IRS21853STRPBF

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The IRS21853STRPBF is a high-performance gate driver IC (GDI) designed for smart power modules (SPMs). It is a totally integrated solution for high-voltage applications, and it provides an integrated solution to control the switching of SPMs. This GDI can be utilized in both asynchronous and synchronous topologies, and is capable of supporting high-current switching applications up to 70A peak.

The IRS21853STRPBF is designed to provide all the necessary isolation, protection and drive circuitry, including built-in overvoltage protection, undervoltage protection, ESD protection, negative voltage protection and more.

It features an internal power supply, which is the primary source of power for the GDI and its slaves. The power supply can be boosted to provide sufficient internal voltage for external power stages. This GDI can be used for gate driver outputs ranging from 5A to 70A. It is fully reinforced against a wide range of EMI and ESD threats.

The IRS21853STRPBF has a wide range of features, including integrated soft-start and monitored input power, two internal voltage references for programming the gate driver outputs and slew rate control.

It offers programmable delayed turn-on and turn-off to slow down transient switching of SPMs in order to reduce switching losses and increase system efficiency. It also has six gate driver output channels with an independent differential gate driver capable of driving up to 70A peak current.

The gate driver output channels are configured with a circuitry that includes an output driver, an internal series resistor, and a driver pull-up/pull-down resistor. This configuration enables the GDI to provide sufficient current to properly drive both low and high-side power devices. The output driver circuit is protected against overcurrent through an on-board output level-shift resistor.

The GDI also has a timer circuitry that monitors the cycling of each output and provides accurate current monitoring and control. This feature prevents overtemperature from overcurrent limit by automatically disabling the output driver when the current limit is exceeded. It also offers a fault indicator output, which can be used for system-wide protection.

The IRS21853STRPBF is an ideal GDI for controlling high-voltage switching applications. Its comprehensive protection, powerful output drivers, and fully integrated functions make it a great choice for complex and demanding applications.

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