UFM15PL-TP [TI]
a Phase-Dimmable, Primary-Side Regulated LED Driver; 相位可调光，初级侧稳压LED驱动器
| 型号： | UFM15PL-TP |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | a Phase-Dimmable, Primary-Side Regulated LED Driver |
| 文件： | 总26页 (文件大小：1245K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Using the LM3447-A19-120VEVM
User's Guide
Literature Number: SLUU937
May 2012
www.ti.com
WARNING
Always follow TI’s set-up and application instructions, including use of all interface components within their
recommended electrical rated voltage and power limits. Always use electrical safety precautions to help
ensure your personal safety and the safety of those working around you. Contact TI’s Product Information
Center http://support/ti./com for further information.
Save all warnings and instructions for future reference.
Failure to follow warnings and instructions may result in personal injury, property damage, or
death due to electrical shock and/or burn hazards.
The term TI HV EVM refers to an electronic device typically provided as an open framed, unenclosed
printed circuit board assembly. It is intended strictly for use in development laboratory environments,
solely for qualified professional users having training, expertise, and knowledge of electrical safety risks in
development and application of high-voltage electrical circuits. Any other use and/or application are strictly
prohibited by Texas Instruments. If you are not suitably qualified, you should immediately stop from further
use of the HV EVM.
1. Work Area Safety:
(a) Keep work area clean and orderly.
(b) Qualified observer(s) must be present anytime circuits are energized.
(c) Effective barriers and signage must be present in the area where the TI HV EVM and its interface
electronics are energized, indicating operation of accessible high voltages may be present, for the
purpose of protecting inadvertent access.
(d) All interface circuits, power supplies, evaluation modules, instruments, meters, scopes and other
related apparatus used in a development environment exceeding 50 VRMS/75 VDC must be
electrically located within a protected Emergency Power Off (EPO) protected power strip.
(e) Use a stable and non-conductive work surface.
(f) Use adequately insulated clamps and wires to attach measurement probes and instruments. No
freehand testing whenever possible.
2. Electrical Safety:
(a) De-energize the TI HV EVM and all its inputs, outputs, and electrical loads before performing any
electrical or other diagnostic measurements. Revalidate that TI HV EVM power has been safely de-
energized.
(b) With the EVM confirmed de-energized, proceed with required electrical circuit configurations, wiring,
measurement equipment hook-ups and other application needs, while still assuming the EVM circuit
and measuring instruments are electrically live.
(c) Once EVM readiness is complete, energize the EVM as intended.
WARNING: while the EVM is energized, never touch the EVM or its electrical circuits as they
could be at high voltages capable of causing electrical shock hazard.
3. Personal Safety:
(a) Wear personal protective equipment e.g. latex gloves and/or safety glasses with side shields or
protect EVM in an adequate lucent plastic box with interlocks from accidental touch.
4. Limitation for Safe Use:
(a) EVMs are not to be used as all or part of a production unit.
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User's Guide
SLUU937–May 2012
LM3447-A19-120VEVM is a Phase-Dimmable, Primary-Side
Regulated LED Driver
1
Introduction
The LM3447-A19-120VEVM is a 10-W, 120-VAC isolated dimmable LED driver whose form factor intended
for A19/R27 applications.
2
Description
The LM3447-A19-120VEVM is a primary-side power regulated PFC controller used for commercial and
residential phase-cut dimmer compatible LED lamp drivers. The LM3447-A19-120VEVM uses fixed
frequency valley switching operation resulting in discontinuous current operation.
