TNY275PN

AC DC Converters, Offline Switchers Overview

The TNY275PN is an AC/DC converter from the TinySwitch-III series by Power Integrations. It integrates a 700V power MOSFET, oscillator, and current limit circuitry in a DIP-8 package. The device operates with an input voltage range of 85 VAC to 265 VAC. It delivers an output power of 11.5 W at 12 V. The switching frequency is 132 kHz with a maximum duty cycle of 65%. Quiescent supply current is 295 uA. Operating temperature ranges from -40 C to +150 C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700V power MOSFET with ON/OFF control for simple design without loop compensation
• Features user-selectable current limit via BP/M pin capacitor value
• Includes accurate hysteretic thermal shutdown protection with automatic recovery
• Utilizes frequency jittering to reduce EMI filter costs

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 low-power set-top decoders such as DVD and PVR systems
• Power supplies for appliances, industrial systems, and metering equipment

AC DC Converters, Offline Switchers Procurement Notes

Verify the manufacturer part number against official Power Integrations documentation to confirm the specific DIP-8 package and electrical ratings. Ensure compatibility with the required output voltage and power specifications for the target application. Cross-reference datasheet parameters such as switching frequency and operating temperature range to validate suitability for the intended design environment.

AC DC Converters, Offline Switchers Selection Notes

Select this component when a cost-effective offline switcher with integrated high-voltage MOSFET is required. The TinySwitch-III series offers flexible design options through selectable current limits. Consider the DIP-8 through-hole package for applications requiring robust mechanical mounting. Verify that the 11.5 W output capability meets the system load requirements within the specified input voltage range.

AC DC Converters, Offline Switchers Part Context

The TNY275PN belongs to the TinySwitch-III family of intelligent power switches. This series combines high-voltage MOSFET technology with advanced control features to simplify AC/DC converter designs. The integration reduces external component count, enhancing reliability and enabling single-sided PCB layouts. It is designed to meet global energy efficiency regulations including strict no-load power consumption standards.

AC DC Converters, Offline Switchers Replacement Considerations

TNY175DG is listed as an alias for this part number.