EB1116

EV9908-J-00A
108VAC~132VAC/60Hz, 40V/120mA
Low Cost, High PFC Buck, Off-line
Dimmable LED Driver Evaluation Board
The Future of Analog IC Technology
FEATURES
The EV9908-J-00A Evaluation Board is
designed to demonstrate the capabilities of
MP9908. The MP9908 is a highly integrated
TRIAC dimmable LED driver with high power
factor. It
is specifically designed for low-line
input (120VAC), no-isolated, TRIAC-dimmable
LED lighting applications, especially for the low
cost and small form factor applications.
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The EV9908-J-00A is typically designed for
driving a 4.8W Triac dimmable LED bulb with
40VTYP, 120mA LED load from 108VAC to
132VAC, 60Hz.
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The EV9908-J-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; output short-circuit protection,
thermal shut down, etc.
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ELECTRICAL SPECIFICATION
Parameter
Input Voltage
Output Voltage
LED Current
Output Power
Efficiency (full load)
Power Factor
THD
Symbol
Value
VIN
VOUT
ILED
POUT
η
PF
THD
108 to 132
40
120
4.8
>81.5
>0.85
<45
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Units
VAC
V
mA
W
%
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Excellent TRIAC Dimming Performance
Buck Topology
Lowest Cost BOM
Constant Current LED Driver
Good LED Current Accuracy
500V MOSFET Integrated
Internal HV Fast Start-Up
Single Winding Inductor
High Power Factor (>0.85)
High Efficiency (>81.5%)
LED Current Foldback at High Temperature
Thermal Shutdown (Auto Restart with
Hysteresis)
VCC Under Voltage Lockout with Hysteresis
(UVLO)
Programmable Over Voltage Protection
Output Short Circuit Protection
Fit inside GU10 Bulb Enclosure
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DESCRIPTION
The integrated 500V MOSFET ensures the
system to withstand 500V surge test without
MOV or TVS. Only a single winding inductor is
required to realize the solution. It features
MPS’s proprietary hybrid operation mode which
is designed to achieve good dimming
performance.
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Solid State Lighting
Industrial & Commercial Lighting
Residential Lighting
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APPLICATIONS
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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.
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EV9908-J-00A Rev.1.0
www.MonolithicPower.com
8/12/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
1
EV9908-J-00A – LOW LINE VOLTAGE, 4.8W LOW COST DIMMABLE LED DRIVER
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EV9908-J-00A EVALUATION BOARD
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EVALUATION BOARD SCHEMATIC
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5
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VCC
HV
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RV1
TVR07241
FR1
39/1W
OVF
220nF/250V
BD1
C3
MB6S
220nF/250V
600V/0.5A
10mH
108VAC-132VAC
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U1
MP9908GJ
C5
68pF/630V/1206
L1
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MPS IC Number
EV9908-J-00A
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(L x W x H) 23.9mm x 21.3mm x 17.2mm
Board Number
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R5
330/1W
GND
CS
R3
1
MP9908GJ
R4
30k/0805
C6
C1
2
R1 22k
3
GND
R7
L2
EE8/1mH
GND
R2 499k
D2
DSF1J/600V/1A
LED+
D3
DSF1J
600V/1A
C4
D1
ES1J/600V/1A
40V/120mA
R6
30k/0805
LED-
Figure 1—Schematic
EV9908-J-00A Rev.1.0
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8/12/2015
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© 2015 MPS. All Rights Reserved.
2
EV9908-J-00A – LOW LINE VOLTAGE, 4.8W LOW COST DIMMABLE LED DRIVER
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PCB LAYOUT (SINGLE-SIDED)
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Figure 2—Top Layer
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Figure 3—Bottom Layer
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EV9908-J-00A Rev.1.0
www.MonolithicPower.com
8/12/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
3
EV9908-J-00A – LOW LINE VOLTAGE, 4.8W LOW COST DIMMABLE LED DRIVER
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CIRCUIT DESCRIPTION
The EV9908-J-00A is configured in a singlestage Buck topology and gets a cost effective
BOM. It also achieves high power factor and
excellent TRIAC dimming performance.
power may not be enough supplied only by the
high voltage regulator, the diode D2 connected to
output will help maintain the power supply
voltage.
