FT839ND1-RT

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Power management integrated circuit (PMIC) is a type of integrated circuit that combines multiple power management functions such as voltage regulation, power sequencing, and power sequencing into a single integrated circuit (IC). PMICs are used to provide electrical power to a wide range of embedded systems, including cell phones and other portable electronics, servers and desktop computers, home appliances and automotive products. The FT839ND1-RT is a monolithic integrated circuit (MOSFET) based switching regulator in the PMIC that offers a simple, cost-effective and solid-state solution for basic AC-DC and DC-DC conversion applications. The FT839ND1-RT is a single-channel offline switcher and is available in multiple packages.The FT839ND1-RT is designed to be used as an offline power supply for a variety of low-power electronic applications. It has a wide input voltage range and can handle a wide input current up to 50mA. The IC has an integrated MOSFET driver, which allows for easy power sequencing. The power rail voltage can be adjusted from 0V to 10V with a minimum pulse width of 0.5us. It also offers a low start-up power consumption, high efficiency, and a low external component count. The IC also features a built-in current limiting circuit and is capable of providing constant current up to 1A.The FT839ND1-RT can be used in a variety of applications such as LED lighting, automotive, LED driver, portable equipment, industrial equipment, household appliances, and telecom/networking applications. The IC features programmable frequency and an adjustable output voltage. It also has a built-in protection circuit, which helps protect against overvoltage, overcurrent, and short-circuit conditions. The FT839ND1-RT is designed to operate at a temperature range of –40°C to +85°C.In terms of operation, the FT839ND1-RT performs A-mode and B-mode switching with a step-down topology. The main purpose of this topology is to efficiently drop a higher DC input voltage to a lower DC voltage, with a high frequency switching. The FT839ND1-RT will produce up to 1A of output current.For the A-mode switching, the FT839ND1-RT will regulate the output voltage by turning the MOSFET on and off at the switching frequency. During the B-mode switching, the IC will regulate the output voltage by sensing the current running through the MOSFET, or “bump”. When the MOSFET is operating in the bump mode, the IC will detect the voltage level and adjust the MOSFET duty cycle and current limit accordingly.The FT839ND1-RT is a great choice for a variety of off-line, low power applications due to its integrated MOSFET driver, wide input voltage range, low start-up power consumption, high efficiency, and low external component count. The IC is designed to offer reliable and cost-effective solutions for basic AC-DC and DC-DC conversion applications. It is an ideal choice for applications needing a reliable and efficient solution for power conversion.

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