UCC27201ADR

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Texas Instruments UCC27201ADR gate drivers are produced in the company’s seven-pin VQFN package, designed to effectively drive MOSFETs, IGBTs and other power devices. The devices feature low gate charge, and high current and voltage ratings. The integrated gate level current limiting and over-voltage protection functions protect the MOSFET or IGBT from damage due to short-circuit and overload conditions.

The UCC27201ADR is a low-voltage gate driver, integrated into a small form factor for space-constrained applications. The device is based on a high-side and low-side totem-pole architecture, with output peak current of 200mA. It also features a slew rate of 0.5V/ns, making it suitable for high-speed power semiconductor switching.

The UCC27201ADR features a wide operating voltage range of 4.75V to 18V and a low internal power dissipation, with a typical turn-on delay of 500ns and a turn-off delay of 800ns. The device is designed to handle high peak current, hot switching up to 500A, and can drive both N-channel and P-channel power devices.

The UCC27201ADR gate driver is suitable for a variety of power management applications, such as motor control and AC/DC power supplies. It can be used as a single-channel gate driver, and is also expandable to two-channel gate drivers with an output in parallel connection. It is also applicable to LED lighting control and solar applications.

The UCC27201ADR gate driver works by providing a low impedance path for the driven Gate of the power switch to turn on. The device contains an output transistor known as an MOS-gate that acts as a switch by allowing a small charge to flow from the Gate to the Source Node depending on the current level of the Gate. When the Gate voltage is applied, a voltage is induced across the Gate resistance, which gives an indication of the level of current being passed through the Gate. This current is then used to turn on the power switch, either a MOSFET or IGBT. The device has a propagation delay of 500ns, which enables it to latch and drive the power switches with great speed.

The UCC27201ADR is designed to provide protection against over-voltage and over-current. The device features an overvoltage protection circuit that prevents the power switch from being damaged due to a sudden increase in the Gate voltage. It also has an integrated current limiting circuit that limits the maximum current that can flow through the Gate. This protects the power switch against damage caused by over-current.

The UCC27201ADR gate drivers offer reliable control of power semiconductors, allowing for improved device performance and greater protection from damage caused by over-voltage or over-current conditions. With its wide operating voltage range, low internal power dissipation, low gate charge, and high current and voltage ratings, the device is suitable for a variety of power management applications, offering improved temperature stability and reliability.

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