Power Integrations, Inc. AC DC Converters, Offline Switches INN4077C-H185-TL

The INN4077C-H185-TL is part of the InnoSwitch4-CZ family of integrated switcher ICs designed for offline CV/CC flyback applications. It features a robust 750 V PowiGaN primary switch and employs zero voltage switching (ZVS) technology, which enhances efficiency and reduces switching losses. The device supports steady-state switching frequencies up to 155 kHz, allowing for compact transformer designs. This IC integrates primary and secondary controllers, a synchronous rectification driver, and a HIPOT-isolated feedback mechanism (FluxLink), which simplifies design and improves reliability. It offers high efficiency, with up to 95% efficiency and less than 30 mW no-load consumption. The INN4077C-H185-TL includes multiple protection features such as output overvoltage, undervoltage, overcurrent, and over-temperature protection, making it suitable for a variety of applications including chargers and adapters. The device is packaged in an InSOP-24D format and is compliant with safety standards including UL1577 and TUV (EN62368-1). It is designed for high-density applications, capable of delivering up to 135 W in open frame configurations and 145 W in adapter configurations.