TOP271VG

AC DC Converters, Offline Switchers Overview

The TOP271VG is an integrated off-line switcher from the TOPSwitch-JX family, designed for highly efficient power supplies ranging from 10 W to 245 W. It features a 725 V rated MOSFET and operates at selectable frequencies of 66 kHz or 132 kHz. The device supports universal input voltages from 85 VAC to 265 VAC. It provides a maximum output current of 7 A with a programmable current limit of 5.53 A. The component utilizes an eDIP-12 package with dimensions of 10.16 mm x 8.89 mm x 2.34 mm. It functions within a temperature range of -40 °C to +150 °C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 725 V power MOSFET, high-voltage switch, multi-mode PWM controller, and extensive protection circuits into a single chip.
• Features EcoSmart technology for energy efficiency, achieving no-load consumption below 100 mW at 265 VAC.
• Includes comprehensive protection mechanisms such as auto-restart, output short-circuit protection, over-current protection, and thermal shutdown.
• Utilizes frequency jittering to reduce EMI filter costs and optimized line feed-forward for improved ripple rejection.

AC DC Converters, Offline Switchers Applications

• High-efficiency AC/DC adapters
• Universal input power supplies
• Consumer electronics power modules

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix designation against official Power Integrations documentation to confirm pinout compatibility and functional variations. Ensure that the ordering information matches the required package type and electrical specifications. Cross-reference the manufacturer's latest datasheet to validate active status and any recent product change notifications before finalizing procurement.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring high efficiency across the entire load range and robust fault protection. Consider the eDIP-12 package constraints for thermal management and PCB layout. Evaluate the need for secondary sensing versus primary regulation based on system accuracy requirements. Confirm that the 725 V drain-source voltage rating adequately covers peak voltage stresses in the target application topology.

AC DC Converters, Offline Switchers Part Context

The TOP271VG belongs to the TOPSwitch-JX series, which combines advanced control logic with high-voltage power processing. This series is engineered to minimize external component count while maximizing reliability. The integration simplifies design processes for offline converters, offering a compact solution for medium-power applications where size and efficiency are critical design parameters.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official substitution guides for compatible alternatives within the TOPSwitch-JX family. Verify pin-to-pin compatibility and electrical parameter alignment when considering cross-series replacements. Ensure that any substitute part meets the same thermal and voltage ratings required by the original design specification.