MP4026

Primary-Side-Control,

Offline LED Controller with Active PFC

MP4026 Rev. 1.1

www.MonolithicPower.com

1

9/9/2015

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

© 2015 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP4026 is a primary-side-control, offline

LED controller that achieves high-power factor

and accurate LED current for isolated, single-

power-stage lighting applications in a tiny

TSOT23-6 package. It is the next generation of

the successful MP4021A. The proprietary real-

current-control method accurately controls LED

current from primary-side information with good

line and load regulation. The primary-side-control

eliminates

the

secondary-side

feedback

components and the opto-coupler to significantly

simplify LED-lighting-system design.

The MP4026 integrates power-factor correction

and works in valley switching mode to reduce

MOSFET switching losses.

The MP4026’s multiple protection features

greatly enhance system reliability and safety.

These features include over-voltage protection,

short-circuit protection, primary-side over-current

protection, brown out protection, cycle-by-cycle

auto-restart over-temperature protection.

FEATURES

• Real-Current Control without Secondary-

Feedback Circuit

• Good Line/Load Regulation

• High Power Factor (≥0.9) over Universal

Input Voltage

• Valley Switching Mode for Improved

Efficiency

• Brown-Out Protection

• Over-Voltage Protection

• Short-Circuit Protection

• Over-Temperature Protection

• Primary-Side Over-Current Protection

• Cycle-by-Cycle Current Limit

• Input UVLO

• Available in TSOT23-6

APPLICATIONS

• 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.

TYPICAL APPLICATION CIRCUIT

Mult

COMP

GND

VCC

GATE

CS/ZCD