CAP014DG-TL [Power Integrations]

The CAPZero family is a series of ICs designed to automatically discharge X capacitors in AC-DC converters. When AC voltage is applied, it blocks current flow in the X capacitor safety discharge resistors, reducing power loss to less than 5 mW. When AC is disconnected, it automatically discharges the X capacitor by connecting series discharge resistors. This allows flexibility in choosing X capacitors to optimize EMI filtering and reduce inductor costs without increasing power consumption. The IC is self-supplied, requires no external bias, and meets safety standards for use before or after the system input fuse. It features high common mode surge immunity and high differential surge withstand. The device is EcoSmart™ with energy-efficient operation (<5 mW at 230 VAC).