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PMIC - Gate Drivers: TC4424VMF713 application field and working principle

The TC4424VMF713 is an integrated high and low side Siemens N-Channel MOSFET driver for high side load switching and DC/DC switching converters. It is generally used in portable devices, such as phones and laptops. It is part of the Taperpower line of n-Channel gate drivers. This gate driver has a wide operating voltage range from 4V to 20V and an adjustable frequency range from 0.5MHz to 4MHz.

The TC4424VMF713 gate driver is a highly integrated dual driver integrated circuit that can drive high side/low side N-Channel MOSFETs in multiple topologies. It has integrated HV-DMOS transistors with low RDS(ON) and fast switching speed. The high-side driver uses a control voltage-boosted bootstrap supply to provide isolation between the upper and the lower MOSFETs and to charge the bootstrap capacitor, allowing a high-side output within the supply range of the IC.

The TC4424VMF713 is a versatile, low-cost and efficient driver which has a variety of applications. It can be used in DC-DC converters, flyback converters, and in motor control/PWM driver applications. It is also suitable for many automotive, industrial and small-format power supplies. The ability of the TC4424VMF713 to switch loads safely and quickly makes it a great choice for applications that require high performance and reliability.

The TC4424VMF713 operates in one of two main modes; direct drive or peak current limiting. In the direct drive mode, the TC4424VMF713 will drive high side and low side MOSFETs in a complementary fashion, providing both speed and current into the load. In the peak current limiting mode, the TC4424VMF713 will limit the current drawn by the MOSFETs, preventing over-current and potentially dangerous fault conditions. The current limit value is adjustable via external components.

The TC4424VMF713 is specifically designed to protect the load while operating in a wide voltage range. The circuit will detect undervoltage conditions and actively shut down both high and low side MOSFETs until the voltage rises again. This will prevent any potential fault condition and protect the load from being damaged.

In summary, the TC4424VMF713 is an efficient, cost-effective and versatile gate driver with a wide range of applications. It has onboard protection features, a wide operating voltage range, and fast switching speeds. This driver is suitable for use in a range of different DC-DC, motor control and small-format power supplies. It is an ideal choice for applications that require high performance and reliability.

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