MP4051

Non-isolated Solution

Offline LED Controller with Active PFC

MP4051 Rev. 1.01

www.MonolithicPower.com

1

1/21/2014

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2014 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP4051 is a non-isolated offline LED lighting

controller that achieves high power factor and

accurate LED current for single-stage PFC

lighting applications in a single SOIC8 package.

The MP4051 integrates power factor correction

and works in boundary conduction mode to

reduce the MOSFET switching losses.

The extremely low start-up current and quiescent

current reduces the total power consumption and

provides a high-efficiency solution for non-

isolated lighting applications.

The multi-protection features of MP4051 greatly

enhance system reliability and safety. The

MP4051 features over-voltage protection, short-

circuit protection, cycle-by-cycle current limiting,

protection.

FEATURES

• Unique Architecture for Superior Line

Regulation

• Achieve <1% Line and Load Regulation

• High Power Factor≥0.9 Over Universal Input

Voltage

• Boundary Conduction Mode improves

Efficiency

• Ultra-low (20µA) Start-up Current

• Low (1mA) Quiescent Current

• Input UVLO

• Cycle-by-cycle Current Limit

• Over-voltage Protection

• Short-circuit Protection

• Over-temperature Protection

• Available in an SOIC8 Package

APPLICATIONS

• Solid-state Lighting

• 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.

The MP4051 is under patent pending.

TYPICAL APPLICATION (HIGH-SIDE BUCK-BOOST TOPOLOGY)

EMI

Filter

MULT

COMP

GATE

GND

VCC

ZCD

CS

MP4051

FB

45

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3

28

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