EB1112

EV4056-K-00A
198VAC~265VAC/50Hz, 48V/340mA
Low Cost, Non-isolated with Active PFC
TRIAC Dimmable LED Driver Evaluation Board
The Future of Analog IC Technology
DESCRIPTION
FEATURES
The EV4056-K-00A Evaluation Board is
designed to demonstrate the capabilities of
MP4056. The MP4056 is a non-isolated, TRIAC
dimmable LED controller with active PFC and
excellent dimming performance.

It works in boundary conduction mode for
reducing the MOSFET and Diode switching
losses. Its adaptive dimmer type detection and
phase-cut-based dimming control can achieve
good dimmer compatibility and deep dimming
range.
The EV4056-K-00A is typically designed for
driving a 16W TRIAC dimmable LED bulb with
48VTYP, 340mA LED load from 198VAC to
265VAC, 50Hz.
The EV4056-K-00A has a cost effective BOM
and excellent efficiency. It 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; ZCD
pin short protection; overtemperature
protection etc.
ELECTRICAL SPECIFICATION
Parameter
Input Voltage
Output Voltage
LED Current
Output Power
Efficiency (full load)
Power Factor
THD
Symbol
Value
Units
VIN
VOUT
ILED
POUT
η
PF
THD
198 to 265
48
340
16.32
>88
>0.86
<37
VAC
V
mA
W
%












Adaptive Dimmer Type Detection and
Phase-Cut-Based Dimming Control
Good Dimmer Compatibility
Fast Start-Up without Perceptible Delay
Accurate Line & Load Regulation
High Power Factor
High Efficiency
Operates in Boundary Conduction Mode
Cycle-by-Cycle Current Limit
Winding Short-Circuit Protection
Output Over-Voltage Protection
Output Short-Circuit Protection
ZCD Pin Short Protection
Over-Temperature Protection
APPLICATIONS



Solid State Lighting
Industrial & Commercial Lighting
Residential 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.
%
EV4056-K-00A Rev.1.0
www.MonolithicPower.com
7/21/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
1
EV4056-K-00A – HIGH LINE VOLTAGE, 16W APFC DIMMABLE LED DRIVER
EV4056-K-00A EVALUATION BOARD
(L x W x H) 70.5mm x 26.5mm x 24mm
Board Number
MPS IC Number
EV4056-K-00A
MP4056GK
EVALUATION BOARD SCHEMATIC
R1
5.1K/1206
L1
1
2
LED-
1.8mH/0.35A
48V/340mA
2
4
C6
22nF/50V
3
R6
330/2W
1M/1%/0.25W
R5
D1
LED+
2
Q2
CEF05N65
650V/4.5A
GND
1
51
3
1
GND
D3
RLZTE-1118D
16.82V/10mA
1
2
L2
1.8mH/0.35A
L3
1.8mH/0.35A
R10
5.1K/1206
R8
C7
470nF/25V
GND
C4
1nF/630V
4
1N4148W
2
2
C1
330uF/63V
2
D2
STTH3R06S
600V/3A
GND
R7
1M/1%/0.25W
22nF/275V
C2
330uF/63V
R3
30K/1206
3
0.16mm*26Ts
200/2W
CX1
1
2
R4
2
2
Q1
SSN1N45BTA
450V/0.2A
1
1
LED+
1
1
C5
220nF/450V
1
Lm=800uH
0.27mm*2*125Ts
C3
100nF/400V
2
2
3
1
1
1
T1
EE20
2
R2
220/2W
DB1
DF06S
600V/1.5A
R9
5.1K/1206
2
1
D4
1N4148W
75V/0.15A
R11
5.6k/1%
R12
RV1
1k/1%
TVR10431
1
COMP
10
2
MULT
2
R14
3.3K/1%
1
3
N
GND
4
2
198-265VAC
C10
22uF/50V
1
L
5
ZCD
GND
VCC
NTC
DAMP
S
DIM
D
9
D5
1N4148WS
75V/0.15A
R13
4.3k/1%
1
1
F1
C8
2.2uF/10V
2
2
C9
4.7nF/50V
250V/2A
8
GND
7
6
GND
U1
MP4056GK
R16
1.1/1%/1206
R15
1.2/1%/1206
GND
Figure 1—Schematic
EV4056-K-00A Rev.1.0
www.MonolithicPower.com
7/21/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
2
EV4056-K-00A – HIGH LINE VOLTAGE, 16W APFC DIMMABLE LED DRIVER
PCB LAYOUT (SINGLE-SIDED)
Figure 2—Top Layer
Figure 3—Bottom Layer
EV4056-K-00A Rev.1.0
www.MonolithicPower.com
7/21/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
3
EV4056-K-00A – HIGH LINE VOLTAGE, 16W APFC DIMMABLE LED DRIVER
CIRCUIT DESCRIPTION
The EV4056-K-00A is configured in a singlestage Buck-boost topology and gets a cost
effective BOM. It achieves high power factor and
excellent TRIAC dimming performance.
