UC3714DG4

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The UC3714DG4 is a gate driver IC designed mainly for use in AC/DC power converters. It is an IC constructed on a monolithic substrate by using advanced Gate Driver technology, and it provides an efficient solution to driving power transistor gates in power supplies, DC-DC converters and other power conversion applications. This IC offers precise and versatile gate control, programmable rise and fall times, fault protection and additional functions such as MOSFET deadtime control and precise current level control.

The UC3714DG4 includes two output stages, each equipped with a N-channel MOSFET driver, and each output stage is capable of producing up to 5.5A peak current. This configuration allows for parallel operation of two MOSFETs, which provides higher power output. The UC3714DG4 is designed to minimize power losses associated with the gate drive circuitry and maximize efficiency in power conversion applications. The operating temperature range is -40°C to +125°C, and the device is available in a standard SOIC-16 package.

The UC3714DG4 is divided into three functional blocks: the oscillator, the control logic, and the drivers. The oscillator sets the switching frequency of the device, which can be programmed via a resistor and capacitor connected to the OSC pins. The control logic block provides the interface between the circuit inputs and the output stages. This block provides various functions such as deadtime control, soft start, fault protection, and additional features to ensure the stability of the device. The drivers section is responsible for driving the MOSFET gate to desired voltage levels by providing appropriate bipolar drive signals. The peak drive current for each output stage can be programmed by connecting resistors between the PGR and SHDN pins.

The UC3714DG4 is ideal for AC/DC power converters such as DC-DC converters, motor control, inverters and other power conversion applications. Its wide operating temperature range and advanced gate drive technology makes it an efficient solution for controlling power switching devices. It provides all the necessary features to ensure smooth transition, stability and reliability in operation. With this device, designers can easily reduce power losses associated with MOSFET gate drive and maximize the efficiency of the power converter.

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