EV4021A-S-00T
Universal input, 15W
Primary-side-control with Active PFC
T8 Isolated LED Driver Evaluation Board
The Future of Analog IC Technology
DESCRIPTION
FEATURES
The EV4021A-S-00T Evaluation Board is
designed for driving a nominal LED string
voltage of 50V at 0.3A from universal input
(85VAC-265VAC). The LED driver uses the
MP4021A.
•
The MP4021A is a primary-side-control offline
LED lighting controller which can achieve high
power factor and accurate LED current for an
isolate lighting application in a single stage
converter. It works in boundary conduction
mode for reducing the MOSFET and Diode
switching losses.
The EV4021A-S-00T has a low profile and high
efficiency, and meets IEC61547 surge immunity,
IEC61000-3-2 Class C harmonics and
EN55015 conducted EMI requirements. It has
multi-protection function such as over-voltage
protection, short-circuit protection, cycle by
cycle current limit, 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
85-265
50
300
15
>85
>0.9
<20
VAC
V
mA
W
%
•
•
•
•
•
•
•
•
•
Low profile design, <10mm component
height
Unique architecture for superior line
regulation
High power factor>0.9 over universal input
voltage
Boundary conduction mode improves
efficiency
Input UVLO
Cycle-by-cycle current limit
Over-voltage protection (OVP)
Short-circuit protection (SCP)
Over-temperature protection (OTP)
Fit inside T8 tube enclosure
APPLICATIONS
•
•
•
•
T8 Tube Replacement
Solid State Lighting
Industrial & Commercial Lighting
Residential Lighting
All 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 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.
%
EV4021A-S-00T Rev.1.05
www.MonolithicPower.com
2/20/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
1
EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
EV4021A-S-00T EVALUATION BOARD
Board Number
MPS IC Number
EV4021A-S-00T
MP4021GS-A
EVALUATION BOARD SCHEMATIC
R3
5.1k
CY2
100pF/250VAC
L4
1mH
R15
499k
C6
10nF/630V
C1
100nF/400V
D3
R4
1M
R10
10M
R6
510k
1
L3
1mH
L2
1mH
1
R5
8.2k
2
MULT
COMP
RV1
TVR10431
F1
250V/2A
C3
C4
100pF
ZCD
FB
VCC
GND
7
C5
R11
20
R17
5.1k
GATE
U1
MP4021A
CS
SMK0870
6
D1
BZT52C274
2
R18
25.5k
8
Q1
3
L1
4mH
CON2
LED-
CY1
2.2nF/250VAC
R7
10
R2
5.1k
C2
100pF
L5
C10
T1
D2
ES1D
R1
LED+
STTH2R06
600V/2A R20
499k
Lp=0.918mH
CX1
5.1k
Output: 50V/300mA
C9
7Ts
1N4007
C8
68pF
D6
45Ts
18Ts
BD1
DF06S
R19
100
5
C7
D4
1N4148W 10pF
R12
280
R13 R14
0.4
NS
R9
R16
1
R8
1k
D5
1N4148W
CON1
Figure1—Schematic
EV4021A-S-00T Rev.1.05
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2/20/2013
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2
EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
PRINTED CIRCUIT BOARD LAYOUT
Figure 2—Top Layer
Figure 3—Bottom Layer
EV4021A-S-00T Rev.1.05
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3
EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
CIRCUIT DESCRIPTION
The EV4021A-S-00T is configured in a singlestage Flyback topology, it uses primary-sidecontrol which can mostly simplify the schematic
and get a cost effective BOM. It can also achieve
high power factor and accurate LED current.
F1, CX1, L1, L2, L3, L4 C1 and BD1 compose
the input stage. F1 fuses the AC input to protect
for the component failure or some excessive
short events. CX1, L1, L2, L3, L4, R1, R2 and R3
associated with CY11, CY12 form the EMI filter
which can meet the requirement for universal
input. The diode rectifier BD1 rectifies the input
line voltage. Small bulk CBB capacitor C1 is used
for a low impedance path for the primary
switching current, to maintain high power factor,
the capacitance of C1 should be selected with
low value.
