INN2123K-TL

AC DC Converters, Offline Switchers Overview

The INN2105K-TL is an AC/DC converter from the InnoSwitch-CE series by Power Integrations. It features a flyback topology with a 650V FET and operates within an input voltage range of 85 VAC to 265 VAC. The device delivers 20 W output power at 50 V and 2 A, utilizing silicon technology. Key electrical parameters include a switching frequency of 100 kHz, maximum duty cycle of 60%, and quiescent current of 970 uA. It supports constant voltage/constant current regulation in an eSOP-R16B package, functioning between -40°C and +105°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-voltage power switch and controller for compact design
• Provides constant voltage and constant current regulation modes
• Includes integrated EMI filter for reduced external component count

AC DC Converters, Offline Switchers Applications

• Adapters and chargers
• General purpose power supplies
• Battery chargers

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific part number against official manufacturer documentation before procurement. Confirm that the suffix matches the required tape and reel packaging configuration. Ensure compliance with RoHS directives and humidity sensitivity levels as specified in the datasheet. Cross-reference ordering information with authorized distributors to avoid counterfeit components.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring isolated flyback conversion up to 20 W. Consider the eSOP-R16B package constraints for thermal management. Evaluate the 100 kHz switching frequency against transformer design requirements. Verify input voltage ranges align with global mains specifications.

AC DC Converters, Offline Switchers Part Context

This part belongs to the InnoSwitch-CE family, which combines primary-side regulation with integrated power switching. It targets cost-sensitive applications needing reliable performance. The series emphasizes simplified design through integration of control logic and protection features into a single monolithic IC.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official substitution guides for compatible parts within the same product family. Verify pinout compatibility and electrical parameter equivalence before replacing.