TNY279GN-TL

AC DC Converters, Offline Switchers Overview

The TNY279GN-TL is a TinySwitch-III intelligent power switch from Power Integrations, designed for offline AC/DC conversion. It integrates a 700V power MOSFET with control circuitry in an SMD-8 package. The device supports flyback topology at a switching frequency of 132 kHz and a maximum duty cycle of 65%. It operates on input voltages ranging from 85 VAC to 265 VAC, delivering up to 25 W output power. Key electrical parameters include a quiescent supply current of 510 uA and an operating temperature range from -40°C to +150°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates ON/OFF control scheme for constant efficiency at light loads without loop compensation
• Features self-biasing architecture eliminating the need for bias windings or auxiliary components
• Includes precise hysteretic thermal shutdown with automatic recovery for enhanced safety
• Utilizes frequency jittering to reduce EMI filter costs and improve electromagnetic compatibility

AC DC Converters, Offline Switchers Applications

• Mobile phone and cordless phone chargers
• PDA and digital camera power adapters
• MP3 players and portable audio devices
• Razor and small appliance power supplies
• PC standby and auxiliary power circuits

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix TL indicates reel packaging when sourcing. Confirm RoHS compliance status through official documentation as requirements vary by region. Ensure moisture sensitivity level 4 handling protocols are followed during assembly. Cross-reference datasheet DER-173 for reference design validation prior to implementation.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring high flexibility and low system cost within the specified power range. The integrated features simplify PCB layout and reduce component count. Consider the 700V breakdown voltage for appropriate isolation requirements. Evaluate the 132 kHz switching frequency against EMI constraints and transformer design limitations.

AC DC Converters, Offline Switchers Part Context

This part belongs to the TinySwitch-III series, which offers enhanced reliability and energy efficiency compared to previous generations. The series is characterized by its ability to meet strict global energy regulations such as CEC standards. It provides a robust solution for low-power applications where size and cost are critical factors.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official substitution lists for compatible variants within the same family. Verify pinout and thermal characteristics match before swapping. Ensure functional equivalence regarding current limits and protection mechanisms.