F1, RV1, L2, L3, R9, R10, CX1 and DB1
compose the input stage. F1 fuses the AC input
to protect for the component failure or some
excessive short events. RV1 is used for surge
test. The diode rectifier DB1 rectifies the input
line voltage. L2, L3, R9, R10, CX1, L1, R1 and
C3 form the input EMI filter. Small bulk CBB
capacitor C3 is used for a low impedance path
for the switching current.
Diode D2 is the output rectifying diode. The
capacitors C1, C2 are the output filter. The
resistor R3 is placed as a dummy load to
consume the output power in open load condition.
The capacitor C4 is used to help improve the
high frequency EMI performance.
C5, R2 and R6 are used as a passive bleeder
which helps keep the TRIAC current above the
minimum holding current after TRIAC turns on.
Q1, C6, R5 associate with the control signal
DAMP compose the active damping circuit to
limit the inrush current caused by C3 at leading
edge dimmer turn on.
R7, R10, C9 provide sine wave reference for the
current control loop.
D4 and C10 are used to supply the power for
MP4056. A 22μF electrolytic capacitor C10 is
selected to maintain the supply voltage. At startup, C10 is charged up through Q1, D4 and the
internal charging circuit, when the VCC voltage
reaches VCCEN, the internal charging circuit
stops charging.
Then the power supply is
charged by Q1, D4 during the switching off time.
R4, C7, D1 and D3 are used for the gate driver of
the external MOSFET Q1. R8 is used to adjust
the driver capability for better EMI and small
power loss.
R11, R13 are used to detect the auxiliary winding
to get the transformer magnetizing current zero
crossing signal for realizing the boundary
conduction operation, and also monitor the
output OVP condition. The OVP voltage is set by
the divider ratio of R11, R13. R12 is used to limit
the current flow into ZCD pin. D5 is used to
clamp the negative voltage on ZCD Pin when
switch on.
R15, R16 are sensing resistors for current control.
The value of R5 and R16 set the output LED
current.
