LNK3294P

AC DC Converters, Offline Switchers Overview

The LNK3294P is an AC/DC converter from the LinkSwitch-TN2 series by Power Integrations. It integrates a high-voltage MOSFET and controller in a PDIP-8C-7 package for through-hole mounting. The device supports Buck, Buck-Boost, and Flyback topologies with a switching frequency of 66 kHz and maximum duty cycle of 72%. It operates on input voltages from 85 VAC to 265 VAC. Output specifications include 5 V voltage and 120 uA current (MDCM) or 170 mA (CCM). Operating temperature ranges from -40 C to +150 C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-voltage power MOSFET and controller into a single low-pin-count package
• Supports multiple off-line converter topologies including flyback, buck, and buck-boost
• Includes built-in protection mechanisms such as thermal shutdown and line voltage detection

AC DC Converters, Offline Switchers Applications

• General purpose offline power supplies
• Battery chargers
• Standby power applications

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix code against official datasheets to confirm pinout and electrical characteristics. Ensure the component matches the required DIP-8C-7 package for through-hole assembly. Confirm RoHS compliance status if environmental regulations apply to your manufacturing process. Cross-reference manufacturer part numbers to avoid counterfeit components.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring integrated high-voltage switching without external gate drivers. Consider the 66 kHz switching frequency for EMI management and transformer size optimization. Evaluate the 170 mA output capability against load requirements. Verify that the non-isolated internal architecture suits the specific circuit topology needs.

AC DC Converters, Offline Switchers Part Context

This part belongs to the LinkSwitch-TN2 family, which combines precision control with high-voltage power switching. It is designed for low-cost, high-reliability offline power conversion. The series targets applications where board space and component count are critical constraints.

AC DC Converters, Offline Switchers Replacement Considerations

Check for direct substitutes within the LinkSwitch-TN2 series with compatible output currents. Verify pin compatibility for DIP-8 packages before substitution. Ensure replacement parts support the same 66 kHz frequency and voltage ratings.