TOP232PN

AC DC Converters, Offline Switchers Overview

The TOP232PN is an AC/DC converter from the TopSwitch family, manufactured by Power Integrations. It integrates a high-voltage power switch with a current-mode controller into a single DIP-8 package. The device operates on silicon technology and supports universal input voltages ranging from 85 VAC to 265 VAC. It features a switching frequency of 132 kHz and a maximum duty cycle of 78%. The component functions as an offline converter with a typical output voltage of 12 V. It draws a working supply current of 1.5 mA and is rated for operation between -40°C and +150°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage power switch with a current-mode controller in a single package
• Supports universal input voltage ranges from 85 VAC to 265 VAC
• Features a fixed switching frequency of 132 kHz for consistent performance
• Includes built-in thermal shutdown and other protection mechanisms

AC DC Converters, Offline Switchers Applications

• Universal input adapters
• Offline converters
• Battery chargers
• General-purpose power supplies

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific ordering suffix and package variant when sourcing, as availability may vary across distributors. Confirm RoHS compliance status and environmental declarations directly with the manufacturer or authorized suppliers. Check for any product change notifications (PCN) regarding manufacturing site transfers or material updates before finalizing procurement plans.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring a compact, integrated solution for low-power offline applications. Ensure the DIP-8 through-hole package aligns with the PCB layout constraints. Verify that the 132 kHz switching frequency meets EMI requirements without additional filtering. Consider the thermal management capabilities given the operating temperature range up to +150°C.

AC DC Converters, Offline Switchers Part Context

The TOP232PN belongs to the TopSwitch family, which combines power switching and control logic into a single monolithic IC. This integration reduces component count and board space compared to discrete solutions. The device is designed for cost-effective, high-reliability power supplies in consumer and industrial electronics.

AC DC Converters, Offline Switchers Replacement Considerations

Check for direct pin-compatible substitutes within the same TopSwitch family, such as TOP231PN or TOP233PN, depending on power requirements. Verify electrical parameter compatibility and package integrity before substitution.