EV4056-K-00A Rev.1.0
www.MonolithicPower.com
7/21/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
4
EV4056-K-00A – HIGH LINE VOLTAGE, 16W APFC DIMMABLE LED DRIVER
EV4056-K-00A BILL OF MATERIALS
Qty
Ref
Value
2
C1,C2
330uF/63V
1
C3
100nF/400V
1
C4
1nF/630V
1
C5
220nF/450V
1
C6
22nF/50V
1
C7
470nF/25V
1
C8
2.2uF/10V
1
C9
4.7nF/50V
1
C10
22uF/50V
1
CX1
22nF/275V
2
D1,D4
1N4148W
1
D2
STTH3R06S
1
D3
RLZTE-1118D
4
D5
1N4148WS
1
DB1
DF06S
1
F1
SS-5-2A
3
L1,L2,
L3
1.8mH/0.35A
1
Q1
SSN1N45BTA
1
2
Q2
R1,R9,
R10
R2
1
Description
Electrolytic
Capacitor;63V
CBB;400V
Ceramic
Capacitor;630V;U2J
CBB;450V
Ceramic
Capacitor;50V;X7R
Ceramic
Capacitor;25V;X7R
Ceramic
Capacitor;10V;X7R
Ceramic
Capacitor;50V;X7R
Electrolytic
Capacitor;50V
X
Capacitor;275V;10%
Diode;75V;0.15A;
Diode;600V;3A
Zener
Diode;16.82V,10mA
Diode;75V;0.15A;
Package
Manufacturer
DIP
Jianghai
CD263-63V330
DIP
Panasonic
ECQE4104KF
1206
muRata
DIP
Fala
0603
muRata
GRM188R71H223KA01D
0603
TDK
GRM188R71E474KA12D
0603
muRata
GRM188R71A225KE15D
0603
TDK
GRM188R71H472KA01D
DIP
Jianghai
DIP
Carli
SOD-123
Diodes
1N4148W-7-F
SMC
MINIMEL
F
SOD-323
ST
STTH3R06S
Diode;600V;1.5A
SMD
Fuse;250V;2A
DIP
CEF05N65
Inductor;1.8mH;
3.3 Ohm;0.35A
N-Channel
Mosfet;450V
Mosfet;650V;4.5A
5.1kΩ
Manufactuer_P/N
GRM31A7U2J102JW31D
C222S224K31C000
CD281L-50V22
PX223K3IC39L270D9R
ROHM
RLZTE-1118D
Diodes
1N4148WS-7-F
Fairchild
COOPER
BUSSMANN
DF06S
SS-5-2A
DIP
Wurth
TO-92
Fairchild
TO-220F
MAXMEGA
Film Resistor;1%
1206
Yageo
220Ω/2W
Resistor;5%;2W
DIP
any
R3
30kΩ
Film Resistor;1%
1206
Yageo
2
R4,R7
1MΩ/0.25W
Resistor;1%;1/4W
DIP
any
1MΩ
2
R5
200Ω/2W
Resistor;5%;2W
DIP
any
200Ω/2W
2
R6
330Ω/2W
Resistor;5%;2W
DIP
any
330Ω/2W
1
R8
51Ω
Film Resistor;1%;
0603
Yageo
RC0603FR-0751RL
1
R11
5.6kΩ
Film Resistor;1%
0603
Yageo
RC0603FR-075K6L
1
R12
1kΩ
Film Resistor;1%;
0603
Yageo
RC0603FR-071KL
1
R13
4.3kΩ
Film Resistor;1%
0603
Yageo
RC0603FR-074K3L
1
R14
3.3kΩ
Film Resistor;1%
0603
Yageo
RC0603FR-073K3L
1
R15
1.2Ω
Film Resistor;1%
1206
Yageo
RC1206FR-071R2L
1
R16
1.1Ω
Film Resistor;1%
1206
Yageo
RC1206FR-071R1L
3
768772182
SSN1N45BTA
CEF05N65
RC1206FR-075K1L
510 Ohm/2W
RC1206FR-0730KL
EV4056-K-00A Rev.1.0
www.MonolithicPower.com
7/21/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
5
EV4056-K-00A – HIGH LINE VOLTAGE, 16W APFC DIMMABLE LED DRIVER
EV4056-K-00A BILL OF MATERIALS (continued)
Qty
Ref
Value
1
RV1
TVR10431
1
T1
EF20
1
U1
MP4056
Description
MOV
L=800uH;
Np:Naux=125:26
TRAIC Dimmable,
Offline LED Lighting
Controller
Package
Manufacturer
Manufactuer_P/N
DIP
TSK
TVR10431KSY
DIP
Emei
FX0408
MSOP10
MPS
MP4056GK-LF-Z R3
EV4056-K-00A Rev.1.0
www.MonolithicPower.com
7/21/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
6
EV4056-K-00A – HIGH LINE VOLTAGE, 16W APFC DIMMABLE LED DRIVER
TRANSFORMER SPECIFICATION
Electrical Diagram
EF20
1
125Ts
0.27mm*2
N1
2
3
26Ts
0.15mm*1
N2
4
Winding Start
Figure 4—Transformer Electrical Diagram
Winding Diagram
Pin Side
3Ts
2Ts
1T
Pin Side
N2
N1
Bobbin
Figure 5—Winding Diagram
EV4056-K-00A Rev.1.0
www.MonolithicPower.com
7/21/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
7
EV4056-K-00A – HIGH LINE VOLTAGE, 16W APFC DIMMABLE LED DRIVER
Winding Order
Winding No.
