UC2706DW

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UC2706DW Application Field and Working Principle

The UC2706DW gate driver is a high voltage half-bridge MOSFET driver specifically designed for PMIC applications. It is used to drive two N-channel MOSFETs, increasing the power efficiency and driving capacity of systems that require high field-effect mobility. This driver is designed to directly drive two N-channel MOSFETs, allowing for the generation of class D outputs for applications up to 200V. The low switching frequency allows for reduced power losses in the MOSFETs during switching. The device is capable of driving current loads up to 16A.

The driver\'s overall working principle is to use high-voltage ICs to provide the necessary control and protection of the gate while keeping the gate\'s low voltage active. The UC2706DW driver allows for the activation of the MOSFETs with the desired amount of gate charge and the output current can be controlled linearly with the desired PWM duty cycle.The gate driver needs to be supplied with an adequate power supply, which can either be a separate voltage source or can be derived from the same voltage source as the gate itself. The commanded duty-cycle of the MOSFETs is applied to the pins of the IC and is immediately pulled to ground with a 0V output voltage. The commanded duty-cycle is used to control the current flowing between the gates and the source.

The UC2706DW driver is equipped with a slew-rate control feature, which allows for precise control of the gate charge and prevents high-frequency noise. The integrated high-level overvoltage protection ensures the gate does not receive an excessive voltage, which can damage the gate switch. This protection feature also prevents shorting in the gate voltage and will effectively protect any system from overvoltage conditions.

This driver is also equipped with a number of features that make it suitable for use as a PMIC gate driver. These include fast shutdown and input voltage protection, low-power dissipation, and high-efficiency operation. Additionally, the UC2706DW driver has a low start-up current of under 2mA which makes it ideal for applications requiring low start-up currents. The driver also offers thermal protection and can survive extended over-temperature conditions.

The UC2706DW is a versatile, high-performance MOSFET driver that is suitable for all types of power management applications. The combination of high- voltage protection, fast switching, low power dissipation and high efficiency operation makes it ideal for today’s high-performance systems. The slew-rate control feature and integrated overvoltage protection make it a reliable solution for all types of applications.

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