Description:Built-in Shoot-Through Prevention Logic ; Floating Channel for Bootstrap Operation to +600V ; Output In-Phase with Input Signal ; 3.3V and 5V Input Logic Compatible ; Built-in Bi-Directional Fault Function ; Extended Allowable Negative VS Swing to -9.8V for Signal Propagation at VDD= VBS =15V ; Built-in Common Mode dv/dt Noise Canceling Circuit ; Typically 250mA/500mA Sourcing/Sinking Current Driving Capability for Both Channels ; Matched Propagation Delay Below 50ns ; Built-in Soft-Off Function ; Built-in
A good PCB layout for the FAN7384MX involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the high-current paths. It's also recommended to use a shielded inductor and to keep the switching node (SW) away from sensitive analog circuits.
The inductor value depends on the input voltage, output voltage, and switching frequency. A good starting point is to use the inductor value calculation formula provided in the datasheet. Additionally, consider the inductor's saturation current, DC resistance, and core material when selecting an inductor.
The FAN7384MX is rated for operation from -40°C to 125°C ambient temperature. However, the junction temperature (TJ) should not exceed 150°C. Ensure proper thermal design and heat sinking to maintain a safe operating temperature.
Yes, the FAN7384MX can be used in a synchronous rectification configuration. This can improve efficiency by reducing the voltage drop across the rectifier. However, ensure that the synchronous rectifier is properly sized and driven to avoid shoot-through currents and other issues.
To troubleshoot issues with the FAN7384MX, start by verifying the PCB layout, component values, and soldering quality. Check for proper decoupling, input/output filtering, and noise reduction techniques. Use an oscilloscope to observe the switching node, output voltage, and input voltage waveforms to identify any anomalies.
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FAN7384MX Overview
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