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IntroductionThe STEVAL-LLL012V1 evaluation kit is a 35 W constant current smart off-line LED driver working in a BLE mesh networkwhich remotely controls the lighting nodes through the BlueNRG-M2SP wireless module.
The connectivity module manages wireless communication and LED brightness control. The driver regulates LED currentthrough dimming to reduce power consumption and controls ON/OFF states.
The power supply can drive 0.7 A LEDs in the range of 24-48 V as well as universal input range (90 V-265 VAC) with very highpower factor and very low input current distortion. The power supply standby consumption is less than 300 mW.
Figure 1. STEVAL-LLL012V1 evaluation kit (top and bottom)
STEVAL-LLL012V1 smart LED lighting with BLE mesh network connectivity for indoor lighting
AN5607
Application note
AN5607 - Rev 2 - May 2021For further information contact your local STMicroelectronics sales office.
www.st.com
1 Architecture
The smart lighting design architecture for the proposed solution is shown in the figure below.
Figure 2. Smart home lighting system architecture for STEVAL-LLL012V1
The ST BLE Mesh mobile app sends ON/OFF and dimming control signals to the BlueNRG-M2SP wirelessconnectivity module via Bluetooth to communicate with the STEVAL-LLL012V1 LED driver, which acts a lightingnode in a BLE mesh network.
AN5607Architecture
AN5607 - Rev 2 page 2/25
2 LED driver performance
Figure 3 shows the LED driver overall efficiency measurements at the entire input voltage variation and differentoutput LED voltage settings. The efficiency is more than 86% .Figure 4 shows the LED current regulation (CR) which is less than ±3% for the entire line and load variation.
Figure 3. Overall efficiency vs. input voltage atdifferent LED voltages
82.00
84.00
86.00
88.00
90.00
92.00
90
94.00
120 150 180 210 240 270
Effic
ienc
y(%
)
Input Voltage (Vrms)VLED=24V VLED=32VVLED=40V VLED=48V
Figure 4. LED current regulation vs. input voltageat different LED voltages
-1.00
-2.00
-3.00
0.00
1.00
2.00
3.00
CR(%
)
Input Voltage (Vrms)VLED=24V VLED=32VVLED=40V VLED=48V
90 120 150 180 210 240 270
Figure 5. Total harmonic distortion vs. input voltage at different LED voltages shows the graph for input currenttotal harmonic distortion (THD) for the entire input voltage variation and different output LED voltage settings.THD is less than 22% .Figure 6 shows the displacement power factor (PF) that is more than 0.85 for the entire line and load variation.
Figure 5. Total harmonic distortion vs. inputvoltage at different LED voltages
Figure 6. Power factor vs. input voltage at differentLED voltages
AN5607LED driver performance
AN5607 - Rev 2 page 3/25
3 Start-up and shutdown waveforms
The figures below show the start-up waveforms at line frequency and switching states at different input voltages(90, 230 and 265 VAC) and full LED load (48 V/0.7 A).
Figure 7. Start-up plot at 90 VAC input
CH2: VCC; CH3: VIN; CH4: LED Current
Figure 8. Start-up plot at 230 VAC input
CH2: VCC; CH3: VIN; CH4: LED Current
Figure 9. Start-up plot at 265 VAC input
CH2: VCC; CH3: VIN; CH4: LED Current
Figure 10. Shutdown plot at 90 VAC input
CH2: VCC; CH3: VIN; CH4: LED Current
AN5607Start-up and shutdown waveforms
AN5607 - Rev 2 page 4/25
Figure 11. Shutdown plot at 230 VAC input
CH2: VCC; CH3: VIN; CH4: LED Current
Figure 12. Shutdown plot at 265 VAC input
CH2: VCC; CH3: VIN; CH4: LED Current
AN5607Start-up and shutdown waveforms
AN5607 - Rev 2 page 5/25
4 Steady state switching mode waveforms
The figures below show steady state switching waveforms at line frequency and switching states at different inputvoltages (90, 115, 230 and 265 VAC) and full LED load (48 V/0.7 A).The test results show the converter is stable and working in quasi-resonant mode for universal input voltage withconstant LED current. All the power component measurements are well within the optimum range.
