User's Guide
SNVA651A – May 2012 – Revised May 2013
AN-2233 TPS92311 Evaluation Module
1
Introduction
The TPS92311 EVM-8W evaluation module is a constant current output LED driver supporting 5W–8W
applications. The design focuses on applications that require small form factor and minimal number of
external components. The actual PCB dimension of the module is only 22mm x 55mm x 19mm (L x W x
H). The module can work with AC line input from 90 to 132VRMS or 180 to 264VRMS and supplying 350mA
current into a single string of LEDs, typically 6-7 LEDs in series. The evaluation board is carefully
designed to comply with major industrial EMC and safety requirements. The user can make use of the
information provided in the TPS92311 Off-Line Primary Side Sensing Converter with PFC (SNVS811) data
sheet and application notes to design its specific end product easily.
2
Description
The TPS92311 EVM-8W is developed with the TPS92311 converter IC. The TPS92311 is a single-stage
AC/DC converter dedicated for LED Lighting applications. The converter uses a primary-side current
sense configuration to control the LED current at secondly side. The system works in Critical Conduction
Mode (CRM) with flyback topology and it employs a constant on time modulation scheme. Inherently,
systems with this configuration can achieve greater than 0.90 Power Factor (PF) easily. The Power Factor
(PF) and line current harmonic performances of the evaluation board are tested and reported in this
document. The TPS92311 also integrated various protection features: Over-Voltage Protection (OVP),
Thermal Shut Down (TSD) and cycle-by-cycle Over-Current Protection (OCP). With these features in
place, the system is well protected against open and short circuit of the LEDs string. Considering with the
EMI problem, the TPS92311 integrates an internal delay timer to improve it. The delay time can be
programmed through an external resistor, it can ensures the converter switch ON the internal MOSFET
only when the MOSFET’s drain voltage at its lowest point. The Quasi-resonant switching operation
improves the EMI and system efficiency significantly.
3
Typical Applications
LED Lamps:
• A19 (E26/27, E14)
• PAR30/38
• GU10
Domestic and Office SSL solutions:
• Down Light
• LED Panel Light
• Ceiling Lamp Troffer
• T8 Tube
All trademarks are the property of their respective owners.
SNVA651A – May 2012 – Revised May 2013
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AN-2233 TPS92311 Evaluation Module
Copyright © 2012–2013, Texas Instruments Incorporated
1
Electrical Performance Specifications
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Features
• Integrated 600V Power MOSFET
• Regulates LED current without secondary side sensing
• Critcal-Conduction-Mode (CRM) with Zero-Current Detection (ZCD) for valley switching
• Adaptive ON-time control with inherent PFC
• Programmable power MOSFET turn ON delay
• Programmable Constant ON-Time (COT) and Peak Current Mode (PCM) Control
• Over temperature protection
4
Electrical Performance Specifications
Table 1. 230VAC Evaluation Board (TPS92311 230V EVM)
PARAMETER
TEST CONDITIONS
Min
Voltage range
180
Typ
Max
Units
264
VRMS
-
mA
Input Characteristics
Input current when VAC =
230VRMS, VLED = 20V
-
38
330
350
370
mA
-
26
-
V
Full load efficiency (PIN = 8W)
83
85
-
%
Full load Power Factor (PIN =
8W) 230V@50Hz
-
>0.9
-
Output Characteristics
Output voltage, VLED
Output load current, ILED
21
Output over voltage
V
Systems Characteristics
