TC4420EMF

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The TC4420EMF belongs to the PMIC - Gate Drivers, and provides an efficient, low-power solution for driving and controlling power MOSFETs, IGBTs and other power devices. The TC4420EMF has a built-in high-voltage MOSFET, which simplifies the design of power converters and makes them more efficient.

The TC4420EMF is capable of driving up to 10A of output current into a 100mV drop and is capable of delivering a 25V turn-on voltage, making it suitable for driving various power transistors. The propagation delay time of less than 2,5ns allow fast switching operations and optimal system performance, while the low Rds(on) ensures low power loss. The chip also offers a full protection feature, which includes under-voltage, over-voltage and over temperature protection.

The TC4420EMF working principle is based on two N-channel MOSFETs that operate in a half bridge configuration. The two MOSFETs are connected in parallel and the body of each of them is connected to the chip’s power supply input. The gate of the lower MOSFET is controlled by the output of the chip, while the gate of the upper MOSFET is connected to the ground through a resistor. When the chip’s output is at a high logical level, the lower MOSFET gate is turned on, thus enabling the current to flow through the lower MOSFET. When the output of the chip is at a low logical level, the lower MOSFET gate is turned off, while the upper MOSFET gate is turned on, thus enabling the current to flow through the upper MOSFET.

The TC4420EMF application field ranges from general purpose power switches to automotive power supplies, lighting applications and other high power switching applications. The integrated features make it an ideal device for high-side and low-side gate drive applications. It is suitable for both power management and protection. Furthermore, it offers a wide range of applications in industrial equipment and battery management systems.

The TC4420EMF is a highly integrated device that offers performance, flexibility, and optimized power dissipation. It is designed to provide a simple and cost-effective solution to powering and controlling power devices. It is available in a space saving 8-pin SOIC package and is qualified for automotive grade applications.

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