LNK3208P

AC DC Converters, Offline Switchers Overview

The LNK3208P is a LinkSwitch-TNZ family AC/DC converter IC designed for non-isolated topologies including Buck, Buck-Boost, and Flyback configurations. It operates from an input voltage range of 85 VAC to 265 VAC with a maximum output voltage of 50 V. The device supports a continuous current (CCM) of 775 mA and a peak current (MDCM) of 485 mA at a switching frequency of 66 kHz. Key electrical parameters include a maximum duty cycle of 73% and a quiescent supply current of 275 uA. It functions within a temperature range of -40°C to +150°C and utilizes Silicon technology in a Through-Hole DIP-8 package.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-voltage power MOSFET and control logic into a single monolithic chip
• Supports multiple non-isolated converter topologies such as Buck, Buck-Boost, and Flyback
• Features proprietary constant on-time control for simplified design and stable operation

AC DC Converters, Offline Switchers Applications

• Non-isolated LED lighting drivers
• Buck and Boost converter circuits
• Flyback-based power supplies

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'P' confirms the DIP-8 through-hole package variant. Confirm RoHS compliance status via the manufacturer's official documentation. Ensure the application circuit matches the non-isolated topology requirements specified for this component series.

AC DC Converters, Offline Switchers Selection Notes

Select this part for designs requiring integrated power switching without external gate drivers. The fixed 66 kHz frequency aids in EMI management. Verify that the required output current does not exceed the 775 mA CCM limit. Ensure the input voltage range aligns with the 85-265 VAC specification.

AC DC Converters, Offline Switchers Part Context

This component belongs to the LinkSwitch-TNZ series by Power Integrations. It is categorized under PMIC AC/DC converters. The series is known for combining power and control functions to reduce component count in offline converter applications.

AC DC Converters, Offline Switchers Replacement Considerations

Check for other LNK3208 variants with different packages or suffixes if surface mount options are needed. Verify functional compatibility with LNK3209P if higher current capacity is required.