Figure 13. Switching plot at 265 VAC input(channels 1, 2, 3 and 4)
CH1: MOSFET Drain; CH2: VCC; CH3: Gate drive; CH4: LEDCurrent
Figure 14. Switching plot at 230 VAC input(channels 1, 3 and 4)
CH1: MOSFET Drain; CH3: Gate drive; CH4: Peak CurrentSense
Figure 15. Switching plot at 230 VAC input(channels 1, 2 and 3)
CH1: MOSFET Drain; CH2: VCC; CH3: Gate drive
Figure 16. Switching plot at 265 VAC input(channels 1, 2 and 3)
CH1: MOSFET Drain; CH2: VCC; CH3: Gate drive
AN5607Steady state switching mode waveforms
AN5607 - Rev 2 page 6/25
Figure 17. Switching plot at 90 VAC input (channels1, 2 and 3)
CH1: MOSFET Drain; CH2: VCC; CH3: Gate drive
Figure 18. Switching plot at 115 VAC input(channels 1, 2 and 3)
CH1: MOSFET Drain; CH3: Gate drive; CH4: Peak CurrentSense
AN5607Steady state switching mode waveforms
AN5607 - Rev 2 page 7/25
5 Protection and smart lighting features
The LED driver is protected against open and short-circuit condition. The figures below show the LED opencondition waveforms at full load and the LED short and short removal conditions.
Figure 19. LED open condition at 230 VAC
CH1: MOSFET Drain; CHM1:Vout LED; CH4: LED Current
Figure 20. LED open condition at 265 VAC
CH1: MOSFET Drain; CHM1:Vout LED; CH4: LED Current
Figure 21. LED short condition at 230 VAC
CH1: MOSFET Drain; CHM1:Vout LED; CH4: LED Current
Figure 22. LED remove short condition at 230 VAC
CH1: MOSFET Drain; CHM1:Vout LED; CH4: LED Current
Figure 23, Figure 24 and Figure 25 show the power supply smart features: the dimming and the ON/OFF signalsent by the user to the BlueNRG-M2SP and the control signal generated.Figure 26 shows the board standby power consumption which is 0.21 W at nominal input voltage.
AN5607Protection and smart lighting features
AN5607 - Rev 2 page 8/25
Figure 23. LED ON/OFF condition and dimming atfull load
CH2: ON/OFF Signal; CH3: Dimming signal; CH4: LEDCurrent
Figure 24. LED 50% dimming at full loadCH2: ON/OFF Signal; CH3: Dimming signal; CH4: LEDCurrent
Figure 25. LED ON/OFF condition and 75% dimmingat full load
CH2: ON/OFF Signal; CH3: Dimming signal; CH4: LEDCurrent
Figure 26. Standby power consumption: 0.21 W atnominal input voltage
The following figures show the analog dimming test result using PWM signal coming from the BlueNRG-M2SPwireless module.
AN5607Protection and smart lighting features
AN5607 - Rev 2 page 9/25
Figure 27. LED current linearity at different LEDvoltage and dimming value
Figure 28. Output power at different LED voltageand dimming value
AN5607Protection and smart lighting features
AN5607 - Rev 2 page 10/25
6 EMI measurements
The STEVAL-LLL012V1 board has been tested according to the EMI limits applicable for lighting loads. Themeasured limits at different input voltages are well within the normative limits as shown in the figures below.
