LT3798MPMSE#TRPBF

AC DC Converters, Offline Switchers Overview

The LT3798MPMSE#TRPBF is an isolated flyback controller integrating active power factor correction (PFC) and opto-coupler-less voltage feedback. It operates with an input voltage range of 10 V to 38 V and supports switching frequencies from 500 Hz to 150 kHz. The device features a shutdown function and draws an operating supply current of 1.3 mA. Designed for surface mount applications, it utilizes a 16-lead MSOP package with an exposed pad. The component is rated for extended industrial temperatures ranging from -55 °C to +150 °C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates active PFC circuitry with single-stage conversion topology
• Eliminates the need for opto-couplers via proprietary feedback technology
• Supports wide input voltage ranges suitable for universal AC inputs

AC DC Converters, Offline Switchers Applications

• Offline AC/DC power supplies
• Industrial power conversion systems
• High-efficiency LED drivers requiring isolation

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm that the MP grade ensures extended temperature performance compared to standard commercial grades. Cross-reference the manufacturer part number with official Analog Devices documentation to ensure compatibility with required thermal and electrical specifications before procurement.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring high power factor without complex multi-stage architectures. It is suitable for applications demanding isolation and precise output regulation without opto-isolators. Consider the thermal requirements of the MSOP-EP package for heat dissipation in enclosed environments.

AC DC Converters, Offline Switchers Part Context

This part belongs to the LT3798 family of offline switchers. It shares functional similarities with other isolated controllers but distinguishes itself through integrated PFC and no-opto feedback capabilities. The MPMSE designation denotes the military/extended temperature grade within the product line.

AC DC Converters, Offline Switchers Replacement Considerations

Direct substitutes are not explicitly confirmed in public documentation. Evaluate alternative Analog Devices flyback controllers with similar voltage ratings and package dimensions if availability is constrained.