Description:Extended Allowable Negative VS Swing to -9.8V for Signal Propagation at VBS=15V ; 3.3V and 5V Input Logic Compatible ; High-Side Output in Phase of IN Input Signal ; Floating Channel for Bootstrap Operation to +600V ; Internal 400ns Minimum Dead-Time; Built-in Common-Mode dv/dt Noise Canceling Circuit ; Built-in Shutdown Function ; Matched Propagation Delay for Both Channels ; Built-in UVLO Functions for Both Channels ; Typically 2.5A/2.5A Sourcing/Sinking Current Driving Capability
A good PCB layout for the FAN73932MX involves keeping the high-frequency switching nodes (e.g., SW node) away from sensitive analog nodes, using a solid ground plane, and minimizing trace lengths and loops. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Additionally, ensure that the input and output capacitors are of high quality and have low ESR. A minimum of 10uF input capacitance and 22uF output capacitance is recommended. Also, ensure that the voltage feedback loop is properly compensated.
The FAN73932MX is rated for operation from -40°C to 150°C (TJ) and -40°C to 125°C (TA) ambient temperature range. However, the device's performance and reliability may degrade at extreme temperatures. It's essential to ensure proper thermal management and heat sinking to maintain a safe operating temperature.
Yes, the FAN73932MX can be used in a synchronous rectification topology. However, it's essential to ensure that the synchronous rectifier MOSFET is properly selected and driven to minimize losses and ensure efficient operation. The FAN73932MX's adaptive dead-time control and synchronous rectification control features can help optimize the performance of the synchronous rectifier.
To troubleshoot issues with the FAN73932MX, start by verifying the PCB layout and component values against the recommended design. Check for any signs of overheating, and ensure that the input and output capacitors are of high quality and properly sized. Use an oscilloscope to monitor the output voltage and current waveforms, and check for any signs of oscillation or instability. Consult the datasheet and application notes for guidance on troubleshooting and debugging techniques.
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FAN73932MX Overview
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