FR1, RV1, L1, C2, and BD1 compose the input
stage. The fusible resistor FR1 fuses the AC
input to protect for the component failure or some
excessive short events, its resistance is also
used as a passive damper of dimming. RV1 is
used for surge test. L1 and C2 associated with
C3 form an EMI filter. The diode rectifier BD1
rectifies the input line voltage.
R1 and R2 are used to monitor the output OVP
condition. The OVP voltage is set by the divider
ratio of R1 and R2.
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R4, D2, C1 and C6 are used to supply the power
for MP9908. At normal work, the power is
charged by the internal high voltage regulator
from HV pin. But in deep dimming condition, the
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Diode D1 is the Buck fly-wheel diode, the
inductor L2 and the capacitor C4 are the output
filter. The resistor R6 is placed as a dummy load
to consume the output power in open load
condition. The diode D3 is used to prevent the
output current flowing back to IC when input Sine
voltage drops lower than output voltage.
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R3, R7 are sensing resistors for LED current
control. The value of R3 and R8 set the output
LED current.
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R5, C5 are used as a bleeder circuit which
keeping the TRIAC current above the minimum
holding current after TRIAC turns on.
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EV9908-J-00A Rev.1.0
www.MonolithicPower.com
8/12/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
4
EV9908-J-00A – LOW LINE VOLTAGE, 4.8W LOW COST DIMMABLE LED DRIVER
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EV9908-J-00A BILL OF MATERIALS
Qty
Ref
Value
1
C1
2.2µF/10V
1
C2
63pF/630V
2
C3,C5
220nF/250V
1
C4
330µF/50V
1
C6
3.3µF/100V
1
BD1
MB6S
1
D1
ES1J
Diode, 1A, 600V
2
D2,
D3
DSF1J
Diode, 1A, 600V
1
FR1
39Ω/1W
1
L1
10mH
1
L2
1mH
1
R1
22kΩ
1
R2
499kΩ
1
R3
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Description
Ceramic Cap,
10V, X7R
Ceramic Capacitor;
630V;COG
CBB, 250V
Electrolytic
Capacitor,
50V
Ceramic Cap,
100V, X7R
Rectifier
Bridge,
600V, 0.5A
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1.5Ω
1
R7
10Ω
2
R4,R6
1
1
R5
RV1
1
U1
MP9908GJ
4
L,N,
LED+,
LED-
1.0 公针
30kΩ
330Ω/1W
TVR07241
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Manufacturer
0603
muRata
1206
muRata
DIP
Fara
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SOIC-4
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SMA
SOD123FL
GRM188R71A225KE15D
GRM31A7U2J630JW31D
C222E224K30C000
TDK
CD263-50V330
Taiwan
Semiconductor
Taiwan
Semiconductor
C3216X7S2A335K
SXY
DSF1J
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FKN1WSJT-52-39R
DIP
Hulsin
HDR0810-103K-N5
EE8.3
Emei
0603
Yageo
0603
Yageo
D
0805
DIP
DIP
TSOT23-5
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0805
Yageo
Yageo
T
ES1J
Yageo
0805
E
MB6S
DIP
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Jianghai
1206
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Manufacture_P/N
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DIP
F
Fusible Res, 5%,
1W
Inductor
Inductor,
Φ0.18mm,
174 turns
Thick Film Chip
Res, 1%
Thick Film Chip
Res, 1%
Thick Film Chip
Res, 1%
Thick Film Chip
Res, 1%
Thick Film Chip
Res, 5%
Resistor, 1W, 5%
MOV
Triac-dimmable
LED
Lighting
Controller
Package
RC0603FR-0722KL
RC0603FR-07499KL
RC0805FR-071R5L
RC0805FR-0710RL
LIZ
CR05T05NJ30K
Any
TKS
Any
TVR07241
MPS
MP9908J R4
1.0 公针
EV9908-J-00A Rev.1.0
www.MonolithicPower.com
8/12/2015
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© 2015 MPS. All Rights Reserved.
