ISL6620AIRZ

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The ISL6620AIRZ is a gate driver built specifically for high power MOSFET and IGBT power applications designed by Renesas. Featuring internal gate drive circuits, a wide range of gate drive current and low quiescent current, the ISL6620AIRZ is a powerful gate driver for power electronic systems.

Application Field

By employing advanced CMOS processes, the ISL6620AIRZ delivers the maximum gate drive current of up to 12A when driving large size MOSFETs and IGBTs to allow high-speed switching. This makes it an ideal solution for power converters, motor control and LED lighting applications where high power switches are used. It also comes with a PFC pre-driver feature which eliminates the need for an external PFC pre-driver in most applications. Additionally, the device is well-suited for use in battery powered devices, featuring a quiescent current of only 0.1µA and a typical turn-on delay of 30ns.

Working Principle

The ISL6620AIRZ features internal gate drive circuits, one for each of two output stages, which provide the maximum gate drive current of up to 12A and a wide range of gate drive voltages. When the high and low level drive input signals are applied, one of the outputs is enabled, with the other remaining in a high impedance state. The user can select the gate drive current level with an external resistor, providing adjustable gate drive current up to 12A.

To ensure safe operation, the ISL6620AIRZ provides an active over-current protection circuit and a thermal protection circuit with an integrated temperature sensor. The overcurrent protection is enabled by supplying a current at the external pin OC and setting the temperature limit, while the thermal protection is enabled by setting the temperature limit.

Conclusion

The ISL6620AIRZ is a powerful gate driver specifically designed to drive high power MOSFETs and IGBTs. With a wide range of gate drive current and low quiescent current, it is well-suited for power converters, motor control and LED lighting applications. Additionally, it features a PFC pre-driver feature, an active over-current protection circuit, and a thermal protection circuit with an integrated temperature sensor for reliable operation.

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