MP4034

Offline LED Driver

MP4034 Rev. 1.02

www.MonolithicPower.com

1

12/4/2013

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© 2013 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP4034 is an offline regulator that

provides accurate constant-current regulation.

The LED driver circuit design is simplified by

removing the opto-coupler and the secondary

feedback components.

The MP4034 has an integrated 700V MOSFET.

Its variable off-time control allows a flyback

converter

to

operate

in

discontinuous

conduction mode (DCM). The MP4034 also

features complete protection functions such as

VCC

under-voltage

lockout,

over-voltage

protection, over-temperature protection, and

open-loop protection.

The MP4034's variable switching frequency

provides natural spectrum shaping to smooth

the EMI signature, which can reduce the EMI

filter’s size and cost.

FEATURES

• Primary-Side–Control without Opto-coupler

or Secondary Feedback Circuit

• Precise Constant Current Regulation

• Integrated 700V MOSFET with Minimal

External Components

• Variable Off-Time and Peak-Current Control

• 550µA High-Voltage Current Source

• Up to 7W Output Power

• Over-Voltage Protection

• Over-Temperature Protection

• Open-Loop Protection

• Natural Spectrum Shaping for Improved

EMI Signature

• Low Cost and Simple External circuit

• SOIC8-7A Package

APPLICATIONS

• Offline LED Driver

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.

TYPICAL APPLICATION

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