TNY274GN-TL

AC DC Converters, Offline Switchers Overview

The TNY274GN-TL is an AC/DC converter from the TinySwitch-III series, manufactured by Power Integrations. It integrates a 700 V power MOSFET, oscillator, and control circuitry in an SMD-8 package. The device operates with a switching frequency of 132 kHz and supports a maximum duty cycle of 65%. Input voltage ranges from 85 VAC to 265 VAC. Output capabilities include 11 W at 230 VAC and 8.5 W at 85-265 VAC for open-frame applications. The quiescent supply current is 275 uA. Operating temperature spans from -40°C to +150°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700 V power MOSFET with high-side switch topology for compact design.
• Utilizes simple on/off control mechanism eliminating the need for loop compensation.
• Features frequency jitter to reduce EMI filtering requirements and costs.
• Includes precise hysteresis thermal shutdown with automatic recovery protection.

AC DC Converters, Offline Switchers Applications

• Open-frame power supplies
• Adapters and chargers
• General purpose AC/DC conversion

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'TL' against the manufacturer's official documentation to confirm reel packaging specifications and tape dimensions. Ensure the component matches the required SMD-8 footprint and pinout configuration for your PCB layout. Cross-reference the RoHS compliance status and moisture sensitivity level with the latest datasheet to meet assembly process requirements. Confirm that the ordering part number aligns exactly with the intended variant to avoid functional discrepancies.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring simplified control loops without feedback compensation. The adjustable current limit via the BP/M pin allows optimization for either peak power or efficiency. Consider the integrated thermal protection for systems needing robust fault handling. The wide input voltage range supports global compatibility. Evaluate the trade-off between the fixed switching frequency and EMI performance requirements for the target application environment.

AC DC Converters, Offline Switchers Part Context

This part belongs to the TinySwitch-III family, which offers flexible design solutions for low-power offline converters. The series enables adjacent product substitution without circuit redesign due to strict parameter tolerances. The TNY274GN-TL specifically targets applications where system cost reduction and higher output power density are critical compared to previous generations.

AC DC Converters, Offline Switchers Replacement Considerations

TNY274PN is a documented substitute part number within the same series, offering equivalent functionality in a DIP-8 package. Verify pin compatibility and thermal characteristics when transitioning between surface mount and through-hole variants.