TC4425VPA

PMIC - Gate Drivers is a type of switching and linear integrated circuit controllers. They are used to control and drive the speed, current and voltage of power switches. The TC4425VPA Gate Driver is a monolithic high and low side MOSFET and IGBT driver. It is designed to drive high power N-channel power MOSFET or IGBT devices.

Application Field

The TC4425VPA Gate Driver is ideally suited for use in a wide variety of applications. It can be used as a power switch drive, power amplifier, and pulse width modulator. It can also be used in high power DC-DC, AC-DC and AC-AC converters, power converters and electronic ballast systems, or any other application that requires the reliable control of a MOSFET or IGBT switch.

Working Principle

The TC4425VPA Gate Driver consists of two independent gate drivers that can drive N-channel MOSFETs or IGBTs, respectively. Each driver includes a bootstrap circuit, a high-current drive output, and a low-impedance control input. Each output stage can provide up to 3.8A peak current to the gate of a MOSFET or IGBT. The maximum operating voltage is 100 Volts, and the typical rise/fall times are 12ns/15ns.

The TC4425VPA features overvoltage protection, which allows it to withstand up to 500V without damage. It has a low power Schottky diode, which helps avoid sub-harmonic oscillations when used in PWM applications. The device also features protection against input current spikes and shoot through.

In addition, the TC4425VPA features a disable input, which can be used to control the power switch. The device also features a current limit switch which monitors the load current. If the load current exceeds the limit, the device will automatically shut down, protecting the power switch from potential damage.

The TC4425VPA Gate Driver is an effective and reliable solution for a wide variety of power switch applications. Its high performance, overvoltage protection, and low power Schottky diode make it well-suited for high power applications, such as active power factor correction, power factor correction, AC/DC converters, motor control, and other high power applications.