R4, R5, C2 provide sine wave reference for the
primary peak current to get an active PFC
function. The divided voltage should be lower
than the max voltage rating of MULT pin.
R6, C3, C4, D1, R7, D2 are used to supply the
power for MP4021A. A 10μF bulk capacitor C3 is
selected to maintain the supply voltage. The
small decoupling cap C7 is used for reducing the
noise. Zener diode D1 is used to clamp the max
voltage for VCC at OVP condition. At start-up, C3
is first charged up by the start resistor R6 from
the line voltage, when the VCC voltage passes
the UVLO threshold the IC starts to work and the
gate begins to switch, then the VCC power
supply is taken over by the auxiliary winding
through R7, D2.
R17, R18, D4, C7 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 R17, R18. D4, C7 are used
to reduce the noise by clamping the negative
voltage and decoupling the high frequency du/dt
influence on ZCD pin.
R8, R9, D5 are used to monitor the OCP
condition. The primary-side OCP point is set by
the forward voltage of D5 and the divider ratio of
R8 and R9.
R13, R14, R16 are primary sensing resistors for
primary side current control. The value of R13,
R14 and R16 sets the output LED current. R10
and R12 form a feedforward from input line
voltage to optimize the line regulation. C6, R15,
D3 are used to damp the leakage inductance
energy so the drain voltage can be suppressed at
a safe level.
Diode D6 rectifies the secondary winding voltage
and the capacitor C9, C10 are the output filter.
The resistor R20 is placed as pre-load to limit the
output voltage rise too high in open load
condition.
EV4021A-S-00T Rev.1.05
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2/20/2013
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© 2013 MPS. All Rights Reserved.
4
EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
EV4021A-S-00T BILL OF MATERIALS
Qty
1
Ref
BD1
Value
DF06S
1
C1
100nF/630V
2
C2
C4
100pF
1
C3
10μF/50V
1
C5
2.2μF
1
C6
10nF/630V
1
C7
10pF
1
C8
68pF
2
C9
C10
100μF/100V
1
CX1
0.1μF/275VAC
1
1
CY1
CY2
2.2nF
100pF
1
D1
BZT52C27
1
1
D2
D3
D4
D5
D6
ES1D
1N4007
2
1
Description
BRIDGE, 600V, 1A
CBB, 630V
Ceramic Capacitor,
50V, COG
Electrolytic Capacitor,
50V
Ceramic Capacitor,
16V, X5R
Ceramic Capacitor,
630V, X7R
Ceramic Capacitor,
50V
Ceramic Capacitor,
630V, COG
Electrolytic Capacitor,
100V
Film Capacitor, 275V,
10%
Y Capacitor, 250VAC
Y Capacitor, 250VAC
Zener Diode,
27V, 2mA/500Mw
Diode, 200V, 1A
Diode, 1000V, 1A
1N4148W
Diode, 75V, 0.15A
STTH2R06
Diode, 600V, 2A
Package
SMD
Manufacture
Fairchild
DIP
Fala
0603
Murata
DIP
Jianghai
0805
TDK
C2012X5R1C225K
1206
TDK
C3216X7R2J103K
0603
TDK
C1608C0G1H100D
1206
Murata
DIP
Jianghai
DIP
Carli
DIP
DIP
SOD123
SMA
DO-41
SOD123
DO-41
hongke
hongke
JNK12E222MY02N
JNK09B101KL02N
Diodes
BZT52C27
Taiwan semi
Diodes
Diodes
Manufacture_PN
DF06S
C312J104K63CC30
GRM1885C1H101JA01
CD287-50V10
GRM31A7U2J680JW31D
CD287-100V100
PX104K3ID19L270D9R
ES1D
1N4007
1N4148W
STTH2R06
SS-5-2A
DIP
COOPER
BUSSMANN
4mH
Common
Inductor,
4mH, 0.25A
DIP
Emei
TP4M4.0-00
L2,
L3,
L4
1mH
Inductor,
0.29A
DIP
Wurth
744743102
1
L5
300μH
DIP
Emei
TP4U300-00
1
Q1
SMK0870F
TO220F-3L
AUK
SMK0870F
1
F1
250V/2A
1
L1
3
3
1
1
1
R1
R2
R3
R4
R5
R6
Common
300μH, 1A
1mH,
6Ω,
Inductor,
N-MOSFET, 700V, 8A
5.1kΩ
Film RES, 1%, 1/4W
1206
LIZ
1MΩ
8.2kΩ
510kΩ
Film RES, 1%, 1/4W
Film RES, 1%, 1/8W
Film RES, 1%, 1/2W
DIP
0603
DIP
Any
Yageo
Any
SS-5-2A
CR06T05NJ5K1
1MΩ
RC0603FR-078K2L
510kΩ
EV4021A-S-00T Rev.1.05
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2/20/2013
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© 2013 MPS. All Rights Reserved.
