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MP4078 - Single-Stage Offline Controller

Datasheet Summary

Description

The MP4078 is an single-stage offline controller with active power factor correction (PFC) for constant voltage output applications.

The device implements primary-side regulation (PSR) control without requiring a secondary feedback circuit or optocoupler for flyback applications.

Features

  • that greatly enhance system reliability and safety, including output over-voltage protection (OVP), output short-circuit protection (SCP), primary-side over-current protection (OCP), and over-temperature protection (OTP). The MP4078 is available in an SOIC-8 package.

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Datasheet preview – MP4078

Datasheet Details

Part number MP4078
Manufacturer MPS
File Size 1.68 MB
Description Single-Stage Offline Controller
Datasheet download datasheet MP4078 Datasheet
Additional preview pages of the MP4078 datasheet.

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Full PDF Text Transcription

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MP4078 Primary-Side Control, CV Output, Single-Stage Offline Controller with Active PFC DESCRIPTION The MP4078 is an single-stage offline controller with active power factor correction (PFC) for constant voltage output applications. The device implements primary-side regulation (PSR) control without requiring a secondary feedback circuit or optocoupler for flyback applications. It is also available for non-isolated topologies (e.g. buck-boost). The device achieves ultra-low standby power consumption. Its pulse frequency modulation (PFM) implements a minimum operating frequency under no-load conditions. The MP4078 works in discontinuous conduction mode (DCM) with valley switching for improved efficiency performance.
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