2.1 Typical Applications
•
•
A19 Bulb Form Factor
R27 Bulb Form Factor
2.2 Features
•
•
•
•
•
•
•
•
•
•
•
Primary-Side Control
Leading and Trailing Edge Compatible
50:1 Dimming Range
Valley Switching
Fixed Frequency Discontinuous Operation
Thermal Foldback
PFC
Efficient Triac Hold Current Operation
LED Short and Open Circuit Detection
Thermal Foldback
Constant Power Operation
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Electrical Performance Specifications
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3
Electrical Performance Specifications
Table 1. LM3447-A19-120VEVM Electrical Performance Specifications
PARAMETER
Input Characteristics
Voltage range
TEST CONDITIONS
MIN
TYP
MAX
UNITS
90
120
135
V
Maximum input current
Output Characteristics
Output voltage, VOUT
Output load current, IOUT
Output current ripple
Output over voltage
Systems Characteristics
Switching frequency
Full-load efficiency
100
mA
9 to 10 LED’s
VIN = 120 VAC
28
30
275
100
36
32
310
V
mA
mApp
V
240
75
82%
0.98
kHz
VIN = 120 VAC
Power factor, PF
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Schematic
4
Schematic
Figure 1. LM3447-A19-120VEVM Schematic
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Test Setup
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5
Test Setup
5.1 Test Equipment
Voltage Source: 105 VRMS to 135 VRMS isolated AC source PCR500LA (KIKUSUI)
Multimeters: Agilent 34401A
Power Meter: PM1000 Digital Power Meter (Voltech)
Output Load: 9 LEDs in series (VF = 3.2 V at 350 mA per LED)
Oscilloscope: TDS3045C (TEKTRONIX)
Operating Temperature: 25°C
Recommended Wire Gauge: 18 AWG not more than two feet long
5.2 Recommended Test Setup
Figure 2. LM3447-A19-120VEVM Recommended Test Set Up
5.3 List of Test Points
Table 2. Test Points Functions
TEST POINTS
NAME
Neutral
Line
DESCRIPTION
TP1
TP2
J8
120 VAC neutral connection
120 VAC line voltage
LED+
LED-
LED anode connection
LED cathode connection
J9
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Test Procedure
6
Test Procedure
6.1 Line/Load Regulation and Efficiency Measurement Procedure
1. Connect EVM per Figure 2 above. An external LED load must be used to start up the EVM.
2. Prior to turning on the AC source, set the voltage to 90 VRMS
.
3. Turn on the AC source.
4. Record the output voltage and current readings from Voltmeter 2 and output current reading from
Ammeter 2 and input voltage reading from Voltmeter 1 and current from Ammeter 1.
5. Increase output voltage by 5 VRMS
.
6. Repeat steps 4 and 5 until 135 VAC is reached.
7. Refer to Section 6.2 for shutdown procedure.
6.2 Equipment Shutdown
1. Turn off equipment.
2. Make sure capacitors are discharged.
6.3 EVM Phase Angle Decode vs LED Current
1. Connect EVM per Figure 2 above. An external LED load must be used to start up the EVM.
2. Prior to turning on the AC source, set the voltage to 120 VRMS.
3. Connect scope probe to EVM per Figure 2 above to bridge rectifier output.
4. Turn on the AC source.
5. Record the output voltage and current readings from Voltmeter 2 and output current reading from
Ammeter 2 and input voltage reading from Voltmeter 1 and current from Ammeter 1.
6. Set dimmer to minimum setting and vary by 1.0 msec till 8 msec is reached and record in 5 above.
7. Refer to Section 6.2 for shutdown procedure.
NOTE: Scope must be isolated.
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Performance Data and Typical Characteristic Curves
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7
Performance Data and Typical Characteristic Curves
Figure 3 through Figure 26 present typical performance curves for LM3447-A19-120VEVM.