Table 2. 120VAC Evaluation Board (TPS92311 120V EVM)
PARAMETER
TEST CONDITIONS
Min
Typ
Max
Units
132
VRMS
-
mA
Input Characteristics
Voltage range
Input current when VAC =
120VRMS, VLED = 20V
90
-
75
330
350
370
mA
-
26
-
V
82
85
-
%
-
>0.9
-
Output Characteristics
Output voltage, VLED
Output load current, ILED
Output over voltage
21
V
Systems Characteristics
Full load efficiency (PIN = 8W)
Full load Power Factor
(PIN = 8W) 120V@60Hz
2
AN-2233 TPS92311 Evaluation Module
Copyright © 2012–2013, Texas Instruments Incorporated
SNVA651A – May 2012 – Revised May 2013
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Schematic ( TPS92311 120V EVM / TPS92311 230V EVM )
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5
Schematic ( TPS92311 120V EVM / TPS92311 230V EVM )
L1
D7
LED+
D5
T1
R3
R1
0.5A
C2
C5
D1
90-135VAC
CN1
D6
LP
LS
C9
R4
VR1
C10
CN2
C1
R8
6±7
LED
D4
R5
LAUX
*D2
C4
LED-
R6
C8
*M1
*R2
U1
D3
C3
*Optional
C6
SW
SW
SW
SW
NC
NC
ZCD
ISNS
GND
GND
VIN
MODE1
NC
MODE2
COMP
DLY
R15
R14
R10
TPS92311
Figure 1. Standard Schematic for the TPS92311 Evaluation Board
5.1
Test Equipment
Voltage Source: Start at 90VRMS-132VRMS or 180VRMS-264VRMS; AC source: PCR500LA (KIKUSUI)
Multimeter: Agilent 34401A
Power meter: WT210 Digital Power Meter (YOKOGAWA)
Output Load: 7 LEDs in series ( LED forward voltage =3.0 V at 350 mA ) or VLED = 21V
Oscilloscope:TDS3054C (TEKTRONIX )
Operation temperature : 25°C
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3
Board Connection
6
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Board Connection
Current Meter
AC LINE
LED+
Current Meter
AC
TPS92311 EVM
Voltage Meter
AC Neutral
7 x LED
Voltage Meter
LED-
Figure 2. Typical Connection Block Diagram
Figure 3. TPS92311EVM_8W
Terminal Designation
AC Live
4
Description
AC Neutral
Connect 230VAC or 120VAC to the board (TPS92311 120V EVM =
120VAC , TPS92311 230V EVM = 230VAC)
LED+
Connect to the LED + of the LED string
LED-
Connect to the LED – of the LED string
AN-2233 TPS92311 Evaluation Module
Copyright © 2012–2013, Texas Instruments Incorporated
SNVA651A – May 2012 – Revised May 2013
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TPS92311 Evaluation Board Test Procedure
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7
TPS92311 Evaluation Board Test Procedure
CAUTION
High voltage levels are present on the evaluation module whenever it is
energized. Proper precautions must be taken when working with the EVM.
Serious injury can occur if proper safety precautions are not followed.
Table 3. Connections
Step
Operation
Remarks
1
Confirm the demo boards version.
(120VACTPS92311 120V EVM or
230VACTPS92311 230V EVM)
Check the demo board.
2
Connect the AC source to AC line
AC source voltage is 230VAC(TPS92311 230V
EVM ) or/120VAC(TPS92311 120V EVM)
3
Connect the LED light or electronic load to
connecter LED+ and LED- ( Figure 2).
If use electronic load, set the electronic load is 21V
with CV mode. And make sure the LED + connect
to electronic load + and LED- connection electronic
load GND.
Table 4. Functional AC Input Test
Step
Operation
Remarks
4
Switch the power switch on the setup to ON
position.
Please confirm the AC1 and AC2 connection are
correct.
5
The LEDs lights up within 2 sec. Measure the
convertor output voltage.
The LED voltage is 21V. ILED current is 350mA +/5% (electronic load loading value). VLED start up 0.9 and ILED between
330mA to 370mA
6
Switch off the power source.
Don’t touching any connection within 2 second
after power off.
