TNY268G

AC DC Converters, Offline Switchers Overview

The TNY268G is a TinySwitch-II series offline switcher from Power Integrations, designed for high-efficiency AC/DC conversion. It integrates a 700V MOSFET and operates at a switching frequency of 132 kHz. The device supports universal input voltages ranging from 85 VAC to 265 VAC. It delivers up to 15 W in wide-range applications and 23 W at 230 VAC. Key electrical parameters include a maximum duty cycle of 68% and a quiescent supply current of 380 µA. The component functions within a junction temperature range of -40°C to +150°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage 700V MOSFET with peak current mode control for simplified design.
• Incorporates frequency jittering technology to significantly reduce electromagnetic interference.
• Features programmable line undervoltage detection to prevent power glitches during startup.
• Includes comprehensive protection mechanisms such as auto-restart, over-temperature, and open-loop sensing.

AC DC Converters, Offline Switchers Applications

• Universal input AC/DC adapters
• PC and monitor standby power supplies
• Battery chargers for mobile devices
• Low-power consumer appliances

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'G' indicates the SMD-8B surface-mount package variant distinct from the DIP-8P version. Confirm RoHS compliance status and moisture sensitivity level (MSL) requirements for your assembly process. Ensure the ordering code matches the exact tape-and-reel or cut-tape specifications required for your manufacturing equipment.

AC DC Converters, Offline Switchers Selection Notes

Select this model when system constraints require a compact surface-mount footprint alongside high power density. The integrated features eliminate the need for external loop compensation and complex snubber circuits. Consider the thermal performance limits and the necessity for dip-varnished transformers to mitigate audible noise in the final application design.

AC DC Converters, Offline Switchers Part Context

This component belongs to the TinySwitch-II family, representing an evolution of the original TinySwitch series. It offers increased power capability and higher switching frequencies compared to predecessors like the TNY255. The G suffix specifically denotes the surface-mount configuration, providing design flexibility for automated PCB assembly processes.

AC DC Converters, Offline Switchers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official manufacturer resources for cross-reference data regarding newer generations or pin-compatible alternatives.