FT838RNA-RT Integrated Circuits (ICs)

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FT838RNA-RT is a multi-functional, integrated offline switcher IC (Integrated Circuit). It consists of two AC to DC power converters, a low-side N-channel MOSFET, two linear regulators, two MOSFET drivers, two error amplifiers and a wide-range boost controller. This device can be used to provide either a constant voltage or current output, depending on the application.

FT838RNA-RT can handle a wide input voltage range, from 3.3V up to 18V. It also features a low quiescent current of 10μA and very low standby power consumption of only 25μW. Furthermore, this device has a maximum output current of 500mA, and a low-side MOSFET gate resistor of just 0.5Ω. In addition, the output voltage and current accuracy of this device is also Capao to match, and attain, a higher system performance and sustainable power supply stability.

The working principle of the FT838RNA-RT is that when the input voltage is below a predefined level, the MOSFET driver switches off the low-side MOSFET, block the power path, and disconnect the output from the input. This effectively shuts down the output. However, when the input voltage rises above the predefined level, the MOSFET driver will trigger, turning on the low-side MOSFET and enabling a power path from the input to the output. This will provide a DC voltage/current to the output.

There are a variety of applications for the FT838RNA-RT in AC/DC converters and offline switchers. These include LED drivers, white goods, small fans and other low power, non-isolated switching applications. In LED drivers, the FT838RNA-RT is capable of providing programmable constant current output. In addition, when used in white goods, this IC can reduce power consumption by monitoring and controlling the operation of always-on electronics. It can also be employed in small fans and other low power applications, where it is capable of controlling the speed of the fan by regulating the input voltage to the fan.

In conclusion, the FT838RNA-RT is an integrated, multi-functional offline switcher IC, which can be used in a variety of AC/DC converters and offline switcher applications. This device features a low quiescent current, low standby power consumption, and a high-accuracy output voltage/current. It can be used to provide either a constant voltage or constant current output, depending on the application. As such, this IC is an ideal solution for energy-efficient and reliable AC/DC pre-regulators and offline switchers.

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