Description:Programmable Turn-on Delay-Time Control (Dead-Time); Internal 400nsec Minimum Dead-Time at RDT=20KO ; Built-in UVLO Functions for Both Channels ; High-Side Output in Phase of IN Input Signal ; Floating Channel for Bootstrap Operation to +600V ; Built-in Common-Mode dv/dt Noise Canceling Circuit ; Typically 350mA/650mA Sourcing/Sinking Current Driving Capability for Both Channels ; Extended Allowable Negative VS Swing to -9.8V for Signal Propagation at VDD<=VBS=15V
A good PCB layout for the FAN73832MX 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.
When choosing an inductor for the FAN73832MX, consider the inductor's saturation current, DC resistance, and core material. A good starting point is to select an inductor with a saturation current rating of at least 1.5 times the maximum output current, and a DC resistance of less than 100 mΩ. Ferrite or iron powder cores are good options.
The maximum ambient temperature for the FAN73832MX is 85°C, but it's recommended to derate the device's performance at high temperatures to ensure reliable operation. Consult the datasheet for thermal derating curves.
Yes, the FAN73832MX can be used in a synchronous rectification configuration, which can improve efficiency and reduce heat generation. However, this requires careful design and layout to ensure proper operation and minimize electromagnetic interference (EMI).
To troubleshoot issues with the FAN73832MX, start by checking the PCB layout and component selection. Ensure that the input and output capacitors are properly sized and placed, and that the inductor is suitable for the application. Use an oscilloscope to monitor the switching node (SW) and output voltage, and check for signs of oscillation or instability. Consult the datasheet and application notes for guidance on troubleshooting and design optimization.
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FAN73832MX Overview
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