TNY377GN-TL

AC DC Converters, Offline Switchers Overview

The TNY377GN-TL is a TinySwitch-III integrated offline switcher designed for AC/DC conversion. It incorporates a 700V power MOSFET, oscillator, high-voltage current source, and thermal shutdown circuitry within a single package. The device supports an input voltage range of 85VAC to 265VAC. It delivers a maximum output power of 23W at 230VAC and 18W across the universal input range. The switching frequency is fixed at 264kHz with a maximum duty cycle of 65%. Operating supply current is specified at 570uA. The component operates within a temperature range of -40°C to +150°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700V power MOSFET with on-chip control logic for simplified design
• Utilizes ON/OFF control scheme to maintain constant efficiency at light loads
• Features accurate hysteresis thermal shutdown protection with automatic recovery
• Employs self-biasing architecture eliminating the need for auxiliary bias windings

AC DC Converters, Offline Switchers Applications

• Chargers and adapters for mobile phones and cordless telephones
• Power supplies for PDA devices and digital cameras
• Standby power sources for PC systems meeting strict energy regulations
• Low-power set-top decoders and DVD/PVR equipment
• Consumer appliances and industrial metering systems

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm package type and tape-and-reel configuration. Confirm end-of-life status and availability through authorized distributors prior to finalizing procurement plans. Ensure compliance with RoHS directives and humidity sensitivity classifications relevant to the manufacturing timeline.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring minimal external components and single-sided PCB layout capabilities. The ON/OFF control mechanism is suitable for applications demanding low standby power consumption without complex feedback loop compensation. Evaluate thermal management requirements given the integrated thermal shutdown feature and wide operating temperature range.

AC DC Converters, Offline Switchers Part Context

This part belongs to the TinySwitch-III series from Power Integrations, representing an evolution in integrated offline switcher technology. The series focuses on reducing system costs through high integration levels and enhanced flexibility. It serves as a solution for low-to-medium power applications where size constraints and regulatory compliance are critical factors in power supply design.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official discontinuation notices for valid substitute part numbers. Cross-reference electrical parameters such as breakdown voltage and switching frequency when evaluating alternative components. Verify pin compatibility and thermal characteristics to ensure seamless integration into existing designs.