7.1 Efficiency
Efficiency vs Line Voltage
89.00
87.00
85.00
83.00
81.00
79.00
77.00
75.00
90
100
110
120
130
140
Input voltage (VAC)
Figure 3. LM3447-A19-120VEVM Efficiency
7.2 Power Factor
Input voltage vs. PF
1
0.99
0.98
0.97
0.96
0.95
0.94
0.93
0.92
0.91
0.9
90
100
110
120
130
140
Input voltage (VAC)
Figure 4. LM3447-A19-120VEVM Power Factor vs Line Voltage
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Performance Data and Typical Characteristic Curves
7.3 Line Regulation
Line Regulation
15
14
13
12
11
10
9
8
7
6
5
90
100
110
120
130
140
Input voltage (VAC)
Figure 5. LM3447-A19-120VEVM Input Power Regulation
Line Regulation
325
315
305
295
285
275
265
255
245
235
225
90
100
110
120
130
140
Input voltage (VAC)
Figure 6. LM3447-A19-120VEVM LED Current Regulation
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Performance Data and Typical Characteristic Curves
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7.4 Input Current THD
Ithd% vs. Input voltage
15
14
13
12
11
10
9
8
7
6
5
90
100
110
120
130
140
Input Voltage (VAC)
Figure 7. LM3447-A19-120VEVM- Ithd % vs Line Voltage
7.5 Output Ripple
Figure 8. Output Ripple
(Ch1 - LED current Ch2 - rectified line voltage Ch4- line current 200 mA/div)
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Performance Data and Typical Characteristic Curves
7.6 Switch Node Voltage Valley Switching
Figure 9. Switch Node Waveform
(Ch1 - LED current Ch2- switch node Ch3 - rectified line voltage)
7.7 Triac Dimmer LED Current vs Conduction Angle
Turn-on angle vs. Iout
300
250
200
150
100
50
0
5
25
45
65
85
105
125
145
165
Turn-on angle (degrees)
Figure 10. LED Current vs Conduction Angle
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Performance Data and Typical Characteristic Curves
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7.8 Turn-On Angle vs Input Power
Turn-on angle vs. Total Input Power
12.00
10.00
8.00
6.00
4.00
2.00
0.00
5
55
105
155
Turn-on angle (degrees)
Figure 11. Turn-On Angle vs. Input Power
7.9 Input/Output Current and Line Voltage Waveforms vs. Dimmer Setting
Figure 12. Dimmer Full
(Ch4- LED current Ch3 - rectified line voltage Ch1 – line current)
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Performance Data and Typical Characteristic Curves
Figure 13. Dimmer 8 ms
(Ch4- LED current Ch3 - rectified line voltage Ch1 – line current)
Figure 14. Dimmer 7 ms
(Ch4- LED current Ch3 - rectified line voltage Ch1 – line current)
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Performance Data and Typical Characteristic Curves
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Figure 15. Dimmer 6 ms
(Ch4- LED current Ch3 - rectified line voltage Ch1 – line current)
Figure 16. Dimmer 5 ms
(Ch4- LED current Ch3 - rectified line voltage Ch1 – line current)
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Performance Data and Typical Characteristic Curves
Figure 17. Dimmer 4 ms
(Ch4- LED current Ch3 - rectified line voltage Ch1 – line current)
Figure 18. Dimmer 3 ms
(Ch4- LED current Ch3 - rectified line voltage Ch1 – line current)
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Performance Data and Typical Characteristic Curves
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Figure 19. Dimmer 2.0 ms
(Ch4- LED current Ch3 - rectified line voltage Ch1 – line current)
7.10 Current Sense Waveform
Figure 20. Current Sense Waveform
(Ch4- LED current Ch2 - rectified line voltage Ch3 –R11 Current Sense)
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Performance Data and Typical Characteristic Curves
7.11 LED Open and Short Circuit Waveforms
Figure 21. Pre-Open Circuit Waveforms
(Ch4- LED current Ch2- LED voltage Ch1 – line current)
Figure 22. Open Circuit Waveforms
(Ch4- LED current Ch2- LED voltage Ch1 – line current)
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Performance Data and Typical Characteristic Curves
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Figure 23. Open Circuit Waveforms
(Ch4- LED current Ch2 - line voltage Ch1 – line current)
Figure 24. Pre-Short Circuit Waveforms
(Ch4- LED current Ch2 - rectified line voltage Ch1 – line current)
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Performance Data and Typical Characteristic Curves
Figure 25. Short Circuit Waveforms
(Ch4- LED current Ch2 - rectified line voltage Ch1 – line current)
Figure 26. Short Circuit Waveforms
(Ch4- LED current Ch2- LED voltage Ch1 – line current)
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Performance Data and Typical Characteristic Curves
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7.12 EMI Plot
Figure 27. EMI Plot
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Performance Data and Typical Characteristic Curves
7.13 Transformer Specification
PRI
127 - 191VDC
70kHz
SEC
30VDC, 280mADC
AUX
15VDC, 20mADC
ELECTRICAL SPECIFICATIONS @ 25°C unless otherwise noted:
D.C. RESISTANCE (@20°C ): -31 , 2.90 Ohms 10%.
