LNK4002S-TL

AC DC Converters, Offline Switchers Overview

The LNK4002S-TL is a LinkSwitch-4 AC/DC converter IC from Power Integrations, designed for high-reliability offline power supplies. It integrates a 700 V MOSFET and control logic in a SOT-23-6 package. The device supports universal input voltages ranging from 85 VAC to 265 VAC. It delivers up to 6.5 W of output power with constant voltage and constant current regulation. The switching frequency is fixed at 65 kHz, and the maximum duty cycle is 50%. Operating temperature ranges from -25°C to +125°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700 V power MOSFET with proprietary control circuitry for simplified design.
• Provides constant voltage and constant current regulation modes for flexible load management.
• Features internal high-voltage current source for startup and bypass operation.
• Includes comprehensive protection mechanisms such as cycle-by-cycle current limiting and thermal shutdown.

AC DC Converters, Offline Switchers Applications

• Universal input AC/DC adapters
• Consumer electronics power supplies
• Small appliance power conversion

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'TL' indicates tape and reel packaging when placing orders. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure that the SOT-23-6 package dimensions align with your PCB footprint requirements. Check for any recent product change notifications regarding pinout or electrical characteristics updates.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring compact size due to its small SOT-23-6 package. It is suitable for designs needing integrated high-voltage MOSFETs to reduce external component count. Consider the 6.5 W power limit and 65 kHz switching frequency when designing transformer specifications. Evaluate thermal performance within the specified operating temperature range for enclosure constraints.

AC DC Converters, Offline Switchers Part Context

This part belongs to the LinkSwitch-4 family, which targets low-cost, high-volume applications. It replaces older generations like LinkSwitch-II and III by offering improved integration and reliability. The series is characterized by minimal external components and robust performance in consumer-grade environments.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official substitution guides for compatible parts within the LinkSwitch family. Verify pin compatibility and electrical parameters before replacing with other models.