EV4050A-S-00A
Universal Input, 40V/115mA
Off-line Non-isolated LED Driver
Evaluation Board
EV4050A-S-00A Rev.1.0 www.MonolithicPower.com 1
4/28/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP4050A is a constant current LED driver
with an integrated 500V MOSFET. It is
designed specifically for energy efficient and
low-cost LED bulb replacement applications.
The EV4050A-S-00A Evaluation Board is
designed to demonstrate the capabilities of
MP4050A as an off-line, non-isolated LED
driver which can load 40V/115mA LEDs in
universal input voltage (85VAC to 265VAC,
50Hz/60Hz).
The EV4050A-S-00A has an excellent
efficiency and meets IEC61000-4-5 surge
immunity and EN55015 conducted EMI
requirements. It has various protections, like
integrated thermal current foldback, VCC
under-voltage lockout (UVLO), open LED
protection (OLP), short-circuit protection (SCP),
and over-temperature protection (OTP). All of
there features make MP4050A an ideal solution
for simple, off-line and non-isolated LED
applications.
ELECTRICAL SPECIFICATION
Parameter Symbol Value Units
Input Voltage V
IN
85 to 265 VAC
Output Voltage V
OUT
40 V
Output Current I
OUT
115 mA
Efficiency η >85 %
FEATURES
Constant Current LED Driver
Integrated 500V/8Ω MOSFET
Low VCC Operating Current
Maximum Frequency Limit
Audible Noise Restrain
Internal High-Voltage Current Source
Internal 200ns Leading Edge Blanking
Integrated Thermal Current Foldback
Thermal Shutdown (Auto Restart with
Hysteresis)
VCC Under Voltage Lockout with Hysteresis
Open LED Protection
Short Circuit Protection
Auto-Restart Function
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.
Warning: Although this board is designed to satisfy safety
requirements, the engineering prototype has not been
agency approved. Therefore, all testing should be performed
using an isolation transformer to provide the AC input to the
prototype board.