TOP222GN-TL

AC DC Converters, Offline Switchers Overview

The TOP222GN-TL is an integrated offline switcher from the TOPSwitch-II family, manufactured by Power Integrations. It combines high-voltage switching circuitry with control logic in a single package. The device supports multiple topologies including flyback, boost, buck, and forward configurations. It operates at a fixed switching frequency of 100 kHz and delivers up to 15 W of output power. The component features a maximum duty cycle of 67% and includes built-in current limit and thermal shutdown protection.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-voltage switching transistor and control circuitry into a single monolithic chip
• Provides comprehensive protection mechanisms including cycle-by-cycle current limiting and thermal shutdown
• Supports versatile converter topologies such as flyback, boost, buck, and forward applications

AC DC Converters, Offline Switchers Applications

• Flyback converters for AC-DC power supplies
• Buck converters for isolated DC-DC conversion
• Boost converters for voltage step-up applications
• Forward converters for medium-power isolation

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'GN-TL' corresponds to the surface-mount 8-SMD variant rather than through-hole packages. Confirm RoHS compliance status and moisture sensitivity level (MSL 4) requirements for your assembly process. Check if the part is marked as Not For New Designs, which may impact long-term supply availability. Ensure the ordering quantity matches the manufacturer's standard packaging specifications.

AC DC Converters, Offline Switchers Selection Notes

Select this component when designing low-to-medium power isolated converters requiring high integration. It is suitable for applications needing 15 W output with simplified design due to integrated protection. Consider the 100 kHz switching frequency for transformer size optimization. Evaluate the 8-SMD package constraints against your PCB layout space and thermal dissipation needs compared to through-hole alternatives.

AC DC Converters, Offline Switchers Part Context

The TOP222GN-TL belongs to the TOPSwitch-II series, representing an evolution in integrated offline switcher technology. This family consolidates power MOSFETs and control ICs to reduce component count and board area. The GN-TL designation specifically identifies the surface-mount version within the broader TOP222 product line, offering flexibility in manufacturing processes while maintaining the robust performance characteristics of the series.

AC DC Converters, Offline Switchers Replacement Considerations

TOP242GN-TL is documented as a similar replacement option within the same manufacturer portfolio.