TNY379PN

AC DC Converters, Offline Switchers Overview

The TNY379PN is an energy-efficient, off-line switcher from the TinySwitch-PK family by Power Integrations. It integrates a 700V power MOSFET, oscillator, high-voltage switched current source, and ON/OFF control circuitry into a single package. Designed for flyback topologies, it operates at switching frequencies between 132kHz and 264kHz with a maximum duty cycle of 65%. The device supports up to 32W of output power and features comprehensive fault protection including current limiting, over-temperature shutdown, and overvoltage protection. It utilizes self-biasing technology to eliminate bias windings.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700V power MOSFET with ON/OFF control for simplified design
• Utilizes self-biasing architecture to remove the need for auxiliary bias windings
• Includes enhanced peak power performance capabilities within the TinySwitch-PK series
• Provides automatic recovery thermal shutdown protection without manual reset

AC DC Converters, Offline Switchers Applications

• Adapters and chargers for mobile phones and cordless telephones
• Power supplies for PDAs, digital cameras, and MP3 players
• Standby power supplies for personal computers
• Power adapters for DVD players and PVRs
• Low-power set-top box decoders and home appliances

AC DC Converters, Offline Switchers Procurement Notes

Verify component authenticity through authorized distributors as this part is obsolete. Confirm that replacement units match the original pinout and electrical specifications. Check datasheets for any specific handling requirements related to the PDIP-C package. Ensure compliance with relevant safety standards for the intended application environment before deployment.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring high reliability in low-to-medium power offline applications. Consider its integrated protection features for systems needing robust fault management. Evaluate the 8-DIP package for through-hole mounting constraints. Assess the 32W power capability against specific load requirements to ensure adequate headroom for peak operations.

AC DC Converters, Offline Switchers Part Context

The TNY379PN belongs to the TinySwitch-PK family, which offers enhanced peak power performance compared to standard TinySwitch variants. This series is designed to provide system cost reduction through minimal external component counts. It represents a mature technology solution for isolated AC/DC conversion tasks where efficiency and compactness are prioritized.

AC DC Converters, Offline Switchers Replacement Considerations

TNY277PG is listed as a similar substitute part number.