Figure 29. EMI measurement at full load inputvoltage (100 VAC)
Figure 30. EMI measurement at full load inputvoltage (230 VAC)
AN5607EMI measurements
AN5607 - Rev 2 page 11/25
7 Schematic diagrams
Figure 31. Power board circuit schematic
L N
90 - 305 Vac
Vout = 24V to 48V .. Vovp = 54.3VIout = 0.7A (Imax 3.5A - during protection)
12V
Vout discharge
THD optimizer
VREF = 1.25V
Inverted Logic signalFtyp = 1kHz (for performances)Amplitude = 3.3V
12V
C16
220nF
R2420k
C4100nF
TP10
R3410k
R37470k
C31NM
R36430k
R27
8.25k0.1%
R140R68
C8100nF
TP12
C221uF
F11A
R11220R
C12470pF
U7 HVLED001B1
HVSU
TOFF3
5OPTO
FB4 6ZCD
CS7
8
GND
GD9
10
VCC
R664K3
R35100k
C336.8nF
TP8
R221k5
R235.6k
L147mH1
46
3
R3968k
C52200uF63V
Q5MMBTA06
C3NM
400V
C30NM
R6520k
Q10MMBTA06
R1915k
D131N4148WS
D8RS3B
TP6
R7
51k
T1TSLER2834001
11
2
4
9
8
5
7
6
1
12
R2968k
Q3MMBTA06
C24NM
D10STPS1H100A
C291nF
R40470k
R1820k
TP3
Q7BC817-25
R4NM
RV2S07 K300
C2810nF
R10270k
TP1
C24.7uF63V - 105°C
C92.2nF
300Vac - Y1Q2aSTD10LN80K5
U2TL431AI
J12
1
2
3
4
C27100nF
R42470k
R5847K
C32NM
R17442k0.5%
D3BZX384-C18
R31470k
D5STTH803G
R64NM
C251uF
C7330nF
R133k
R38100k
TP13
R2810k
R570R0
D11N4148WS
R80R51
TP11
R30R0
J141
2
3
4
C26100nF
R3356k
C34
10uF35V
C1710uF35V
C122uF35V - 105°C
D4
SMBJP6KE350A
U8LF33AB
IN1
2
GNDOUT
3
R2NM
C15
4.7uF63V
TP7
C13100nF
C23220nF
C1147pF
1kV
D141N4148WS
C1910nF
R301.27k0.1%
U3
TCLT1007
12
43
J1LED out1
2
R51k
R590R0
RV1S07 K300
C1833nF
R9130k
TP5
R63100k
-
+
U9TSX561
34
52
1
R67NM
J2Mains Connector
12
R1615k
D12 1N4148WS
R4610k
R61NM
R12100R
TP2
R44330k
D6
STTH108
TP9
U4TSM1012
VCC
8
OUT7
CV-4
GN
D6
CC
-2
CC+3
CV+5
VREF1
R20120k
TP4
Q42N7002
D111N4148WS
D91N4148WS
Q6BC817-25
C14100nF
R130R43
R60R47
R26100k
D7BAV21W
-+ BR1
2KBP08M
3
1
2
4
R43330
C10100nF
Q11MMBTA06
R321k
Q1BCX55-16
R25620k
C2122nF
D2BAV21W
R6212k
R2112k
D15MM3Z6V8
VCC
GD
CS
ZCD
VRECT
VOUT
Vcc_sec
GD
HVSU
Vos
TOFF
VOUTCOM_OUT
Dimming
Vdiv_out
ON/OFF
VCC_sec
Dimming
COM_OUT
FBFB
COM_OUT
Dimming
VCC_sec
ON/OFF
Vdiv_out
Dimming
COM_OUTVOUT
TOFF
Vos
HVSU
GD
Vcc_sec
VOUT
VRECT
ZCD
CS
GD
VCC
D15MM3Z6V8
R2112k
R6212k
D2BAV21W
C2122nF
R25620k
Q1BCX55-16
R321k
Q11MMBTA06
C10100nF
R43330
4
2
1
3
BR12KBP08M
-+
D7BAV21W
R26100k
R60R47
R130R43
C14100nF
Q6BC817-25
D91N4148WS
D111N4148WS
Q42N7002
TP4
R20120k
VREF1
CV+5
CC+3
CC
-2
GN
D6
CV-4
OUT7
VCC
8
U4TSM1012
TP9
D6
STTH108
R44330k
TP2
R12100R
R61NM
R4610k