5
EV9908-J-00A – LOW LINE VOLTAGE, 4.8W LOW COST DIMMABLE LED DRIVER
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TRANSFORMER SPECIFICATION
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Electrical Diagram
EE8.3
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3
Inductor
N1
174Ts
0.18mm*1
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Figure 4—Transformer Electrical Diagram
Winding Diagram
Pin Side
C
Pin Side
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1T
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N1
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3Ts
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Winding Start
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Figure 5—Winding Diagram
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EV9908-J-00A Rev.1.0
www.MonolithicPower.com
8/12/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
6
EV9908-J-00A – LOW LINE VOLTAGE, 4.8W LOW COST DIMMABLE LED DRIVER
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Winding Order
Winding No.
Tape Layer Number
1
3
N1
Start & End
Magnet Wire Φ(mm)
2→3
0.18mm * 1
Electrical Specifications
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Electrical Strength
60 second, 60Hz, from Winding to CORE.
Primary Inductance
Pins 2 - 3, all other windings open, measured at 60kHz, 0.1
VRMS
Materials
Item
1
2
3
4
5
6
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Description
Core: EE8.3, UI=2500±25%, ACME P4 or equivalent
Bobbin: EE8.3, 3+3PIN RMMOVE PIN1,4,5,6
Wire: Φ0.18mm, 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
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174
1000VAC
1mH±8%
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Turns
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EV9908-J-00A Rev.1.0
www.MonolithicPower.com
8/12/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
7
EV9908-J-00A – LOW LINE VOLTAGE, 4.8W LOW COST DIMMABLE LED DRIVER
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EVB TEST RESULTS
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Performance Data
Efficiency, PF and THD
f (Hz)
Vin(V)
Pin(W)
Vo(V)
60
108
120
132
5.68
5.89
6.06
40.8
40.9
41.0
Io(mA)
114
118.5
122
Po(W)
4.65
4.85
5.00
Efficiency(%)
81.9
82.3
82.5
PF
0.913
0.883
0.850
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THD(%)
36.0
40.4
44.1
Dimming Compatibility (No Flicker with these 29 different Dimmers, dimmer quantity
limited, just for reference)
Dimmer
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
LUTRON
LUTRON
LUTRON
LUTRON
LUTRON
LUTRON
LUTRON
LEVITON
LEVITON
LEVITON
LUTRON
LUTRON
LUTRON
LUTRON
LUTRON
LUTRON
LEVITON
LUTRON
DVELV-303P-WH
CN-600P
AY-600P
SLV-600P
LG-600P
6B38-Q-600P
GL-600H-DK
1G40O5
1I20O5
6633-P
6B38-S-600P
CT-600P
6B38-S-603PG
6B38-DV-600P
DVCL-153P
6B38-DVLV-600P
1L10O5
DV-600P-BR
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Part No.
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F
LEVITON
6613-PL
20
21
22
23
24
LEVITON
LUTRON
LUTRON
LUTRON
LUTRON
C20-6684-IW
AY-600P-LA
TG-600PH-WH
TG-603GH-WH
S-600
25
LUTRON
DVPDC-203P-WH
26
27
28
29
LUTRON
LUTRON
LUTRON
LEVITON
S-600P
6B38-DV-603PG
DNG-603PH-WH
6633-P-1G10O5
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Power Stage
Imax(mA)
Imin(mA)
300W Trailing edge
600W
600W
600W
600W
600W
600W Incandescent
600W
600W
600W
600W
600W
600W
600W
600W
600W
600W
600W Incandescent
600W Magnetic low
voltage
600W Incandescent
600W Incandescent
600W
600W
600W
200W for Philips
dimmable CFL
600W
600W
400W
600W
107.7
91.9
92.2
93.4
92.6
94.5
100.9
93.7
108.1
107.7
90.6
91
72.4
90.7
85.8
92
94.3
91.6
12.5
4.49
4.8
4.7
4.3
4.8
3
3.2
2.3
2.5
3.2
4.7
3
4.6
26.8
5.8
3.2
4.5
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Manufacturer
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107.6
2.4
113.5
95
91
68
100.9
2
3.78
4.4
4.8
3
98.9
35
90.8
72.4
86.3
107.5
3.1
4.29
0
2.6
EV9908-J-00A Rev.1.0
www.MonolithicPower.com
8/12/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
8
EV9908-J-00A – LOW LINE VOLTAGE, 4.8W LOW COST DIMMABLE LED DRIVER
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Electric Strength Test
Input and output was shorted respectively. 3750VAC/50Hz sine wave applied between input and output
for 1min, and operation was verified.