5
EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
EV4021A-S-00T BILL OF MATERIALS (continued)
Qty
1
Ref
R7
Value
10Ω
Description
Film RES, 5%, 1/4W
Package
1206
Manufacture
Yageo
Manufacture_PN
RC0603JR-0710RL
1
R8
1kΩ
Film RES, 1%, 1/8W
0603
Yageo
RC0603FR-071KL
1
1
1
1
1
1
330Ω
10MΩ
20Ω
280Ω
NS
0.4Ω
Film RES, 1%, 1/8W
Film RES, 1%, 1/4W
Film RES, 1%, 1/8W
Film RES, 1%, 1/8W
0603
DIP
0603
0603
Yageo
Any
Yageo
Yageo
RC0603FR-07330RL
10MΩ
RC0603FR-0720RL
RC0603FR-07280RL
Film RES, 1%, 1/4W
1206
Yageo
RC0603FR-070R4L
499kΩ
Film RES, 1%, 1/4W
1206
Yageo
RC0603FR-07499KL
1
1
1
1
1
1
R9
R10
R11
R12
R13
R14
R15
R20
R16
R17
R18
R19
RV1
JP1
Yageo
Yageo
Yageo
Yageo
TKS
Any
RC1206FR-071RL
RC1206FR-075K1L
RC1206FR-0725K5L
RC1206FR-07100RL
TVR10431KSY
TDK
SRL1422EL-X06V014
1
T1
1206
0603
0603
1206
DIP
DIP
SRL142
2EL
SRL142
2EL
TDK
SRL1422EL-X14V014
SOIC8
MPS
MP4021GS-A
2
1
U1
1Ω
5.1kΩ
25.5kΩ
100Ω
TVR10431KSY
Short
SRL1422ELX06V014
SRL1422ELX14V014*
MP4021A
Film RES, 1%, 1/4W
Film RES, 1%, 1/8W
Film RES, 1%, 1/8W
Film RES, 1%, 1/4W
MOV, 430V
Jumper Wire
NP:NS:NAUX = 45:18:7,
LP=0.97mH
NP:NS:NAUX = 45:15:7,
LP=0.906mH
Offline LED Lighting
Controller
* New production announcement for same application, please ask transformer vendor for detailed spec.
EV4021A-S-00T Rev.1.05
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2/20/2013
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© 2013 MPS. All Rights Reserved.
6
EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
TRANSFORMER SPECIFICATION
Electrical Diagram
Figure 4—Transformer Electrical Diagram
Notes:
Winding Diagram
Figure 5—Winding Diagram
EV4021A-S-00T Rev.1.05
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EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
Winding Order
Winding No.
N P1
NS
N P2
N PD
Tape Layer Number
1
2
1
3
Start & End
7→2
5→6
1→7
3→4
Magnet WireΦ(mm)
0.2
0.23 (T.I.W)
0.2
0.2
Turns
30.5
18
14.5
7
Electrical Specifications
Electrical Strength
Primary Inductance
Primary
Leakage
Inductance
60 second, 60Hz, from Pins 1, 2, 3, 4, 7 to 5, 6
Pins 1- 2, all other windings open, measured at 10kHz, 1 VRMS
3000VAC
0.918mH±15%
Pins 1-2 with all other pins shorted, measured at 10kHz. 1 VRMS
24μH
Materials
Item
1
2
3
4
5
6
7
8
Description
Core: SRL1422EL or equivalent
Bobbin: SRL1422EL, 7PINs, T-375J, 150, 94V-0
Wire: Φ0.2mm, Polyurethane Enameled Copper Wire or equivalent
Wire: Φ0.23mm, TRIPLE INSULATION WIRE or equivalent
Tape: 0.05mm, 1318-1 or 1350F-1 or equivalent
Margin Tape: 1.0mm(W), 44D-A or equivalent
Adhesive: 400-36 or equivalent
Solder: optional
EV4021A-S-00T Rev.1.05
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© 2013 MPS. All Rights Reserved.