D12 1N4148WS
R1615k
2 1
J2Mains Connector
R67NM
1
25
43
U9TSX561
-
+
R63100k
TP5
R9130k
C1833nF
RV1S07 K300 R59
0R0
R51k
21
J1LED out
34
21
U3
TCLT1007
R301.27k0.1%
C1910nF
D141N4148WS
C1147pF
1kV
C23220nF
C13100nF
TP7
C15
4.7uF63V
R2NM
OUT3
GND
2
IN1
U8LF33AB
D4
SMBJP6KE350A
C122uF35V - 105°C
C1710uF35V
C34
10uF35V
R3356k
C26100nF
4
3
2
1J14
R30R0
TP11
R80R51
D11N4148WS
R570R0
R2810k
TP13
R38100k
R133k
C7330nF
C251uF
R64NM
D5STTH803G
R31470k
D3BZX384-C18
R17442k0.5%
C32NM
R5847K
R42470k
C27100nF
4
3
2
1
J12
U2TL431AI
Q2aSTD10LN80K5
C92.2nF
300Vac - Y1
C24.7uF63V - 105°C
TP1
R10270k
C2810nF
RV2S07 K300
R4NM
Q7BC817-25
TP3
R1820k
R40470k
C291nF
D10STPS1H100A
C24NM
Q3MMBTA06
R2968k
12
1
6
7
5
8
9
4
2
11
T1TSLER2834001
R7
51k
TP6
D8RS3B
D131N4148WS
R1915k
Q10MMBTA06
R6520k
C30NM
C3NM
400V
Q5MMBTA06
C52200uF63V
R3968k
3
6 4
1
L147mH
R235.6k
R221k5
TP8C336.8nF
R35100k
R664K3
VCC
10
GD9
GND
8CS
7
6ZCDFB4
OPTO5
TOFF3
HVSU
1U7 HVLED001B
C12470pF
R11220R
F11A
C221uF
TP12
C8100nF
R140R68
R27
8.25k0.1%
R36430k
C31NM
R37470k
R3410k
TP10
C4100nF
R2420k C16
220nF
12V
Inverted Logic signalFtyp = 1kHz (for performances)Amplitude = 3.3V
VREF = 1.25V
Vout discharge
THD optimizer
12V
Vout = 24V to 48V .. Vovp = 54.3VIout = 0.7A (Imax 3.5A - during protection)
90 - 305 Vac
L N
AN
5607 - Rev 2
page 12/25
AN
5607Schem
atic diagrams
Figure 32. Connectivity board circuit schematic
Prog. connector
Smart Connection
BLUENRG-M2SP
R210K
R1 47K
R710K
R310K
J1
12345678910
R6470E
C1
10nF
C2DNM
S1
1 2
3 45 6
D1
LED green
AC
R510K
R4DNM
C32.2uF
U1
BLUENRG-M2SP
ADC21ADC12DIO43DIO54Vin5
DIO
810
DIO12 20
DIO0 15
ANAT
EST0
/DIO
146
DIO
7/BO
OT
7G
ND
8D
IO6
9
RESETN 19DIO1 18DIO3 17DIO2 16
DIO
1111
DIO
912
DIO
1013
ANAT
EST1
14
D21N4148WS
J2
1234
C4100nF
SWDIO
SWCLK
VCC
EN_CONTROL
DIMMING
NRSTVCC
VCCDIMMINGEN_CONTROL
SWDIOSWCLK
NRST
VCC
VCC
AN
5607 - Rev 2
page 13/25
AN
5607Schem
atic diagrams
8 Bill of materials
Table 1. Power board bill of materials
Item Q.ty Ref. Part/Value Description Manufacturer Order code
1 1 C1
22 µF, Ø 5 x h11x p2, 35 V, radial,can 2000 hrs @105°C
Aluminumelectrolyticcapacitors
Nichicon UPW1V220MDD
2 2 C2 C15
4.7 µF, Ø 5 x h11x p2, 63 V, radial,can 2000 hrs @105°C
Aluminumelectrolyticcapacitors
Nichicon UPW1J4R7MDD
3 0 C3 7.3x2.5xp5 Capacitor Any Any
4 1 C4 100 nF ,7.3x2.5xp5 , 63 V, Capacitor Kemet R82DC3100DQ50J
5 1 C5
