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
LEDs from an 85VAC to 265VAC line. It is also
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.
TYPICAL APPLICATION
MP4050
Non-Isolated, High Brightness,
LED Driver
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.
MP4050 Rev.1.03
www.MonolithicPower.com
1
9/19/2019
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2019 MPS. All Rights Reserved.
