UCC27423DGNR

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PMIC - Gate Drivers are a type of commonly used integrated circuits in power supply applications. The UCC27423DGNR is a dual-channel gate driver, developed by Texas Instruments, that provides low-side and high-side drivers for both P and N-channel power MOSFETs and IGBTs. This device has a wide voltage range, high current handling, and low-noise operation. As such, it is widely used in a variety of different power supply applications, from low voltage to high voltage, and from AC and DC power supplies.

Applications of the UCC27423DGNR

The UCC27423DGNR offers one of the most efficient gate driving solutions for many power supply applications, including:

• AC and DC motor control and protection circuits.
• DC-DC converters.
• Power over Ethernet (PoE) converters.
• LED and fluorescent lamp drivers.
• SMPS converters.
• Battery chargers.
• Micro-inverters.
• Electronic lamp power supplies.
• Power distribution Units (PDUs).

Working Principle

The UCC27423DGNR gate driver operates on the principle of bipolar curves. A bipolar curve is a type of voltage-controlled voltage source, where the output voltage is proportional to the magnitude and polarity of the input voltage. When an input voltage is applied to the gate driver, the output switches between two stable levels depending on the polarity of the voltage. This switching of the output voltage causes the power MOSFETs or IGBTs to turn on or off, making the gate driver a critical device in controlling the gate voltage of the power semiconductor.

The UCC27423DGNR gate driver is designed to provide a low-power solution for controlling power transistors, with integrated protection circuits to protect against short circuits, over-voltage or over-current conditions. The UCC27423DGNR also features an adjustable under-voltage lockout to ensure that the applied gate voltages remain within a safe operating range.

In addition, the UCC27423DGNR features adjustable dead-time and slew-rate control. This ensures that the power transistor can be turned on or off in a controlled manner, thereby reducing switching transients, improving reliability and efficiency. The UCC27423DGNR also features adjustable slew-rate control to ensure that the power transistors can be driven with a soft-start function, minimizing inrush currents and protecting the power supply from overloads.

The UCC27423DGNR is designed to provide maximum flexibility to support a wide range of applications. This device has a wide operating temperature range (-40°C to 125°C) and wide operating voltage range (up to 6.5V) to allow the user to tailor the device to the specific application. Additionally, the UCC27423DGNR is available in a space-saving 4-pin SOP package, making it ideal for space-sensitive applications.

Conclusion

The UCC27423DGNR is a dual-channel gate driver from Texas Instruments, designed for use in a wide range of power supply applications from low voltage to high voltage. This device offers low power consumption, high current handling capabilities and adjustable dead-time and slew-rate control. The UCC27423DGNR is well suited for use in applications such as AC and DC motor control, DC-DC converters, PoE converters, LED and fluorescent lamp drivers and SMPS converters, among others. The UCC27423DGNR is available in a 4-pin SOP package, making it suitable for space-sensitive applications.

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