FAN3224TMX Integrated Circuits (ICs)

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PMIC - Gate Drivers refers to a category of power management solutions that provide gate drive signals to control power devices such as MOSFETs, IGBTs, thyristors, and relays. The FAN3224TMX is a high performance dual anodically isolated low side MOSFET driver designed with a typical propagation delay of 70ns. It is suitable for applications such as servers, storage, networking systems, and industrial motor drives.

The FAN3224TMX is powered by a 3V to 20V supply voltage range and operates in ambient temperatures from -40°C to 90°C. It features a regulated 500mA saturated low side drive current, 2500V minimum optical output isolation, and transient thermal overload protection. Additionally, it includes single chip fault protection to protect both the power switch and microcontroller from contamination due to shoot-through current.

The FAN3224TMX provides independent control for two low side power MOSFETs, enabling them to be turned on or off simultaneously. It also includes CMOS logic inputs for turning each set of low-side MOSFETs on and off independently. The inputs can be driven by 5V logic signals or by a gate driver with a performance of 8mA maximum drive current. The FAN3224TMX features an adjustable dead-time with a range of 60–140ns.

Thanks to the dual channel architecture, the FAN3224TMX offers several benefits. It enables the implementation of various power schemes such as single channel half-bridge or dual full bridges. This allows designers to switch very low RDS(on) MOSFETs with low gate capacitance at high frequencies by providing fast activation of the high side switches.

The FAN3224TMX is designed on a process that allows it to provide excellent thermal stability and reliability, enabling continuous operation and superior performance in high temperature applications. The high performance and low parts count of the FAN3224TMX allows designers to reduce the costs of their voltage regulator modules, power supplies, and motor drives.

In summary, the FAN3224TMX is a dual anodically isolated low side MOSFET driver. It provides up to 500mA of low side drive current and 2500V of optical output isolation, and includes single chip fault protection. The device was designed to support various power schemes such as single channel half-bridge or dual full bridges, and provide excellent thermal stability and low parts count to reduce cost in voltage regulator modules, power supplies, and motor drives.

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