LNK3317D-TL

AC DC Converters, Offline Switchers Overview

The LNK3317D-TL is a LinkSwitch-TNZ family offline switcher designed for flyback topologies. It integrates a 700V power MOSFET, high-voltage startup circuit, and digital control logic. The device operates at a fixed switching frequency of 66kHz with a maximum load cycle of 69%. It supports an input voltage range from 85VAC to 265VAC and delivers up to 10W output power. Key electrical parameters include a maximum output current of 575mA (CCM) or 360mA (MDCM), a minimum input voltage of 85VAC, and a supply current of 180μA. The component functions within a temperature range of -40°C to +150°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates X-capacitor discharge functionality to meet safety standards for low standby power applications.
• Combines primary-side regulation with constant voltage/constant current modes for simplified transformer design.
• Includes proprietary jittering and cycle-by-cycle peak current limiting for enhanced EMI performance and reliability.

AC DC Converters, Offline Switchers Applications

• Low-power AC-DC adapters for mobile devices
• Standby power supplies for consumer electronics
• Chargers for portable appliances

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'TL' indicates tape-and-reel packaging configuration when ordering. Confirm that the selected variant meets the required regulatory standards for your target market, such as RoHS compliance. Ensure the design accounts for the specified thermal limits and operating temperature range during procurement planning.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring integrated X-cap discharge and primary-side regulation in a compact SO-8C package. It is suitable for designs prioritizing low no-load power consumption and reduced bill-of-materials count by eliminating secondary side feedback components.

AC DC Converters, Offline Switchers Part Context

This part belongs to the LinkSwitch-TNZ series from Power Integrations, which focuses on ultra-low no-load power consumption. The series is engineered for cost-sensitive, high-volume consumer applications where efficiency and size are critical constraints.

AC DC Converters, Offline Switchers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer cross-reference guides for potential alternatives.