MP4056

TRIAC Dimmable, Non-isolated

Offline LED Controller with Active PFC

MP4056 Rev.1.01

www.MonolithicPower.com

1

11/9/2016

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© 2016 MPS. All Rights Reserved.

DESCRIPTION

The

MP4056

is

a

non-isolated,

TRIAC-

dimmable, offline LED controller with active

PFC. It outputs an accurate LED current for an

non-isolated lighting application with a single-

stage converter.

The

MP4056

implements

power-factor

correction and works in boundary-conduction

mode to reduce MOSFET switching losses.

The adaptive dimmer type detection and phase-

cut-based

dimming

control

achieves

good

dimmer compatibility and deep dimming range.

The MP4056 has an integrated charging circuit

at the supply pin for fast start-up without a

perceptible delay.

With the unique control of DIM, the MP4056

supports color temperature and brightness

control for warm sunset dimming application.

The MP4056 has multiple protections that

greatly enhance system reliability and safety,

including output over-voltage protection, output

short-circuit protection, over-current protection,

programmable

thermal

fold-back

(MSOP10/SOIC14),

ZCD

pin

short

circuit

protection, supply-pin under-voltage lockout,

and over-temperature protection.

All fault protections feature auto-restart.

The MP4056 is available in SOIC-8/MSOP-

10/SOIC-14 package.

FEATURES

 Adaptive Dimmer Type Detection and

Phase-Cut-Based Dimming Control

 Good Dimmer Compatibility and Deep

Dimming Range

 PWM Input Analog Dimming

 Fast Start-Up without Perceptible Delay

 Programmable Current Fold-back to

Prolong the LED lifetime (NTC)

 Color Temperature and Brightness Control

for Warm Sunset Dimming application

 Accurate Line & Load Regulation

 High Power Factor

 Operates in Boundary Conduction Mode

 Cycle-by-Cycle Current Limit

 Over-current Protection

 Output Over-Voltage Protection

 Output Short-Circuit Protection

 ZCD Pin Short-Circuit Protection

 Over-Temperature Protection

 Available in SOIC-8/MSOP-10/SOIC-14

Package

APPLICATIONS

 Solid-State Lighting up to 50W

 Industrial and Commercial Lighting

 Residential Lighting

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

MPS green status, please visit MPS website under Quality Assurance.

“MPS” and “The Future of Analog IC Technology” are Registered Trademarks

of Monolithic Power Systems, Inc.