TNY178DG-TL

AC DC Converters, Offline Switchers Overview

The TNY178DG-TL is an isolated AC/DC converter from the TinySwitch-LT series, designed for offline applications. It operates within a wide input voltage range of 85 VAC to 265 VAC and delivers up to 19.5 W of output power. The device features a switching frequency of 132 kHz with a maximum duty cycle of 65%. It supports a maximum output voltage of 50 V and includes internal protection mechanisms such as over-temperature shutdown. The component is housed in an SO-8C surface-mount package and functions reliably across an operating temperature range from -40°C to +150°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage power MOSFET with primary-side regulation for simplified design
• Includes automatic restart and overvoltage reaction for enhanced fault protection
• Features frequency jittering to reduce electromagnetic interference filtering costs

AC DC Converters, Offline Switchers Applications

• Adapters and chargers for mobile phones and cordless telephones
• PC standby power supplies and auxiliary power sources
• Low-power set-top boxes and DVD/PVR decoders
• Power supplies for appliances and industrial systems

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix TL indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the SO-8C package dimensions match your PCB footprint requirements. Cross-reference the part number against current Power Integrations catalogs to confirm active production status and availability constraints.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring compact size and minimal external components. It is suitable for applications needing reliable performance across universal input voltages. Consider the thermal management capabilities required for the specified power levels. Evaluate the need for isolation and the specific output voltage constraints of the target system architecture.

AC DC Converters, Offline Switchers Part Context

This part belongs to the TinySwitch-LT family, which combines a high-voltage MOSFET with control circuitry in a single package. The series is engineered for cost-effective, high-reliability power solutions. It utilizes primary-side regulation to eliminate optocouplers and bias windings. The TNY178 variant offers higher power capability compared to lower-numbered siblings in the same series.

AC DC Converters, Offline Switchers Replacement Considerations

Check for TNY178PN if through-hole mounting is required instead of surface mount. Verify compatibility with other TinySwitch-LT variants based on specific power and voltage needs.