will discuss the application field and working principle of the FSUSB30BQX.

Application Field:

The FSUSB30BQX is a versatile analog switch that is suitable for a wide range of applications. For example, it can be used as an audio switch, a reed relay replacement, an automotive switch, and even a DC-to-DC switch. In addition, the FSUSB30BQX is also suitable for interface applications, especially the ones requiring specialized solutions.In addition, the FSUSB30BQX is also well suited for video and imaging applications, including video switching for NTSC and PAL systems. It also allows for simultaneous switching of multiple signals, meaning fewer single point errors and reduced interference.Finally, the FSUSB30BQX is ideal for use as a power switch in automotive, industrial, and commercial applications. It has low on-resistance and high switching capacitance, meaning it can switch loads quickly and with minimal power loss.

Working Principle:

The FSUSB30BQX is an analog switch that works by passing a signal through an integrated switch array. The switch array delivers the user-selected signal to the output via the selectable channels. This means that the switcher can handle multiple inputs, with several different channels available.When the FSUSB30BQX is used as a power switch, it functions by closing the power switch contacts when a signal is applied to the control input. The circuit operates on a two-wire principle, with one wire conducting the power and the other wire controlling the power switch.The FSUSB30BQX can also be used as a time-delayed switch. In this mode, the switch opens after a certain time interval. This means that, depending on the exact requirements, a delay can be applied before the power switch opens. This feature is especially useful in applications where multiple signals must be switched simultaneously.

Conclusion:

The FSUSB30BQX is an ideal solution for a wide range of applications, especially those in the interface-based analog switch category. It can be used in RF, audio switching, imaging, and automotive applications, as well as for time-delayed switching. It features low on-resistance and high switching capacitance, making it highly effective for power switching as well.

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