TC4423AVPA

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PMIC - Gate Drivers such as TC4423AVPA offer useful solutions for applications such as motor drives, half-bridge drivers, DC-DC converters and other electronic applications that default to the need for a fast switching between full-on and full-off conditions. The TC4423AVPA is a high current dual MOSFET and IGBT driver, with an input voltage of up to 40 V, a peak sink current of 2.8 A, and a low on resistance of <73 mΩ. This higher switch speed enables systems to operate faster, and increase their efficiency.

Application Field

The TC4423AVPA can be applied in various fields including motor control applications, such as BLDC (brushless DC) motor drivers, scanners, servo drives and in industrial applications such as welding and medical equipment. It is also suitable for applications requiring two independent outputs such as OLED, LED and other display modules that use full-on and full-off control.

Working Principle

The TC4423AVPA is designed for high-speed switching, allowing end-user systems to switch quickly between full-on and full-off control functions. This reduces power loss due to inductive spikes, and helps system efficiency. The gate driver also operates efficiently by employing a Under-Voltage Lock Out (UVLO) circuit that detects when the voltage across its input falls below a certain threshold and will shut off the outputs. This is to prevent the outputs from switching in a low voltage environment.

The TC4423AVPA also features a temperature sensing circuit that uses a remote temperature sensor to measure and impact the gate driver\'s performance. This allows the gate driver to adjust its performance, such as switching speed and slew rate, depending on the conditions such as the temperature in the environment. This helps prevent excessive current from flowing through the drain, helping to reduce the risk of overheating and other related problems.

In addition, the TC4423AVPA contains circuit protection features that protect the device from damage due to spikes in power. This includes a current limiting and fold-back circuit that reduces current if the load exceeds its limit. The gate driver also includes an overvoltage protection circuit that shuts off the outputs if the voltage on the output gets too high. Finally, the gate driver also includes an anti-Jitter and shoot-through prevention circuit that prevents false triggering or interference that can occur due to noise or glitches on the power supply.

The TC4423AVPA is also equipped with an enable input that lets the user enable or disable the output. This offers extra flexibility and is great for applications where the system needs to be switched on and off quickly and reliably. The TC4423AVPA is a versatile and reliable device that is suitable for many applications that require high speed switching and circuit protection.

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