N1
N2
Tape Layer Number
1
2
3
Start & End
Magnet WireΦ (mm)
Turns
2→1
4→3
0.27mm * 2
0.15mm*1
125
26
Electrical Specifications
Electrical Strength
60 second, 50Hz, from Windings to CORE.
1000VAC
Inductance
Pins 2 - 1, all other windings open, measured at 50kHz,
0.1 VRMS
800uH±5%
Materials
Item
1
2
3
4
5
6
Description
Core: EF20, UI=2500±25%, ACME P4 or equivalent
Bobbin: EF20, 4+4PIN, REMOVE PIN6,7
Wire: Φ0.27mm, Φ0.15mm, 2UEW, CLASS F or equivalent
Tape: 6.5mm(W)×0.06mm(TH)
Varnish: JOHN C. DOLPH CO, BC-346A or equivalent
Solder Bar: CHEN NAN: SN99.5/Cu0.5 or equivalent
EV4056-K-00A Rev.1.0
www.MonolithicPower.com
7/21/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
8
EV4056-K-00A – HIGH LINE VOLTAGE, 16W APFC DIMMABLE LED DRIVER
EVB TEST RESULTS
Performance Data
Efficiency, PF and THD
f (Hz)
Vin(V)
Pin(W)
Vo(V)
50
198
210
220
230
240
250
260
265
18.44
18.47
18.48
18.51
18.53
18.57
18.61
18.62
47.00
47.00
47.00
47.00
47.00
47.00
47.00
47.00
Io(mA)
346
347
347
347
348
348
349
349
Po(W)
16.26
16.31
16.31
16.31
16.36
16.36
16.40
16.40
Efficiency(%)
88.19
88.30
88.25
88.11
88.27
88.08
88.14
88.09
PF
0.910
0.905
0.900
0.894
0.887
0.880
0.872
0.868
THD(%)
37.00
36.70
36.40
35.70
35.30
34.80
34.30
34.10
Dimming Compatibility (No flicker with these 26 different Dimmers)
Dimmer No.
Manufacturer
Part No.
Power Stage
Dimming Type
Imax (mA)
Imin (mA)
1
MIKA
433/4
60-400W
Leading
349.1
67
2
Busch
2250U
600W
Leading
349.2
33
3
Berker
283010
60-400W
Leading
348.6
43.1
4
JUNG
225 NV DE
20-500W/VA
Leading
348.7
26.7
5
Berker
286610
20-500W
Leading
349
39.8
6
EMC
PROP400U
40-400W
Leading
347.7
37.6
7
Busch
2247U
500W/VA
Leading
348.4
43.9
8
Busch
2200..
60-400W
Leading
348.1
49.6
9
JUNG
225 NV DE
20-500W/VA
Leading
349.4
43.7
10
JUNG
266 GDE
60-600W
Leading
348.9
36.2
11
Berker
2875
60-600W
Leading
348.9
31.7
12
Berker
2819
60-400W
Leading
348.4
75
13
MIKA
433
60-300
Leading
348.1
70
14
GIRA
0300 00/I01
60-400W
Leading
347.9
68
15
TELLER
40600RL
40-600W
Leading
347.7
37.6
16
LICHTREGLER
T46s
20~315W
Trailing
355
298
17
Busch
6513 U-102
420W/VA
Trailing
356.2
26.4
18
MIKA
433 HAB
20-315W
Trailing
356.1
23.7
EV4056-K-00A Rev.1.0
www.MonolithicPower.com
7/21/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
9
EV4056-K-00A – HIGH LINE VOLTAGE, 16W APFC DIMMABLE LED DRIVER
19
MIKA
EIM-585
20-300W
Trailing
267.2
1.3
20
Busch
6519U
550W/VA
Trailing
355.6
25.8
21
JUNG
225 TDE
20-525W
Trailing
354.7
21.9
22
SIEMENS
5TC8 284
20-600W
Trailing
355.1
21.3
23
JUNG
254 UDIE 1
50-420W/VA
Trailing
342.3
37
24
Berker
286110
50-420W
Trailing
353.9
37.5
25
MIKA
433HAB
20-315W
Trailing
333.1
25.5
26
LUMEO ECO
T46.03
15-150W
Trailing
354.5
31.8
Electric Strength Test
Input and output was shorted respectively. 3750VAC/50Hz sine wave applied between input and output
for 1min, and operation was verified.
