STMicroelectronics provides a recommended PCB layout in the application note AN2344, which includes guidelines for thermal vias, copper pours, and component placement to ensure optimal thermal performance.
For high-availability applications, it's recommended to use the PM6686's built-in redundancy features, such as redundant power supplies, and configure the device for hot-swap capability. Additionally, implement a robust fault detection and isolation mechanism to ensure seamless operation in case of failures.
The maximum allowed voltage drop across the PM6686's input capacitors is 1.5V. Exceeding this value may affect the device's performance and reliability. It's essential to select input capacitors with low ESR and ensure proper PCB layout to minimize voltage drops.
While the PM6686 can operate with a non-isolated power supply, it's not recommended. The device is designed to work with isolated power supplies, and using a non-isolated supply may compromise the device's performance, reliability, and safety. If a non-isolated supply is used, ensure proper isolation and protection mechanisms are implemented.
STMicroelectronics provides a comprehensive troubleshooting guide in the PM6686 datasheet and application notes. Additionally, use the device's built-in diagnostic features, such as the fault pin and status registers, to identify and isolate faults. Consult the device's documentation and STMicroelectronics' support resources for further assistance.
PM6686 datasheet
by STMicroelectronics