8
EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
EVB TEST RESULTS
Performance Data
Efficiency and PF vs. Input Voltage
f
(Hz)
VIN
(VAC)
PIN
(W)
VOUT
(V)
IOUT
(A)
POUT
(W)
Efficiency
(%)
PF
THD
(%)
60
85
90
100
110
120
130
135
17.25
17.13
16.92
16.79
16.69
16.63
16.61
50.0
50.0
50.0
49.9
49.9
49.9
49.9
0.295
0.295
0.294
0.293
0.293
0.292
0.292
14.75
14.75
14.70
14.62
14.62
14.57
14.57
85.5
86.1
86.9
87.1
87.6
87.6
87.7
0.996
0.995
0.994
0.993
0.991
0.989
0.988
7.6
7.6
8.1
8.5
8.8
9.2
9.3
f
(Hz)
VIN
(VAC)
PIN
(W)
VOUT
(V)
IOUT
(A)
POUT
(W)
Efficiency
(%)
PF
THD
(%)
50
185
190
200
210
220
230
240
250
260
265
16.65
16.66
16.70
16.76
16.83
16.90
16.98
17.08
17.17
17.22
49.9
49.9
49.9
49.9
49.9
49.9
49.9
49.9
49.9
49.9
0.292
0.292
0.293
0.293
0.294
0.294
0.294
0.295
0.296
0.296
14.57
14.57
14.62
14.62
14.67
14.67
14.67
14.72
14.77
14.77
87.5
87.5
87.5
87.2
87.2
86.8
86.4
86.2
86.0
85.8
0.973
0.971
0.966
0.961
0.955
0.949
0.942
0.935
0.928
0.924
11.2
11.3
11.4
11.5
11.5
11.6
11.7
11.8
11.9
12.0
EV4021A-S-00T Rev.1.05
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2/20/2013
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© 2013 MPS. All Rights Reserved.
9
EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
Harmonic Data
The design passes IEC61000-3-2 Class C requirement, and its THD is less than 20% with universal
input.
VIN
(VAC/Hz)
PIN
(W)
IIN
(mA)
THD
(%)
115/60
17.5
Active Input Power ≤ 25W
Class C Limit
(mA)
153.68
8.4
Measured Data
(mA)
Test Result
(Pass/Fail)
153.05
11.31
1.69
2.89
2.94
2.67
2.21
1.67
1.09
0.52
0.28
0.41
0.47
0.41
0.29
0.06
0.22
0.42
0.49
0.48
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Harmonic
Order
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
119.0000
66.5000
35.0000
17.5000
12.2500
10.3654
8.9833
7.9265
7.0921
6.4167
5.8587
5.3900
4.9907
4.6466
4.3468
4.0833
3.8500
3.6419
3.4551
EV4021A-S-00T Rev.1.05
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© 2013 MPS. All Rights Reserved.
10
EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
VIN
(VAC/Hz)
PIN
(W)
IIN
(mA)
THD
(%)
230/50
17.85
Active Input Power ≤ 25W
Class C Limit
(mA)
80.89
13.06
Measured Data
(mA)
Test Result
(Pass/Fail)
80.15
9.58
1.81
2.12
1.98
1.58
1.11
0.64
0.32
0.32
0.33
0.31
0.11
0.32
0.41
0.29
0.36
0.38
0.16
0.25
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Harmonic
Order
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
60.6900
33.9150
17.8500
8.9250
6.2475
5.2863
4.5815
4.0425
3.6170
3.2725
2.9879
2.7489
2.5453
2.3697
2.2169
2.0825
1.9635
1.8574
1.7621
EV4021A-S-00T Rev.1.05
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2/20/2013
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© 2013 MPS. All Rights Reserved.
