The maximum operating frequency of the IR21091STRPBF is 1 MHz, but it can be operated at higher frequencies with reduced performance.
To ensure the bootstrap capacitor is properly charged, make sure to follow the recommended bootstrap capacitor value and charging resistor value, and ensure the high-side driver is enabled before the low-side driver.
The SD (Shutdown) pin is used to disable the device and reduce power consumption. To use it, connect the SD pin to a logic low signal to shut down the device, and connect it to a logic high signal to enable the device.
The dead time between the high-side and low-side drivers can be adjusted using the DT (Dead Time) pin. A longer dead time can be achieved by connecting a capacitor between the DT pin and ground, while a shorter dead time can be achieved by connecting a resistor between the DT pin and VCC.
For optimal performance and thermal management, it is recommended to follow a compact layout with minimal trace lengths, use a thermal pad on the underside of the package, and ensure good airflow around the device.
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IR21091STRPBF Overview
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