Power Integrations, Inc. PMIC - PMIC - AC DC Converters, Offline Switchers - LNK6404D LNK6404D

The LNK6404D is part of the LinkSwitch-3 family of integrated circuits designed for low-power constant voltage/constant current (CV/CC) applications. It simplifies the design of AC-DC converters by eliminating the need for an optocoupler and secondary control circuitry, which reduces component count and complexity. The device features a built-in 725 V power MOSFET and incorporates advanced performance features such as frequency jittering to minimize electromagnetic interference (EMI) and programmable switching frequency up to 85 kHz, allowing for smaller transformer sizes. The LNK6404D provides robust protection mechanisms, including auto-restart for output short-circuits and thermal shutdown with automatic recovery. It is designed to meet global energy efficiency standards, with no-load consumption below 10 mW at 230 VAC input. The device is suitable for applications such as chargers for portable devices and adapters, making it a versatile choice for engineers looking to implement efficient power management solutions.