11
EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
Electric Strength Test
Primary circuit to secondary circuit electric strength testing was completed according to IEC61347-1
and IEC61347-2-13.
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 and Line to Power Earth 1kV 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
1000
-1000
1000
-1000
230
230
230
230
230
230
L to N
L to N
L to PE
L to PE
N to PE
N to PE
90
270
90
270
90
270
Pass
Pass
Pass
Pass
Pass
Pass
EV4021A-S-00T Rev.1.05
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12
EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
EVB TEST RESULTS
Performance waveforms are tested on the evaluation board.
17 LEDs in series, ILED =300mA, VOUT=50V, LP=0.97mH, NP:NS:NAUX =50:20:8
120
100 kHz
1 MHz
120
10 MHz
EN550150
110
110
100 kHz
1 MHz
10 MHz
1 PK
MAXH
EN550150
110
SGL
100
90
90
TDS
80
2 AV
MAXH
70
SGL
1 PK 100
MAXH
1 PK 100
MAXH
90
2 AV
MAXH
100 MHz
120
EN550150
SGL
2 AV
MAXH
TDS
80
TDF
80
70
70
CDN QP
60
60
60
EN55015A
50
EN55015A
50
6DB
6DB
6DB
40
40
40
30
30
30
20
20
20
10
10
10
0
0
-10
0
-10
-10
9kHz
30MHz
9kHz
30MHz
30 MHz
Line Regulation
VIN = 85VAC-135VAC/60Hz,
Full Load
3
100 MHz
1
EN550150
110
1 PK
MAXH
100
SGL
0.998
2
0.996
90
2 AV
MAXH
TDF
80
0.994
1
0.992
70
CDN QP
0
EN55015A
50
PF
60
6DB
-1
30
0.986
20
0.984
-2
10
0.982
0
-10
300 MHz
-3
85 105 125 145165185 205225245 265
VIN (VAC)
PF vs. VIN
1
VIN = 185VAC-265VAC/50Hz,
Full Load
0.99
0.98
0.97
PF
0.96
10
13
125
135
VIN = 185VAC-265VAC/50Hz,
Full Load
12.5
12
8.5
7.5
0.9
185 195 205 215 225 235 245 255 265
VIN (VAC)
105 115
VIN (VAC)
9
8
0.91
95
THD vs. VIN
VIN = 85VAC-135VAC/60Hz,
Full Load
9.5
0.94
0.92
0.98
85
THD vs. VIN
0.95
0.93
0.99
0.988
40
30 MHz
300 MHz
PF vs. VIN
Full Load
120
EN55015A
50
11.5
11
7
10.5
6.5
6
85
95
105
115
VIN (VAC)
125
135
10
185 195 205 215 225 235 245 255 265
VIN (VAC)
EV4021A-S-00T Rev.1.05
www.MonolithicPower.com
2/20/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
13
EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
EVB TEST RESULTS (continued)
Performance waveforms are tested on the evaluation board.
17 LEDs in series, ILED =300mA, VOUT=50V, LP=0.97mH, NP:NS:NAUX =50:20:8
Efficiency vs. VIN
88
Efficiency vs. VIN
VIN = 85VAC-135VAC/60Hz,
Full Load
88
87.5
EFFICIENCY (%)
EFFICIENCY (%)
87.5
87
86.5
86
85.5
85
85
VIN = 185VAC-265VAC/50Hz,
Full Load
87
86.5
86
85.5
95
105
115
VIN (VAC)
125
135
85
185 195 205 215 225 235 245 255 265
VIN (VAC)
EV4021A-S-00T Rev.1.05
www.MonolithicPower.com
2/20/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
14
EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
EVB TEST RESULTS (continued)
Performance waveforms are tested on the evaluation board.
VIN=110VAC/60Hz, 17 LEDs in series, ILED =300mA, VOUT=50V, LP=0.97mH, NP:NS:NAUX =50:20:8
Input Voltage and Current
Steady State
VIN = 110VAC/60Hz, Full Load
VIN = 110VAC/60Hz, Full Load
VIN
200V/div.