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5
Typical Performance Characteristics (TPS92311 230V EVM (230VAC) / TPS92311 120V EVM (120VAC)
Typical Performance Characteristics (TPS92311 230V EVM (230VAC) / TPS92311
120V EVM (120VAC)
100
100
95
95
EFFICIENCY (%)
EFFICIENCY (%)
8
90
85
80
85
80
75
70
70
90
Figure 4. Efficiency vs AC Input
0.40
0.40
0.39
0.39
0.38
0.38
0.37
0.37
0.36
0.35
0.34
110
120
130
AC INPUT (VAC)
140
0.36
0.35
0.34
0.33
0.33
0.32
0.32
0.31
0.31
0.30
180 190 200 210 220 230 240 250 260 270
AC INPUT (VAC)
0.30
90
Figure 6. Line Regulation
100
Figure 5. Efficiency vs AC Input
I LED (A)
I LED (A)
90
75
180 190 200 210 220 230 240 250 260 270
AC INPUT (VAC)
6
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100
110
120
130
AC INPUT (VAC)
140
Figure 7. Line Regulation
AN-2233 TPS92311 Evaluation Module
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Typical Performance Characteristics (TPS92311 230V EVM (230VAC) / TPS92311 120V EVM (120VAC)
1.00
1.00
0.98
0.98
0.96
0.96
0.94
0.94
0.92
0.92
P.F
P.F
www.ti.com
0.90
0.90
0.88
0.88
0.86
0.86
0.84
0.84
0.82
0.82
0.80
180 190 200 210 220 230 240 250 260 270
AC INPUT (VAC)
0.80
90
380
380
370
370
360
360
350
340
330
330
320
320
15
16
17 18 19
VLED(V)
20
140
350
340
14
110
120
130
AC INPUT (VAC)
Figure 9. Power Factor
ILED(mA)
ILED(mA)
Figure 8. Power Factor
100
21
22
Figure 10. Load Regulation (230VAC)
VAC
14
15
16
17 18 19
VLED(V)
20
21
22
Figure 11. Load Regulation (120VAC)
VAC
IAC
IAC
Figure 12. Input Voltage and Input Current (230VAC)
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Figure 13. Input Voltage and Input Current (120VAC)
AN-2233 TPS92311 Evaluation Module
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Typical Performance Characteristics (TPS92311 230V EVM (230VAC) / TPS92311 120V EVM (120VAC)
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VAC
VAC
VLED
VLED
ILED
ILED
Figure 14. Power Up Output Voltage and Current
(230VAC)
Figure 15. Power Up Output Voltage and Current
(120VAC)
VAC
VAC
VLED
VLED
ILED
ILED
Figure 16. Output Current and Voltage Waveforms
(230VAC)
Figure 17. Output Current and Voltage Waveforms
(120VAC)
VAC
VAC
VLED
VLED
ILED
ILED
Figure 18. Output Short Circuit Waveforms (230VAC)
8
Figure 19. Output Short Circuit Waveforms (120VAC)
AN-2233 TPS92311 Evaluation Module
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Current Harmonic Information
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9
Current Harmonic Information
Harmonic Current as Percentage of
Fundamental (mA)
25
20
15
Class C Limit (mA)
Eval Board
10
5
0
3
5
7
9 11 13 15 17 19 21 23 25
Harmonic Order
Figure 20. TPS92311 120V EVM Current Harmonic vs IEC61000–3–2 Class C Limits
Harmonic Current as Percentage of
Fundamental (mA)
12
10
8
6
Class C Limit (mA)
Eval Board
4
2
0
3
5
7
9 11 13 15 17 19 21 23 25
Harmonic Order
Figure 21. TPS92311 230V EVM Current Harmonic vs IEC61000–3–2 Class C Limits
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9
Electromagnetic Interference (EMI)
10
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Electromagnetic Interference (EMI)
In order to get quick estimation of the EMI filter performance, only PEAK conductive EMI scan was
measured and the data was compared with the EN 55022 Class B conducted EMI Limits. All test
conditions are under PIN = 8W full load.
