EV4033-K-00A
198VAC~265VAC/50Hz, 24V/420mA
Primar y-side-control wi th Active PFC
Off-line Dimmable LED Driver Evaluation Board
EV4033-K-00A Rev.1.0 www.MonolithicPower.com 1
7/15/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The EV4033-K-00A Evaluation Board is
designed to demonstrate the capabilities of
MP4033 with ripple suppressor. The MP4033 is
a primary-side-control offline LED lighting
controller which can achieve high power factor
and accurate current for Triac dimmable LED
lighting application. Its adaptive dimmer type
detection and phase-cut-based dimming control
can achieve good dimmer compatibility and
deep dimming range.
It works in boundary conduction mode for
reducing the MOSFET and Diode switching
losses. The new ripple suppressor can
obviously reduce the output current ripple and
escape the flicker or shimmer happened in
deep dimming situation with a little influence in
efficiency.
The EV4033-K-00A is typically designed for
driving a 10W Triac dimmable LED bulb with
24V
TYP
, 420mA LED load from 198VAC to
265VAC, 50Hz.
The EV4033-K-00A has an excellent efficiency
and meets IEC61547 surge immunity,
IEC61000-3-2 Class C harmonics and
EN55015 conducted EMI requirements. It has
multi-protection function as over-voltage
protection; winding short circuit protection;
output short-circuit protection, cycle by cycle
current limit, etc.
ELECTRICAL SPECIFICATION
Paramete
Symbol
alue Units
Input Voltage V
IN
198 to 265 VAC
Output Voltage V
OUT
24 V
LED Current I
LED
420 mA
Output Power P
OUT
10 W
Efficiency (full load) η >83 %
Power Factor PF >0.8
THD THD <28 %
FEATURES
• Fast Start up
• Adaptive Dimmer Type Detection and
Phase-Cut-Based Dimming Control
• Triac Dimmable, with good dimmer
compatibility and deep dimming range
• The dimming curve meets standard SSL6
• Direct PWM Dimming
• Real current control without secondary-
feedback circuit
• Programmable Current Fold-back to
Prolong the LED lifetime (NTC)
• Accurate Line & Load Regulation
• High power factor over 198VAC to 265VAC
• Boundary conduction mode improves
efficiency
• Input UVLO
• Cycle-by-cycle current limit
• Over-voltage protection (OVP)
• Output Short-circuit protection (SCP)
• Winding short circuit protection
• ZCD Pin short circuit protection
• Over-temperature protection (OTP)
• Fit inside A19 bulb enclosure
APPLICATIONS
• Solid State Lighting
• Industrial & Commercial Lighting
• Residential Lighting
ll MPS parts are lead-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 o
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.