5-4 , 0.320 Ohms 10%.
7-6 , 0.345 Ohms 10%.
DIELECTRIC RATING: 000VAC3, 1 minute tested by applying 3750VAC for 1 second between
pins 3-7(tie 1+5).
INDUCTANCE: .30mH 10%, 710kHz, 100mVAC, 0mADC, 3-1, Ls.
SATURATION CURRENT: BDmTADC saturating current that causes 20% rolloff from initial inductance.
LEAKAGE INDUCTANCE: 0µH3max., 100kHz, 100mVAC, 3-1(tie 4+5, 6+7), Ls.
TURNS RATIO: 3-1 ):( 5-4 ), ( (8.35 ):(1.00), 2%.
( 3-1 ):( 7-6 ), ( 4.18 ):(1.00), 2%.
( 3-2 ):( 2-1 ), ( 1 ):(1.00), 2%.
OPERATING TEMPERATURE RANGE: -40°C to +125°C includ ing temp rise.
Designed to comply with the following requirements as defined by IEC60950-1, EN60950-1, UL60950-1/CSA60950-1
and AS/NZS60950.1: - Reinforced insulation for a primary circuit at a working voltage of 200VDC.
Wire insulation & RoHS status not affected by wire color. Wire insulation color may vary depending on availability.
Unless otherwise specified, tolerances are as follows:
Angles: 1°
Fractions: 1/64
WE-Midcom, Inc.
WE-Midcom, Inc.
Decimals: .005(.127mm)
Watertown, SD USA
Toll Free: 800-643-2661
Fax: 605-886-4486
Drawing Title rawing Number ev.RD
00
750813049
Scale ---- pSec Sheet 1 of 1
Transformer
Revisions: See Sheet 1
This drawing is dual dimensioned.
Dimensions is brackets are in millimeters
Engineer:EJK
03/21/2012
Figure 28. Transformer Specification
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EVM Assembly Drawing and PCB Layout
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EVM Assembly Drawing and PCB Layout
The following figures (Figure 29 through Figure 32) show the design of the LM3447EVM-128 printed
circuit board.
Figure 29. LM3447-A19-120VEVM Top Layer Copper (top view)
Figure 30. LM3447-A19-120VEVM Bottom Layer Copper (bottom view)
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EVM Assembly Drawing and PCB Layout
Figure 31. LM3447-A19-120VEVM Top Assembly Drawing (top view)
Figure 32. LM3447-A19-120VEVM Bottom Assembly Drawing (bottom view)
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List of Materials
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List of Materials
The EVM components list according to the schematic shown in Figure 1.