VIN = 110VAC/60Hz, Full Load
ILED
200mA/div.
ILED
200mA/div.
VCC
10V/div.
VCOMP
2V/div.
IIN
200mA/div.
VIN Start Up
VCC
10V/div.
VCOMP
2V/div.
VGATE
5V/div.
VGATE
10V/div.
OVP
LED Load Open
when Working
OVP
LED Load Open
then Recovery
OVP
LED Load Open
before Start Up
VIN = 110VAC/60Hz, Full Load
VIN = 110VAC/60Hz, Full Load
VIN = 110VAC/60Hz, Full Load
ILED
500mA/div.
ILED
500mA/div.
ILED
500mA/div.
VCC
10V/div.
VCC
10V/div.
VCC
10V/div.
VCOMP
2V/div.
VGATE
10V/div.
VCOMP
2V/div.
VCOMP
2V/div.
VGATE
10V/div.
VGATE
10V/div.
OCP
LED+ Short to LEDwhen Working
OCP
LED+ Short to LEDthen Recovery
OCP
LED+ Short to LEDbefore Start Up
VIN = 110VAC/60Hz, Full Load
VIN = 110VAC/60Hz, Full Load
VIN = 110VAC/60Hz, Full Load
ILED
500mA/div.
ILED
500mA/div.
ILED
500mA/div.
VCC
10V/div.
VCC
10V/div.
VCC
10V/div.
VCOMP
2V/div.
VCOMP
2V/div.
VCOMP
2V/div.
VGATE
10V/div.
VGATE
10V/div.
VGATE
10V/div.
EV4021A-S-00T Rev.1.05
www.MonolithicPower.com
2/20/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
15
EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
EVB TEST RESULTS (continued)
Performance waveforms are tested on the evaluation board.
VIN=220VAC/50Hz, 17 LEDs in series, ILED =300mA, VOUT=50V, LP=0.97mH, NP:NS:NAUX =50:20:8
Input Voltage and Current
Steady State
VIN = 220VAC/50Hz, Full Load
VIN = 220VAC/50Hz, Full Load
VIN
200V/div.
VIN = 220VAC/50Hz, Full Load
ILED
200mA/div.
ILED
200mA/div.
VCC
10V/div.
VCOMP
2V/div.
IIN
200mA/div.
VIN Start Up
VCC
10V/div.
VCOMP
2V/div.
VGATE
5V/div.
VGATE
10V/div.
OVP
LED Load Open
when Working
OVP
LED Load Open
then Recovery
OVP
LED Load Open
before Start Up
VIN = 220VAC/50Hz, Full Load
VIN = 220VAC/50Hz, Full Load
VIN = 220VAC/50Hz, Full Load
ILED
500mA/div.
ILED
500mA/div.
ILED
500mA/div.
VCC
10V/div.
VCC
10V/div.
VCC
10V/div.
VCOMP
2V/div.
VCOMP
2V/div.
VCOMP
2V/div.
VGATE
10V/div.
VGATE
10V/div.
VGATE
10V/div.
OCP
LED+ Short to LEDwhen Working
OCP
LED+ Short to LEDthen Recovery
OCP
LED+ Short to LEDbefore Start Up
VIN = 220VAC/50Hz, Full Load
VIN = 220VAC/50Hz, Full Load
VIN = 220VAC/50Hz, Full Load
ILED
500mA/div.
ILED
500mA/div.
ILED
500mA/div.
VCC
10V/div.
VCC
10V/div.
VCC
10V/div.
VCOMP
2V/div.
VCOMP
2V/div.
VCOMP
2V/div.
VGATE
10V/div.
VGATE
10V/div.
VGATE
10V/div.
EV4021A-S-00T Rev.1.05
www.MonolithicPower.com
2/20/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
16
EV4021A-S-00T – UNIVERSAL INPUT, 15W PSR WITH PFC T8 ISOLATED LED DRIVER
QUICK START GUIDE
1. Preset AC Power Supply to 85V ≤ VIN ≤265V.
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 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. Please contact MPS for current specifications.
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.
EV4021A-S-00T Rev.1.04
www.MonolithicPower.com
2/20/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
17