PC923XI

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Isolators - Gate Drivers encompass fast, high voltage isolation technology that enables the circulation of digital signals between a higher-powered control system and power components without interaction between the power section of the system and the digital control section. They enable communication by optical isolation and have become obligatory in high power applications where safety is an important issue.

The PC923XI fits within the fold of Isolators - Gate Drivers, providing applications for high current switching in the automotive industry, renewable energy sector, industrial automation, motor control, and more. PC923XI’s features make it a reliable solution for switching applications as it provides optically-isolated TTL input with \'open drain\' output configuration, and both over current and over temperature protection.

The working principle of the PC923XI involves the drive voltage from the system being output through an optical isolation barrier. The current through the gate is regulated to its set current levels, while the output stage is designed to handle high power loads with its open-drain configuration. Unlike the traditional open-emitter approach, in the configuration of the PC923XI, the output is current-limited and shut off by the internal comparator when the output current reaches a threshold.

The output drives an N-channel MOSFET that is equipped with three features: over-current protection, thermal shutdown protection, and UVLO (Under Voltage Lock Out) that serves to protect the device from voltage surges upon start up. In order to support various switching applications, the PC923XI includes a 2A external switch output with a PWM dimming control interface, so it can be easily implemented.

The PC923XI provides a great solution for high current switching applications. It serves as an essential component for motors, AC power switches, UPS, automotive switching applications, and domestic appliances. The added protection features make the PC923XI a great choice for applications requiring reliable and safe operation.

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