UC3901QTR

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The UC3901QTR is a series of gate drivers provided by Texas Instruments. Gate drivers are primarily used in power management applications as they can efficiently increase or decrease the current running through an inductive load such as a motor or solenoid. The UC3901QTR series offers a fast and simple solution for controlling power switching in applications requiring accurate and reliable power control and reliable overcurrent protection.

The UC3901QTR is a power management integrated circuit (PMIC) specifically designed for driving power semiconductor devices such as MOSFETs (metal oxide semiconductor field-effect transistors) and IGBTs (insulated gate bipolar transistors). It combines a gate driver, overcurrent protection and a gate-to-drain protection circuit into one energy efficient component. The UC3901QTR gate driver is available in a through-hole package and is protected against overcurrent and overvoltage conditions.

The UC3901QTR is a specialized PMIC that offers a wide range of features designed to address the specific needs of power management applications. It offers a wide operating range of -40°C to +85°C, and it is designed with a robust power supply rejection ratio (PSRR) of up to 70 dB at 1 kHz. It also provides protection features such as overvoltage protection, undervoltage detection, inrush current limiting, and pre-charge and de-charge control. Furthermore, its built-in gate-to-drain protection device offers an added level of protection for power semiconductor devices against accidental overcurrent and overvoltage events.

The UC3901QTR is typically used in power management applications such as motor drives, solar inverters and power supplies. It is also suitable for applications where its power supply rejection ratio is beneficial, such as lighting control systems, clock generators, and automotive systems. In addition, it can be used with a wide range of power management circuits, including buck and boost converters, linear regulators and DC-DC converters.

The UC3901QTR is capable of efficiently driving power semiconductor devices up to a maximum of 10 A peak current at an DC supply voltage of 10 V. Due to its low current consumption of only 5 mA in the disabled state and its low power dissipation, it can also be used in battery powered applications. The UC3901QTR can be either used as a manually operated switch or in an automated way, with the gate driver being triggered from a logic signal from an MCU (microcontroller unit).

The UC3901QTR is an ideal solution for controlling power switching in power management applications where accurate and reliable power control and overcurrent protection are required. Its robust protection features, wide range of features and low power dissipation make it suitable for a wide range of power management applications, including motor drives, solar inverters, power supplies, lighting control systems and automotive systems.

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