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Surge Test
Line to Line 500V surge testing was completed according to IEC61547.
Input voltage was set at 120VAC/60Hz. Output was loaded at full load and operation was verified
following each surge event.
Surge Level
(V)
Input Voltage
(VAC)
Injection Location
500
-500
120
120
L to N
L to N
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Chip: 59.2℃
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Thermal Test
Chip: 58.7℃
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Trailing edge dimmer with 90% turn on cycle
Test Result
(Pass/Fail)
90
270
Pass
Pass
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Transformer: 55.6℃
C
Without dimmer
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Injection Phase
(°)
Without dimmer
Bleeder Resistor
R5 : 62.1℃
Leading edge dimmer with 50% turn on cycle
EV9908-J-00A Rev.1.0
www.MonolithicPower.com
8/12/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
9
EV9908-J-00A – LOW LINE VOLTAGE, 4.8W LOW COST DIMMABLE LED DRIVER
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EVB TEST RESULTS
Performance waveforms are tested on the evaluation board.
VIN=120VAC/60Hz, 13LEDs in series, ILED=120mA, VOUT=40V.
4
145
3
140
130
1
125
0
115
-2
110
-3
105
100
10
-4
108
113
118
123
128
F
20
25
30
35
82.5
82
81.5
C
0.88
S
0.86
0.84
80
108
40
P
M
0.82
0.80
108
120
113
118
100 kHz
0
108
128
10 MHz
1 MHz
110 EN55015Q
SGL
100
90
O
80
70
60
50
40
30
20
10
0
9 kHz
EN55015A
D
TDS
6DB
N
1 PK
CLRWR
2 AV
CLRWR
113
118
T
O
100 kHz
120
110
T
80
10
123
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123
1 MHz
60
118
123
128
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40
20
0
0 20
128
10 MHz
120
EN55015Q
40
60
80 100 120 140
100 MHz
110
SGL
100
90
TDS
1 PK
CLRWR
2 AV
CLRWR
SGL
100
90
TDS
80
80
70
70
60
60
CDN_QP
EN55015A
6DB
50
40
30
30
20
20
10
10
9 kHz
6DB
50
40
0
30 MHz
113
R
100
40
20
T
80.5
120
30
E
81
50
0.90
2 AV
CLRWR
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15
N
O
0.92
1 PK
CLRWR
E
120
-1
T
N
135
2
A
I
83
0
30 MHz
30 MHz
EV9908-J-00A Rev.1.0
www.MonolithicPower.com
8/12/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
300 MHz
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EV9908-J-00A – LOW LINE VOLTAGE, 4.8W LOW COST DIMMABLE LED DRIVER
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EVB TEST RESULTS (continued)
Performance waveforms are tested on the evaluation board.
VIN=120VAC/60Hz, 13LEDs in series, ILED=120mA, VOUT=40V.
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EV9908-J-00A Rev.1.0
www.MonolithicPower.com
8/12/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
11
EV9908-J-00A – LOW LINE VOLTAGE, 4.8W LOW COST DIMMABLE LED DRIVER
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EVB TEST RESULTS (continued)
Performance waveforms are tested on the evaluation board.
VIN=120VAC/60Hz, 13LEDs in series, ILED=120mA, VOUT=40V.
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EV9908-J-00A Rev.1.0
www.MonolithicPower.com
8/12/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
12
EV9908-J-00A – LOW LINE VOLTAGE, 4.8W LOW COST DIMMABLE LED DRIVER
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QUICK START GUIDE
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1. Preset AC Power Supply to 108VAC ≤ VIN ≤132VAC.
2. Turn Power Supply off.
3. Connect the LED string between “LED+” (anode of LED string) and “LED-” (cathode of LED string).
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4. Connect Power Supply terminals to AC VIN terminals (“L” and “FR1”) as shown on the board.
5. Turn AC Power Supply on after making connections.
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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.
EV9908-J-00A Rev.1.0
www.MonolithicPower.com
8/12/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
13
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