Surge Test
Line to Line 500V surge testing was completed according to IEC61547.
Input voltage was set at 230VAC/50Hz. Output was loaded at full load and operation was verified
following each surge event.
Surge Level
(V)
Input Voltage
(VAC)
Injection Location
Injection Phase
(°)
Test Result
(Pass/Fail)
500
-500
230
230
L to N
L to N
90
270
Pass
Pass
EV4056-K-00A Rev.1.0
www.MonolithicPower.com
7/21/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
10
EV4056-K-00A – HIGH LINE VOLTAGE, 16W APFC DIMMABLE LED DRIVER
Thermal Test (worst case with/without dimmer)
Diode D2: 60.8℃
Without dimmer
Damping Resistor R5: 84℃
Leading edge dimmer with 50% turn on cycle
Transformer: 62.3℃
Without dimmer
MOSFET Q2: 74.2℃
Trailing edge dimmer with 90% turn on phase
EV4056-K-00A Rev.1.0
www.MonolithicPower.com
7/21/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
11
EV4056-K-00A – HIGH LINE VOLTAGE, 16W APFC DIMMABLE LED DRIVER
EVB TEST RESULTS
Performance waveforms are tested on the evaluation board.
VIN=230VAC/50Hz, 15LEDs in series, ILED=340mA, VOUT=48V.
Line Regulation
Efficiency vs. VIN
VIN=(198-265)VAC/50Hz, Full Load
PF vs. VIN
VIN=(198-265)VAC/50Hz, Full Load
VIN=(198-265)VAC/50Hz, Full Load
1
89.0
0.5
0.4
88.0
0.2
87.0
0.1
86.0
0
-0.1
85.0
-0.2
84.0
-0.3
0.95
0.9
PF
0.3
0.8
0.75
83.0
-0.4
-0.5
198 208 218 228 238 248 258
VIN (V)
VIN=(198-265)VAC/50Hz, Full Load
OUTPUT CURRENT (mA)
400
35
30
25
20
15
10
198 208 218 228 238 248 258
VIN (V)
Dimming Curve
Conducted EMI, L-Line
VIN=230VAC/50Hz, Full Load,
with Different Dimmers
VIN=230VAC/50Hz,
RBW=9kHz, MT=20ms
120
110
350
300 Leading Edge Dimmer
200
150
100
50
0
CDN Test
VIN=230VAC/50Hz,
RBW=9kHz, MT=20ms
VIN=230VAC/50Hz,
RBW=120kHz, MT=1ms
100 kHz
1 MHz
120
10 MHz
EN55015Q
SGL
2 AV 90
CLRWR
TDS
TDS
70
60
50
6DB
EN55015A
40
30
20
10
0
9kHz
30 MHz
100 MHz
SSGL
1 PK
100
CLRWR
2 AV 90
CLRWR
TTDE
80
80
70
70
60
60
6DB
EN55015A
EN55015A
CDN_QP
6DB
50
40
40
30
30
20
20
10
10
0
0
9kHz
SGL
110
1 PK
100
CLRWR
50
10 MHz
2 AV 90
CLRWR
20 40 60 80 100 120 140 160
Conducted EMI, N-Line
120
1 MHz
80
250
0
100 kHz
EN55015Q
1 PK
100
CLRWR
Trailing Edge Dimmer
40
110
0.7
198 208 218 228 238 248 258
VIN (V)
82.0
198 208 218 228 238 248 258
VIN (V)
THD vs. VIN
0.85
30 MHz
30 MHz
300 MHz
EV4056-K-00A Rev.1.0
www.MonolithicPower.com
7/21/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
12
EV4056-K-00A – HIGH LINE VOLTAGE, 16W APFC DIMMABLE LED DRIVER
EVB TEST RESULTS (continued)
Performance waveforms are tested on the evaluation board.
