TNY280PG

AC DC Converters, Offline Switchers Overview

The TNY280PG is a TinySwitch-4 AC/DC converter IC from Power Integrations, designed for offline flyback applications. It integrates a 725V MOSFET with advanced control and protection circuitry in a PDIP-8 package. The device supports an input voltage range of 85 VAC to 265 VAC and operates at a switching frequency of 132 kHz. It delivers up to 28.5 W at 85–265 VAC and 36.5 W at 230 VAC, with a maximum output current of 2.5 A. Key electrical parameters include a supply current of 630 µA, a maximum duty cycle of 65%, and a breakdown voltage of 700 V. The component functions within a temperature range of -40 °C to +150 °C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage 725V MOSFET with controller and protection circuits into a single monolithic chip.
• Features proprietary frequency jittering technology to reduce electromagnetic interference (EMI) noise.
• Includes comprehensive protection mechanisms such as cycle-by-cycle current limiting, thermal shutdown, and open-loop protection.
• Supports wide-range universal AC input without requiring external component adjustments.

AC DC Converters, Offline Switchers Applications

• Offline power supplies for consumer electronics
• Battery chargers for mobile devices and appliances
• General-purpose isolated DC power adapters

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'PG' indicates the PDIP-8 through-hole package variant when sourcing. Confirm RoHS compliance status via the manufacturer's official documentation or authorized distributor datasheets prior to ordering. Ensure the procurement channel provides valid traceability records for quality assurance purposes.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring compact size and high reliability in low-to-medium power applications. It is suitable for systems needing wide input voltage tolerance and integrated EMI reduction. Consider the thermal performance requirements relative to the 150 °C junction temperature limit during initial design validation.

AC DC Converters, Offline Switchers Part Context

The TNY280PG belongs to the TinySwitch-4 family, representing a generation of highly integrated power ICs. This series focuses on simplifying offline switch-mode power supply designs by combining power and control functions. It serves as a cost-effective alternative to discrete solutions, offering improved performance density for standard industrial and consumer markets.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official cross-reference lists for direct substitutes. Verify pinout compatibility and electrical parameter equivalence before replacing existing inventory.