TOP234P

AC DC Converters, Offline Switchers Overview

The TOP234P is a high-voltage integrated offline switch from the TOPSwitch-FX family, manufactured by Power Integrations. It integrates a 700V power MOSFET with a PWM controller and protection circuits in an 8-pin DIP package. The device supports flyback topology with a switching frequency range of 66kHz to 132kHz. It delivers up to 30W of output power and features a maximum duty cycle of 78%. Operating temperatures range from -40°C to +150°C junction temperature.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700V power MOSFET with a current-mode PWM controller for simplified design
• Includes comprehensive protection mechanisms such as over-temperature shutdown, cycle-by-cycle current limiting, and overvoltage protection
• Utilizes multi-mode operation to maintain high efficiency across varying load conditions

AC DC Converters, Offline Switchers Applications

• Offline flyback power supplies
• General-purpose AC/DC converters
• Battery chargers
• Consumer electronics adapters

AC DC Converters, Offline Switchers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as specific listings indicate non-compliance. Check lead times and availability carefully due to potential end-of-life or discontinuation notices associated with this part number.

AC DC Converters, Offline Switchers Selection Notes

Select the TOP234P for cost-sensitive applications requiring moderate power levels around 30W. Ensure thermal management strategies accommodate the 150°C junction temperature limit. Verify that the 8-DIP package fits the target PCB layout constraints compared to surface-mount alternatives.

AC DC Converters, Offline Switchers Part Context

This component belongs to the TOPSwitch-FX series, which combines high-voltage MOSFETs with advanced control logic. It represents a mature generation of integrated switches designed to reduce external component count and improve reliability in standard offline power conversion architectures.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official datasheets for pin-compatible alternatives within the same series. Verify electrical parameters match requirements before substitution.