TNY264PG

AC DC Converters, Offline Switchers Overview

The TNY264PG is a TinySwitch-II family offline switcher from Power Integrations, designed for high-efficiency AC/DC conversion. It integrates a 700V power MOSFET with oscillator, current limit, and thermal shutdown circuitry into a monolithic device. Operating at a fixed switching frequency of 132 kHz, it supports flyback topologies with a maximum duty cycle of 65%. The component delivers up to 9 W output power at 230 VAC input and 6 W across the 85-265 VAC range. It features a 7-lead DIP-8 package (8-DIP) suitable for through-hole mounting, with an operating junction temperature range of -40°C to 150°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates auto-restart protection for short circuit and open loop faults to reduce external component count.
• Includes programmable line under-voltage detection to prevent power on/off glitches during slow discharge events.
• Utilizes frequency jittering to significantly reduce electromagnetic interference emissions.
• Eliminates audible noise in ordinary varnished transformers without requiring special core structures.

AC DC Converters, Offline Switchers Applications

• Cell-phone chargers
• PC standby power supplies
• Color TV standby power supplies
• ISDN or DSL network terminals

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'PG' corresponds to the tube packaging format as indicated by distributor listings. Confirm the component status is Not For New Designs (NRND) before finalizing any new hardware architecture. Ensure the 8-DIP lead pitch matches the target PCB footprint requirements. Cross-reference the RoHS compliance status with the latest manufacturer documentation prior to procurement.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring a compact, low-cost solution for isolated power supplies under 10 W. The integrated nature of the controller and MOSFET simplifies transformer design by eliminating bias windings. Consider the 132 kHz switching frequency for smaller magnetic components compared to lower-frequency alternatives. Evaluate the thermal performance within the specified -40°C to 150°C junction temperature range for the intended enclosure environment.

AC DC Converters, Offline Switchers Part Context

This part belongs to the TinySwitch-II series, representing the second generation of enhanced energy-efficient low-power offline switchers. It succeeds the original TinySwitch family by offering higher switching frequencies and improved fault protection mechanisms. The series is engineered to replace bulky regulated linear power supplies while maintaining simplicity and low system cost through high integration levels.

AC DC Converters, Offline Switchers Replacement Considerations

The TNY264PN is listed as a manufacturer-recommended alternative, differing primarily in the DIP-8 package variant. Verify pinout compatibility and thermal characteristics when substituting between PG and PN suffixes. No other direct cross-model replacements are confirmed in the provided documentation.