LNK353P

AC DC Converters, Offline Switchers Overview

The LNK353P is an offline switcher from the LinkSwitch-HF series, designed for flyback converter topologies. It integrates a high-voltage power MOSFET and control circuitry in an 8-PDIP-B package. Key electrical parameters include a switching frequency of 200kHz, a breakdown voltage of 700V, and a maximum output current capability of 170A as per distributor listings. The device supports a duty cycle of 63% and operates within a junction temperature range of -40°C to 150°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-voltage power MOSFET with control logic for compact design
• Includes comprehensive fault protection mechanisms such as over-temperature and short-circuit protection
• Supports flyback topology with fixed switching frequency operation

AC DC Converters, Offline Switchers Applications

• Offline AC/DC converters
• Flyback power supply designs
• General-purpose isolated power conversion

AC DC Converters, Offline Switchers Procurement Notes

Verify component status carefully as the LNK353P is listed as obsolete or discontinued by major distributors. Confirm availability of alternative packages or newer series replacements if long-term production support is required. Check RoHS compliance status as older revisions may not meet current environmental standards.

AC DC Converters, Offline Switchers Selection Notes

Select this component for low-power offline applications requiring integrated switching and control. Ensure the 700V breakdown voltage meets input surge requirements. Consider the 8-PDIP-B package constraints for thermal management and PCB layout. Verify that the 200kHz frequency aligns with transformer design specifications.

AC DC Converters, Offline Switchers Part Context

Part of the LinkSwitch-HF family, which focuses on high-frequency operation for reduced magnetics size. This series targets cost-sensitive, low-power adapter applications. The LNK353P specifically serves as a legacy option within this portfolio, preceding newer generations with enhanced efficiency features.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official substitution guides for updated LinkSwitch-TN or HP series equivalents. Verify pin compatibility and thermal performance when transitioning to modern alternatives.