MP4050

Non-Isolated, High Brightness,

LED Driver

MP4050 Rev.1.02

www.MonolithicPower.com

1

1/18/2016

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© 2016 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP4050 is a constant current LED driver

integrated with an internal 500V MOSFET. It is

specifically designed for energy efficient and

low cost LED bulk replacement applications.

MP4050 is designed to drive high-brightness

useable under DC input voltage. The accurate

output LED current is achieved by an averaging

internal current feedback loop. Constant LED

current is delivered quietly by switching the

internal MOSFET at a frequency regulated

above 22kHz.

MP4050 can be directly powered by the high

input voltage. An internal high voltage current

source

regulates

supply

voltage

without

external circuitry. MP4050 features various

protections like Thermal Shutdown (TSD), VCC

Under Voltage Lockout (UVLO), Open Lamp

Protection and Short Lamp Protection. All of

there features make MP4050 an ideal solution

for simple, off-line and non-isolated LED

applications.

MP4050 is available in the TSOT23-5 and

SOIC8 packages.

FEATURES

 Constant Current LED Driver

 500V/7.2Ω MOSFET integrated

 Low Vcc Operating Current

 Maximum frequency limit

 Audible noise restrain

 Internal High Voltage Current Source

 Internal 200ns Leading Edge Blanking

 Thermal Shutdown (auto restart with

Hysteresis)

 VCC Under Voltage Lockout with Hysteresis

(UVLO)

 Open Lamp Protection

 Short Lamp Protection

APPLICATIONS

 AC/DC or DC/DC LED driver application

 General Illumination

 Industrial Lighting

 Automotive/Decorative LED 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