Figure 22. Peak Conductive EMI per EN55022, Class B Limits (110VAC Live)
Figure 23. Peak Conductive EMI per EN55022, Class B Limits (110VAC Neutral)
Figure 24. Peak Conductive EMI per EN55022, Class B Limits (230VAC Live)
10
AN-2233 TPS92311 Evaluation Module
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EVM Assembly Drawing and PCB Layout
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Figure 25. Peak Conductive EMI per EN55022, Class B Limits (230VAC Neutral)
11
EVM Assembly Drawing and PCB Layout
Figure 26. Top Layer Assembly Drawing (Top View)
Figure 27. Bottom Layer Assembly Drawing (Bottom View)
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11
EVM Assembly Drawing and PCB Layout
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Figure 28. Top Layer Copper (Top View)
Figure 29. Bottom Layer Copper (Bottom View)
12
AN-2233 TPS92311 Evaluation Module
Copyright © 2012–2013, Texas Instruments Incorporated
SNVA651A – May 2012 – Revised May 2013
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Bill of Materials TPS92311 Evaluation Board (TPS92311 230V EVM)
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12
Bill of Materials TPS92311 Evaluation Board (TPS92311 230V EVM)
Item
Designator
1
PCB
Description
Manufacturer
2
U1
Primary Side Converter with Integrated
FET
3
C1
CAP 47000PF 310VAC EMI
SUPPRESSN
4
C2, C5
CAP CER 0.1 µF 630V 10% X7R 1210
TDK
5
C3, C9
CAP, CERM, 10µF, 50V, +/-10%, X7R,
1210
Murata
GRM32ER71H106KA12L
6
C4
CAP CER 15p 50V 0603
Murata
GRM1885C1H150JA01D
7
C6
CAP CER 4.7 µF 16V X7R 0805
Murata
GRM21BR71C475KA73L
8
C7
NC
Printed circuit board
Part Number
551600774-001 Rev A
TI
TPS92311
Vishay / BC
Components
NC
BFC233920473
C3225X7T2J104K
NC
9
C8
CAP CER 2200PF 250VAC X1Y1 RAD
Murata
10
C10
CAP ALUM 470 µF 35V 20% RADIAL
Panasonic - ECG
11
D1
RECT BRIDGE GP 600V 0.8A MINIDIP
Diodes Inc
12
D2
Zener Diode 30V, 5%, 0.25W, SOD-323
NXP
13
D3
DIODE SWITCHING 75V 150mA 0603
Comchip Technology
14
D4
Diode 150V, 0.2A, 50nS, SOD-123
15
D5
Diode, TVS, 250V, 400W, SMA
16
D6
DIODE GPP ULTRA FAST 1A 600V SMA
17
D7
DIODE SCHOTTKY 100V 1A SMA
18
F1
FUSE SLOW BLOW 0.5A
19
L1
Power Inductor 4.7mH
Sumida
RCH895NP-472K /
00777–T049–472
20
M1
SCR 200V, 0.16A, SOT-123
Central
CMPS5062
21
R1
RES Metal Film, 22ohm, 5%, 1W, TH
22
R2
RES, 4.22k ohm, 1%, 0.1W, 0603
Vishay-Dale
CRCW06034K22FKEA
23
R3, R4
200 k ohm, 5%. 0.25W 1206
Vishay/Dale
CRCW1206200KJNEA
24
R5
RES, 66.5k ohm, 1%, 0.1W, 0603
Vishay/Dale
CRCW060366K5FKEA
25
R6
RES, 11.0k ohm, 1%, 0.1W, 0603
Vishay/Dale
CRCW060311K0FKEA
26
R7, R15
27
R8
RES, 200.0 ohm, 1%, 0.1W, 0603
Vishay/Dale
CRCW0603200RJNEA
28
R9
RES, 0 ohm, 5%, 0.25W, 1206
Vishay/Dale
CRCW12060000Z0EA
29
R10
RES, 18.2k ohm, 1%, 0.1W, 0603
Vishay/Dale
CRCW060318K2FKEA
30
R11, R12
31
R13
RES, 100 ohm, 1%, 0.125W, 0603
Vishay-Dale
CRCW0603100RFKEA
32
R14
RES, 3.00 ohm, 1%, 0.25W, 1206
Vishay-Dale
CRCW12063R00FKEA
33
T1
Transformer EE-16 Np:Ns = 5.6:1
Wurth
34
VDR1
35
CN1, CN2
36
NC
Littelfuse Inc
Vishay / General
Semiconductor
Diodes Inc
Littelfuse Inc
Panasonic
NC
NC
NC
VARISTOR 300V 30J 7MM EPCOS
