The maximum voltage rating of the bootstrap capacitor is typically 15V to 20V, but it's recommended to use a capacitor with a voltage rating of at least 25V to ensure reliable operation.
To ensure proper bootstrap capacitor charging, make sure the capacitor is connected between the VB pin and the VCC pin, and the resistance between the VB pin and the high-side FET's source pin is minimized. Also, ensure that the capacitor value is sufficient to maintain the bootstrap voltage during the high-side FET's on-time.
The recommended dead-time between the high-side and low-side FETs is typically around 100ns to 200ns, but it may vary depending on the specific application and FET characteristics. A longer dead-time can help prevent shoot-through currents, but it may also increase switching losses.
The IR2117SPBF has a built-in undervoltage lockout (UVLO) feature that disables the device when the VCC voltage falls below a certain threshold (typically around 10V). To handle UVLO, ensure that the VCC voltage is stable and within the recommended operating range. You can also use an external voltage supervisor or reset circuit to monitor the VCC voltage and reset the device if necessary.
The maximum allowable current through the SD pin is typically around 10mA to 20mA. Exceeding this current limit can cause damage to the device or affect its reliability.
IR2117SPBF datasheet
by International Rectifier
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