INN2125K-TL

AC DC Converters, Offline Switchers Overview

The INN2125K-TL is an offline AC/DC converter from the InnoSwitch-CE series by Power Integrations. It integrates a 650V silicon FET and synchronous rectification control for flyback topologies. The device supports constant voltage and constant current regulation with a maximum output power of 20W. Key electrical parameters include a 10mW no-load input power capability and a minimum secondary sense voltage of 300mV. It operates within a wide input voltage range and utilizes an eSOP-R16B package.

AC DC Converters, Offline Switchers Feature Summary

• Integrates primary-side switching FET and secondary-side synchronous rectification controller
• Provides combined constant voltage and constant current regulation modes
• Achieves ultra-low no-load input power consumption
• Supports operation with low secondary sense voltages

AC DC Converters, Offline Switchers Applications

• Offline AC/DC power supplies
• Constant voltage and constant current charger adapters
• General purpose isolated DC-DC converters

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'TL' indicates reel packaging when ordering. Confirm the manufacturer part number matches exactly to ensure correct pinout and thermal characteristics. Check RoHS compliance documentation for environmental requirements. Validate that the 650V rating meets the circuit's peak voltage stress. Ensure the 20W power limit aligns with the design specifications.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring integrated primary and secondary control in a compact form factor. The 650V rating suits standard mains voltage applications. Consider the eSOP-R16B package for thermal management needs. Verify compatibility with the target flyback transformer design. Evaluate the 300mV minimum sense voltage against the chosen secondary rectifier diode drop.

AC DC Converters, Offline Switchers Part Context

This device belongs to the InnoSwitch-CE family, which combines high-voltage switches with advanced control ICs. The series targets cost-sensitive applications requiring high efficiency and low standby power. It represents a consolidated solution replacing discrete switcher and SR controller combinations.

AC DC Converters, Offline Switchers Replacement Considerations

Check for other variants within the InnoSwitch-CE series with different power ratings or package options. Verify pin-to-pin compatibility before substituting with similar models from the same manufacturer.