Table 3. LM3447-A19-120VEVM List of Materials
QTY
REFDES
DESCRIPTION
MFR
PART NUMBER
STD
2
1
1
1
C10,C11 Capacitor ceramic, 0.1 µF, 16 V, 603
STD
STD
STD
TDK
C12
C6
Capacitor ceramic, 10 µF, 6.3 V, 805
Capacitor ceramic, 1.0 µF, 1210
Capacitor, 1000 pF, X1Y1, 250 VAC
STD
STD
C7
CD85-
E2GA102MYNS
BFC233820103
MAL214651471E3
B32921C3333M
B32921C3104M189
FK20X7R2E224K
HD04
1
1
1
1
1
1
2
1
1
1
1
1
2
C2
Capacitor film, 10 nF, 310 VAC, X2
Capacitor aluminum, 470 µF 50V
Capacitor, 305 VAC, 33 nF
Vishay/BC
Vishay/BC
Epcos
C5
C4
C1
Capacitor, 0.1 µF, leaded, 305 VAC
Capacitor, 0.22 µF, 250 V
Epcos
C3
Vishay
D2
Bridge rectifier, 400 V, 0.8 A, HD04
Diode, small signal, 250 mA, SOD-323
Diode, SMD ultrafast rectifier 1 A, 600 V
Diode, super fast rectifier,
Diodes, Inc
Micro Commercial
Micro Commercial
Diodes, Inc
On Semi
D5, D6
D3
BAV19WS-TP
UFM15PL-TP
ES1D
D4
D7
Diode, Zener, 3.9 V, 200 mW, SOD-323
Diode, SMT TVS 400 W, 160 V
Fuse, slow, 250 VAC, 2 A, radial
Inductor, EMI, 140 mA, 3.3 mH
MM3Z23V9T1G
SMAJ160A
D1
Littlefuse
F1
Bel Fuse inc
TDK
RST2
L1,L2
TSL0808RA-
333KR17-P
1
1
1
1
1
1
2
MOV1
R14
MOV, VMAX, 242 VDC, VMIN 198 VDC
Resistor, chip, 10 Ω, 1/16 W, 603
Resistor, chip, 118 kΩ, 1/16 W, 603
Resistor, chip, 220 kΩ, 1/16 W, 603
Resistor, chip, 23.7 kΩ, 1/16 W, 603
Resistor, chip, 280 kΩ, 1/16W, 603
Resistor, chip, 430 kΩ, 0.25 W, 1%
Littelfuse Inc
STD
V140LA2P
STD
R13
STD
STD
R9
STD
STD
R10
STD
STD
R12
STD
STD
R3,R4
Vishay Dale
HVR2500004303F,
R500
1
1
R1
R7
R5
R8
Resistor, Fusible, 22 Ω, 2 W, 5%
EMC-22RKI
STD
Welwyn
STD
Resistor, chip, 10 Ω, 1/10 W, ±5% 805
Resistor, chip, 100 Ω, 1/10 W, ±5% 805
Resistor, chip, 5.1 kΩ, 1/10 W, ±5% 805
1
STD
STD
1
STD
STD
DNP
1
R15,R16 Resistor, chip, 10 kΩ, 1/4 W, ± 5% 1206
STD
STD
R6
Resistor, chip, 22 kΩ, 1/4 W, ±5% 1206
Resistor, chip, 0.2 Ω, 1/2 W, 1210
STD
STD
1
R11
Vishay Dale
RCWL1210R200JNE
A
1
R8
Resistor, chip, 470 Ω, 1.5 W, 5%, 2512
Vishay Dale
CRCW2512470RJ,
NEGHP
1
1
1
1
RT1
Q2
Q1
U1
T1
"Thermistor, NTC, 100 kΩ, 0805
MOSFET, N-channel, 650 V, 7 A, 600 mΩ, DPAK
MOSFET, 450 V, 600 mA, 2 W
Dimmable LED Controller TSSOP
EE16, 1.3 mH, 4.17:1
Murata
ST Micro
ST Micro
TI
NCP21WF104J03RA
STD8N65M5
STQ3N45K3-AP
LM3447MT
Wurth
750813049
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This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES
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This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES
ONLY and is not considered by TI to be a finished end-product fit for general consumer use. It generates, uses, and can radiate radio
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designed to provide reasonable protection against radio frequency interference. Operation of this equipment in other environments may
cause interference with radio communications, in which case the user at his own expense will be required to take whatever measures may
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EVM Warnings and Restrictions
It is important to operate this EVM within the input voltage range of 90 VAC to 135 VAC and the output voltage range of 26 VDC to 34
VDC.
Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions
concerning the input range, please contact a TI field representative prior to connecting the input power.
Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the EVM.
Please consult the EVM User's Guide prior to connecting any load to the EVM output. If there is uncertainty as to the load specification,
please contact a TI field representative.
During normal operation, some circuit components may have case temperatures greater than 90°C. The EVM is designed to operate
properly with certain components above 90°C as long as the input and output ranges are maintained. These components include but are
not limited to linear regulators, switching transistors, pass transistors, and current sense resistors. These types of devices can be identified
using the EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during operation,
please be aware that these devices may be very warm to the touch.
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Copyright © 2012, Texas Instruments Incorporated
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