Power Integrations, Inc. AC DC Converters, Offline Switches INN4077C-H182-TL

The INN4077C-H182-TL is part of the InnoSwitch4-CZ family of off-line CV/CC ZVS flyback integrated switcher ICs, designed for high-density power supply applications. It features a robust 750 V PowiGaN primary switch and supports steady-state switching frequencies up to 155 kHz, which helps minimize transformer size. The device achieves up to 95% efficiency and has a no-load consumption of less than 30 mW. This IC incorporates advanced protection features, including output overvoltage, undervoltage, over-current, and over-temperature protection. It also offers adjustable output current sensing and can operate in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM) with zero voltage switching (ZVS) capabilities. The INN4077C-H182-TL is suitable for applications such as high-efficiency USB PD adapters and power supplies up to 135 W in open-frame configurations. The product is compliant with safety standards, including UL1577 and TUV (EN62368-1), and features reinforced isolation greater than 4000 VAC. Its compact InSOP-24D package is halogen-free and RoHS compliant, making it a suitable choice for environmentally conscious designs.