MP4030

TRIAC-Dimmable, Primary-Side-Control

Offline LED Controller with Active PFC

MP4030 Rev.1.02

www.MonolithicPower.com

1

4/16/2013

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© 2013 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP4030 is a TRIAC-dimmable, primary-side-

control, offline LED lighting controller with active

PFC. It can output an accurate LED current for

an isolated lighting application with a single-stage

converter. The proprietary real-current-control

method can accurately control the LED current

using primary-side information. It can significantly

simplify

LED

lighting

system

design

by

eliminating secondary-side feedback components

and the optocoupler.

The MP4030 implements power-factor correction

and works in boundary-conduction mode to

reduce MOSFET switching losses.

The MP4030 has an integrated charging circuit at

the supply pin for fast start-up without a

perceptible delay.

The proprietary dimming contraol expands the

TRIAC-based dimming range.

The MP4030 has multiple protections that greatly

enhance system reliability and safety, and

include

over-voltage

protection,

short-circuit

protection, programmable primary-side over-

current

protection,

supply-pin

under-voltage

lockout, and over-temperature protection.

All fault protections feature auto-restart.

The MP4030 is available in an 8-pin SOIC

package.

FEATURES

 Primary-Side-Control without Requiring a

Secondary-Side Feedback Circuit

 Internal Charging Circuit at the Supply Pin for

Fast Start-Up

 Accurate Line Regulation

 High Power Factor

 Flicker-Free, Phase-Controlled TRIAC

Dimming with Expanded Dimming Range.

 Operates in Boundary Conduction Mode

 Cycle-by-Cycle Current Limit

 Programmable Primary-Side Over-Current

Protection

 Over-Voltage Protection

 Short-Circuit Protection

 Over-Temperature Protection

 Available in an 8-Pin SOIC Package

APPLICATIONS

 Solid-State Lighting, including:

 Industrial and Commercial Lighting

 Residential Lighting

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Products, Quality Assurance page.

“MPS” and “The Future of Analog IC Technology” are registered trademarks of

Monolithic Power Systems, Inc.