MP4031 Datasheet PDF - MPS

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MP4031
MPS

Part Number MP4031
Description Primary-Side-Controlled Offline LED Controller
Page 20 Pages


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The Future of Analog IC Technology
MP4031
TRIAC and Analog Dimmable,
Primary-Side–Controlled
Offline LED Controller with Active PFC
DESCRIPTION
The MP4031 is a TRIAC and analog dimmable,
primary-side–controlled, 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 MP4031 implements power-factor correction
and works in boundary-conduction mode to
reduce MOSFET switching losses.
The MP4031 has an integrated charging circuit at
the supply pin for fast start-up without a
perceptible delay.
The proprietary dimming control expands the
TRIAC-based dimming range.
The special current sense structure can
implement analog dimming.
The MP4031 has multiple protections that greatly
enhance system reliability and safety, including
over-voltage protection, overload protection,
supply-pin under-voltage lockout, and over-
temperature protection.
All fault protections feature auto-restart.
The MP4031 is available in an 8-pin SOIC
package.
FEATURES
Primary-Side-Control without Secondary-Side
Feedback
Internal Charging Circuit at the Supply Pin for
Fast Start-Up
Accurate Line Regulation
High Power Factor
Operates in Boundary Conduction Mode
Flicker-Free, Phase-Controlled TRIAC
Dimming with Expanded Dimming Range.
Analog-Dimming Compatible
Cycle-by-Cycle Current Limit
Over-Voltage Protection
Over-Load Protection
Over-Temperature Protection
Available in an 8-Pin SOIC Package
APPLICATIONS
Solid-State Lighting, including:
o Industrial and Commercial Lighting
o 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.
MP4031 Rev.1.03
www.MonolithicPower.com
9/5/2014
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
1

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