STMicroelectronics provides a recommended PCB layout in the application note AN4553, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and thermal dissipation.
The selection of the inductor depends on the specific application requirements, such as the input voltage, output voltage, and output current. STMicroelectronics provides a list of recommended inductors in the datasheet, and also offers an inductor selection tool on their website to help with the selection process.
The maximum junction temperature of the L9822N is 150°C, as specified in the datasheet. It's essential to ensure that the device operates within the recommended temperature range to prevent overheating and ensure reliability.
While the L9822N can operate up to 150°C, it's essential to consider the derating of the device's performance and reliability at high temperatures. STMicroelectronics provides thermal derating curves in the datasheet to help designers evaluate the device's performance in high-temperature environments.
STMicroelectronics provides a troubleshooting guide in the application note AN4553, which covers common issues and their solutions, such as output voltage regulation, current limiting, and thermal shutdown. Additionally, the datasheet provides a list of possible faults and their corresponding fault flags.
L9822N datasheet
by STMicroelectronics
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