The IR4427STR is an IC component that belongs to the MOSFET gate drive family. It is specifically designed for high-speed switching applications and offers excellent performance in driving MOSFETs or IGBTs. The IC is built using advanced CMOS technology, which ensures low power consumption, high noise immunity, and fast switching speed.
One of the key features of the IR4427STR is its dual output design, which allows it to drive two independent channels. This feature makes it suitable for driving both high-side and low-side MOSFETs in a half-bridge configuration. Additionally, the IC offers a wide operating voltage range, typically from 5V to 20V, making it compatible with a variety of power supply options.
The IR4427STR comes with built-in protections, such as under-voltage lockout (UVLO) and over-current shutdown (OCD), to ensure safe operation and prevent damage to the MOSFETs. The UVLO feature disables the outputs when the supply voltage drops below a certain threshold, preventing improper switching under insufficient power conditions. The OCD function is triggered in case of excessive current flow, providing protection against short circuits or other over-current events.
Furthermore, the IC incorporates a programmable dead-time control mechanism, which allows users to adjust the time delay between the turn-off of one channel and the turn-on of the other channel
