TNY276PN

AC DC Converters, Offline Switchers Overview

The TNY276PN is a TinySwitch-III series AC/DC converter from Power Integrations, designed for offline switching applications. It integrates a 700 V power MOSFET, oscillator, high-voltage switched current source, user-selectable current limit, and thermal shutdown circuit. Operating with an ON/OFF control scheme, it supports input voltages of 85–265 VAC. The device delivers up to 15 W output power in adapter configurations and 19 W in open-frame designs at 230 VAC. Key electrical parameters include a switching frequency of 132 kHz, a maximum duty cycle of 65%, and a supply current of 310 µA. It functions within a temperature range of -40 °C to +150 °C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700 V power MOSFET with ON/OFF control for simplified design without loop compensation
• Features user-selectable current limiting via the BP/M pin capacitor to optimize peak or continuous power
• Includes accurate hysteresis thermal shutdown with automatic recovery for enhanced safety
• Utilizes frequency jittering to reduce EMI filter costs and self-biasing to eliminate auxiliary windings

AC DC Converters, Offline Switchers Applications

• Chargers and adapters for mobile phones, cordless phones, PDAs, and digital cameras
• PC standby power supplies and other auxiliary power sources
• Power supplies for DVD players, PVRs, and low-power set-top decoders
• Power systems for appliances, industrial equipment, and metering devices

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and lead-free status. Ensure compatibility with required isolation standards and thermal management requirements for the target enclosure. Confirm availability through authorized distributors to guarantee component authenticity and traceability.

AC DC Converters, Offline Switchers Selection Notes

Select this component for cost-sensitive designs requiring high integration and minimal external components. It is suitable for applications needing flexible power scaling between 7 W and 19 W depending on the topology. Consider its simple ON/OFF control for designs prioritizing ease of implementation over complex regulation needs.

AC DC Converters, Offline Switchers Part Context

The TNY276PN belongs to the TinySwitch-III family, which offers extended power ranges and enhanced flexibility compared to previous generations. This series allows for interchangeable replacement among adjacent models without circuit redesign. The DIP-8 package facilitates through-hole mounting, supporting robust PCB layouts and efficient heat dissipation via the source pin.

AC DC Converters, Offline Switchers Replacement Considerations

TNY276DG is listed as an alias for this part number.