LNK302DG-TL

AC DC Converters, Offline Switchers Overview

The LNK302DG-TL is an AC/DC converter from the LinkSwitch-TN series by Power Integrations, designed for off-line power supplies. It integrates a 700V power MOSFET, oscillator, and control circuitry in an SO-8C package. The device supports universal input voltages ranging from 85 VAC to 265 VAC. It operates at a fixed switching frequency of 66 kHz with a maximum duty cycle of 72%. Output current capabilities are specified as 63 mA in MDCM and 80 mA in CCM. The component functions within a temperature range of -40°C to +150°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700V power MOSFET with switch-controlled oscillator and limit current circuitry
• Supports standard buck or boost configurations with universal input voltage capability
• Includes built-in thermal shutdown and hysteresis protection mechanisms

AC DC Converters, Offline Switchers Applications

• Off-line AC/DC converters
• LED drivers
• Standby power supplies

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'TL' against the manufacturer's official documentation to confirm tape and reel packaging specifications. Ensure the SO-8C package variant matches the required PCB footprint and thermal dissipation requirements for the target design. Cross-reference the part number with the latest datasheet revision to confirm electrical parameter consistency.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring high integration and low standby power consumption. The fixed 66 kHz frequency simplifies magnetics design compared to variable frequency alternatives. Consider the 700V MOSFET rating for appropriate voltage stress margins in flyback topologies. Evaluate the output current limits against the load requirements to ensure operation within the specified MDCM or CCM modes.

AC DC Converters, Offline Switchers Part Context

The LNK302DG-TL belongs to the LinkSwitch-TN family, which offers cost-effective solutions for low-power applications. This series is characterized by its ability to replace discrete components with a single IC solution. The DG suffix indicates the SO-8C package type, providing a compact form factor suitable for space-constrained designs while maintaining necessary isolation distances.

AC DC Converters, Offline Switchers Replacement Considerations

Consult the manufacturer's official substitution guide for verified alternative part numbers. Direct replacements must maintain compatible pinout, voltage ratings, and thermal characteristics. Generic equivalents may not replicate the integrated control features or efficiency profiles of the original LinkSwitch-TN design.