LNK354P

AC DC Converters, Offline Switchers Overview

The LNK354P is an offline switcher from the LinkSwitch-HF family, designed for flyback converter topologies. It integrates a 700V power MOSFET with primary-side regulation and control logic in an 8-pin DIP-B package. The device supports a switching frequency of 200kHz and delivers up to 6W of output power. Key electrical parameters include a maximum drain-source voltage of 700V, a typical on-resistance of 45Ω, and a peak current limit of 750mA. It operates within a temperature range of -40°C to +150°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-voltage power MOSFET with primary-side regulation controller
• Eliminates optocoupler and secondary-side feedback components
• Includes comprehensive protection against over-current, over-temperature, and open-loop faults

AC DC Converters, Offline Switchers Applications

• Low-power AC/DC adapters
• Standby power supplies
• Battery chargers

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'P' confirms the through-hole PDIP-B packaging variant. Confirm RoHS compliance status as older revisions may differ. Check manufacturer archives for obsolescence notices or last-time-buy dates. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

AC DC Converters, Offline Switchers Selection Notes

Select this component for cost-sensitive designs requiring minimal external parts. Suitable for applications where isolation via optocouplers is undesirable. Verify that the 6W power limit meets load requirements. Consider thermal management due to integrated switch placement. Validate input voltage ranges against local grid standards.

AC DC Converters, Offline Switchers Part Context

Part of the LinkSwitch-HF series, offering enhanced efficiency compared to standard LinkSwitch devices. Designed to reduce bill-of-materials count by removing secondary-side regulation elements. Competes with other single-chip offline solutions targeting sub-10W power segments.

AC DC Converters, Offline Switchers Replacement Considerations

LNK353P is a related variant within the same family but typically specifies lower power output (4W). Verify pinout compatibility before substitution. Check if the replacement supports the required 6W load capacity. Confirm identical package dimensions for board retention.