LNK6769K [Power Integrations]

The LinkSwitch-HP family integrates a controller and high-voltage power MOSFET into one package. It uses an enhanced peak current mode PWM control scheme with multi-mode operation for continuous conduction mode (CCM) primary side regulated (PSR) power supplies up to 90 W. The device eliminates the need for optocouplers and secondary control circuitry, simplifying designs and reducing system cost. It features ±5% output voltage tolerance, 132 kHz operation to reduce transformer size, programmable current limit, and extensive protection features including auto-restart, output short-circuit protection, overvoltage protection, and thermal shutdown. The multi-mode control maximizes efficiency across the full load range with no-load consumption below 30 mW at 230 VAC.