VIN=230VAC/50Hz, 15LEDs in series, ILED=340mA, VOUT=48V.
Steady State
Steady State
Steady State
VIN=230VAC/50Hz, Full Load
VIN=230VAC/50Hz, Full Load
VIN=230VAC/50Hz, Full Load
VMULT
1V/div.
VMULT
500mV/div.
VMULT
500mV/div.
VCC
10V/div.
VCOMP
1V/div.
VZCD
2V/div.
IOUT
200mA/div.
VS
500mV/div.
VDAMP
10V/div.
IIN
100mA/div.
VIN Start-Up
VIN=230VAC/50Hz, Full Load
VMULT
1V/div.
VCC
10V/div.
VDAMP
10V/div.
IOUT
200mA/div.
Dimming Performance
Max Dmming on Phase
with Leading-Edge Dimmer
VIN=230VAC/50Hz
Min Dmming on Phase
with Leading-Edge Dimmer
VIN=230VAC/50Hz
VMULT
1V/div.
VMULT
1V/div.
VDAMP
10V/div.
VDAMP
10V/div.
VCOMP
2V/div.
VCOMP
2V/div.
IIN
200mA/div.
IIN
200mA/div.
Dimming Performance
Dimming Performance
OVP
Max Dmming on Phase
with Trailing-Edge Dimmer
VIN=230VAC/50Hz
Min Dmming on Phase
with Trailing-Edge Dimmer
VIN=230VAC/50Hz
LED Load Open
VIN=230VAC/50Hz, Full Load
VCOMP
1V/div.
VMULT
1V/div.
VMULT
1V/div.
VDAMP
10V/div.
VDAMP
10V/div.
VCOMP
2V/div.
IIN
200mA/div.
Dimming Performance
VCOMP
2V/div.
IIN
200mA/div.
VCC
10V/div.
VS
500mV/div.
VZCD
2V/div.
EV4056-K-00A Rev.1.0
www.MonolithicPower.com
7/21/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
13
EV4056-K-00A – HIGH LINE VOLTAGE, 16W APFC DIMMABLE LED DRIVER
EVB TEST RESULTS (continued)
Performance waveforms are tested on the evaluation board.
VIN=230VAC/50Hz, 15LEDs in series, ILED=340mA, VOUT=48V.
SCP
ZCD PIN Short Protection
LED+ Short to LED- and then Recovery
VIN=230VAC/50Hz, Full Load
Short ZCD Pin then Start Up
VIN=230VAC/50Hz, Full Load
VCOMP
1V/div.
VCC
10V/div.
VS
500mV/div.
VCOMP
1V/div.
VCC
10V/div.
VS
500mV/div.
VZCD
2V/div.
VZCD
50mV/div.
EV4056-K-00A Rev.1.0
www.MonolithicPower.com
7/21/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
14
EV4056-K-00A – HIGH LINE VOLTAGE, 16W APFC DIMMABLE LED DRIVER
QUICK START GUIDE
1. Preset AC Power Supply to 198VAC  VIN 265VAC.
2. Turn Power Supply off.
3. Connect the LED string between “LED+” (anode of LED string) and “LED-” (cathode of LED string).
4. Connect Power Supply terminals to AC VIN terminals (“L” and “N”) as shown on the board.
5. Turn AC Power Supply on after making connections.
NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third
party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not
assume any legal responsibility for any said applications.
EV4056-K-00A Rev.1.0
www.MonolithicPower.com
7/21/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
15
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