IRS210614SPBF

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Power Management Integrated Circuits (PMICs) are a type of integrated circuit specifically designed to reduce power consumption and optimize the performance of electronic devices. Gate Drivers are one category of PMICs dedicated to controlling the flow of power to a transistors gate often used for us in switching applications. The IRS210614SPBF is a gate driver IC manufactured by International Rectifier (IR), and is designed for applications that require the three-level topology.

The IRS210614SPBF features a 37V operating voltage, peak output current of 4A (sinking and sourcing) and a dead time of up to 1.2us. The device can be controlled either through its HIN/ LIN or PWM and EN pins, giving it a high level of flexibility in its applications. In addition, it has several other features such as over-voltage and under-voltage protection, transient clamp and an adjustable dead time.

The IRS210614SPBF gate driver IC uses a three-level topology to reduce power losses and minimize switching losses when driving power devices. This three-level topology consists of a pair of high-side switches and a combined low-side switch and a shunt regulator in series. The high-side switches are connected to the power MOSFETs gate and the low-side switch is connected in series to the shunt regulator at one end, with the other end being connected to the gate of the second MOSFET. To control this topology, the gate driver IC uses the PWM input to generate a suitable gate voltage to activate or de-activate the MOSFETs.

The function of the shunt regulator is two-fold; firstly, it allows the gate of the second MOSFET to be biased to its necessary voltage relative to the common source terminal and secondly, it absorbs the energy and removes the Miller charge in order to prevent the ‘cross-conduction’ of the power devices. This improves efficiency and reduces power losses. In addition, the device also has an adjustable dead time parameter, which can be used to control the switching speed of the power devices.

The IRS210614SPBF gate driver IC is ideal for a range of applications that require the reduction of switch-losses, such as high-power motor drives, active power factor correction, three-level DC/DC or AC/DC converters, DC-DC switch-mode power supplies and resonant converters.

In summary, the IRS210614SPBF gate driver IC is a device designed for use in three-level topology applications that require the reduction of switch-loss. The device features a 37V operating voltage, peak output current of 4A (sinking and sourcing) and adjustable dead time parameter of up to 1.2us. It offers over-voltage and under-voltage protection, transient clamp and the ability to be controlled through its HIN/ LIN or PWM and EN pins, making it a versatile and reliable component. The device is suitable for use in a range of high-power applications such as motor drives, active power factor correction, and DC/DC or AC/DC converters.

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