Conn Term Block, 2POS, 5.08mm PCB
TP1, TP2, TP3,
Terminal, Turret, TH, Double
TP4
SNVA651A – May 2012 – Revised May 2013
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Diodes Inc
EPCOS Inc
DE1E3KX222MA4BL01
EEU-FR1V471L
HD06-T
BZX384-C30,115
CDSU4148
BAV20W-7-F
SMAJ250ALFCT-ND
US1J-E3/61T
B1100-13-F
0677.500MXE
ERG-1SJ220
NC
NC
750341087 REV 2.0
S07K300E2
Phoenix Contact
1715721
Keystone Electronics
1502–2
AN-2233 TPS92311 Evaluation Module
Copyright © 2012–2013, Texas Instruments Incorporated
13
Bill of Materials TPS92311 Evaluation Board (TPS92311 120V EVM)
13
14
www.ti.com
Bill of Materials TPS92311 Evaluation Board (TPS92311 120V EVM)
Item
Designator
1
PCB
Description
Manufacturer
2
U1
Primary Side converter with Integrated
FET
3
C1
CAP 47000pF 310VAC EMI SUPPRESSN
4
C2, C5
CAP CER 0.1 µF 630V 10% , X7R 1210
TDK
5
C3, C9
CAP, CERM, 10µF, 50V, +/-10%, X7R,
1210
Murata
GRM32ER71H106KA12L
6
C4
CAP CER 15p 50V 0603
Murata
GRM1885C1H150JA01D
7
C6
CAP CER 4.7 µF 16V X7R 0805
Murata
GRM21BR71C475KA73L
8
C7
CAP CER .1 µF 630V 10% , X7R 1210
TDK
9
C8
CAP CER 2200PF 250VAC X1Y1 RAD
Murata
10
C10
CAP ALUM 470 µF 35V 20% RADIAL
Panasonic - ECG
11
D1
RECT BRIDGE GP 600V 0.8A MINIDIP
Diodes Inc
12
D2
Zener Diode 30V, 5%, 0.25W, SOD-323
NXP
13
D3
DIODE SWITCHING 75V 150mA 0603
Comchip Technology
14
D4
Diode 150V, 0.2A, 50nS, SOD-123
15
D5
Diode, TVS, 250V, 400W, SMA
Printed circuit board
Part Number
551600774-001 Rev A
TI
TPS92311
Vishay/BC Components
BFC233920473
C3225X7T2J104K
C3225X7T2J104K
DE1E3KX222MA4BL01
EEU-FR1V471L
HD06-T
BZX384-C30,115
Diodes Inc
Littelfuse Inc
Vishay / General
Semiconductor
CDSU4148
BAV20W-7-F
SMAJ250ALFCT-ND
16
D6
DIODE GPP ULTRA FAST 1A 600V SMA
17
D7
DIODE SCHOTTKY 100V 1A SMA
18
F1
FUSE SLOW BLOW 0.5A
19
L1
Power Inductor 3.3mH
20
M1
SCR 200V, 0.16A, SOT-123
21
R1
RES Metal Film, 22ohm, 5%, 1W, TH
22
R2
RES, 4.22k ohm, 1%, 0.1W, 0603
Vishay-Dale
CRCW06034K22FKEA
23
R3, R4
RES, 100 k ohm, 5%. 0.25W 1206
Vishay/Dale
CRCW1206100KFKEA
24
R5
RES, 66.5k ohm, 1%, 0.1W, 0603
Vishay/Dale
CRCW060366K5FKEA
25
R6
RES, 11.0k ohm, 1%, 0.1W, 0603
Vishay/Dale
CRCW060311K0FKEA
26
R7, R15
27
R8
RES, 200.0 ohm, 1%, 0.1W, 0603
Vishay/Dale
CRCW0603200RJNEA
28
R9
RES, 0 ohm, 5%, 0.25W, 1206
Vishay/Dale
CRCW12060000Z0EA
29
R10
RES, 5.49k ohm, 1%, 0.1W, 0603
Vishay/Dale
CRCW06035K49FKEA
30
R11, R12
31
R13
RES, 27 ohm, 5%, 0.1W, 0603
Vishay-Dale
CRCW060327R0JNEA
32
R14
RES, 1.50 ohm, 1%, 0.25W, 1206
Vishay-Dale
CRCW12061R50FKEA
33
T1
Transformer EE-16 Np:Ns = 3.8:1
Wurth
34
VDR1
35
CN1, CN2
36
TP1, TP2, TP3,
TP4
NC
Diodes Inc
Littelfuse Inc
Conn Term Block, 2POS, 5.08mm PCB
Terminal, Turret, TH, Double
0677.500MXE
RCH895NP-332K /
00777–T049–332
Central
CMPS5062
Panasonic
ERG-1SJ220
NC
NC
VARISTOR 300V 30J 7MM EPCOS
B1100-13-F
Sumida
NC
NC
US1J-E3/61T
NC
750341086 REV 2.0
EPCOS Inc
S07K300E2
Phoenix Contact
1715721
Keystone Electronics
1502–2
AN-2233 TPS92311 Evaluation Module
Copyright © 2012–2013, Texas Instruments Incorporated
SNVA651A – May 2012 – Revised May 2013
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