The Power Integrations LNK623DG-TL is an isolated flyback integrated circuit with a power rating of 9W. The device comes in an SO-8C package and has a breakdown voltage of 725V. It has a duty cycle of 54% and a switching frequency of 100kHz. The device features various fault protections, including current limiting, open loop, over temperature, and short circuit. It is part of the LNK623 family and is suitable for use in various applications, including LED lighting, home appliances, and industrial controls. The device has a high popularity rating and an estimated EOL date of 2022.