2200 µF, Ø 18 xh40 x p7.5, 63 V,radial, can 8000hrs @ 105°C
Aluminumelectrolyticcapacitor
Nichicon UPW1J222MHD
6 1 C7 330 nF18x10xp15 630 V Film capacitor Kemet R463I333050M1K
7 4 C8 C13 C26C27
100 nF, 0603, 50V, X7R
Ceramiccapacitors Kemet C0603C104M5RACTU
8 1 C9 2.2 nF, Ø 12 x10.16, 300 VAC
Capacitor Vishay AY1222M47Y5UC63L0
9 2 C10 C14 100 nF,18x5xp15, 630 V Film capacitors Kemet R463I310050M1K
10 1 C11 47 pF, 1206,1000 V ±5%
Ceramiccapacitor Murata GRM31A7U3A470JW31D
11 1 C12 470 pF, 0603, 50V ±10%, X7R
Ceramiccapacitor Kemet C0603C471K5RACTU
12 2 C17 C34
10 µF, Ø 5 x h11x p2, 50 V, radial,can 2000 hrs @105°C
Aluminumelectrolyticcapacitor
Nichicon UPW1V100MDD
13 1 C18 33 nF, 0603, 50V, ±10%, X7R
Ceramiccapacitor Kemet C0603C333K5RACTU
14 1 C21 22 nF, 0603, 50V, ±10%, X7R
Ceramiccapacitor Kemet C0603C223K5RACTU
15 2 C22 C25 1 µF, 0805, 25 V,±10%, X7R
Ceramiccapacitors Kemet C0805C105K3RACTU
16 1 C16 220 nF, 0603, 50V, ±10%, X7R
Ceramiccapacitor Murata GCM188R71H224KA64J
17 1 C23 220 nF, 0805, 50V, ±10%, X7R
Ceramiccapacitor Samsung CL21B224KBFNNNE
18 0 C24 C30 C31 0603Ceramiccapacitors (notmounted)
19 2 C28 C19 10 nF, 0603, 50V, X7R, ±20%
10nF 50VCeramicCapacitor 0603
Kemet C0603C103M5RACTU
AN5607Bill of materials
AN5607 - Rev 2 page 14/25
Item Q.ty Ref. Part/Value Description Manufacturer Order code
20 1 C29 1 nF, 0603, 50 V,±10%
Ceramiccapacitor Yageo CC0603KRX7R9BB102
21 0 C32 1206Ceramiccapacitor (notmounted)
22 1 C33 6.8 nF, 0603, 50V , X7R, ±10%
Ceramiccapacitor Kemet C0603C682K5RACTU
23 1 R133 KOhms,1206 , 0.25 W,1/4W, ±5%
Chip resistor Stackpole RMCF1206JT33K0
24 0 R2 R4 1206 Resistors (notmounted)
25 1 R3 0 Ohms, 1206,0.25 W Jumper Stackpole RMCF1206ZT0R00
26 0 R64 0805 Resistor (notmounted)
27 1 R5 1 KOhms, 1206 ,0.25 W, ±5% Resistor Yageo RC1206JR-071KL
28 1 R6 470 mOhms,1210, 0.5 W Chip resistor Panasonic ERJ-14BQFR47U
29 1 R8 510 mOhms,1210, 0.5 W, ±1% Chip resistor Yageo RL1210FR-070R51L
30 1 R7 51 kOhms, 1206,0.25 W, ±1% Chip resistor Yageo RC1206FR-0751KL
31 1 R9130 kOhms,0805, 0.125 W,±5%
Chip resistor Yageo RC0805JR-07130KL
32 1 R10270 kOhms,0805, 0.125 W,±1%
Chip resistor Yageo RC0805FR-07270KL
33 1 R11 220 Ohms, 0805,0.125 W, ±5% Chip resistor Vishay CRCW0805220RJNEA
34 1 R12 100 Ohms, 0805,0.5 W, ±5% Chip resistor Panasonic ERJ-P06J101V
35 1 R13430 mOhms,1206 , 0.5 W,±1%
Chip resistor Vishay RCWE1206R430FKEA
36 1 R14 680 mOhms,1206, 0.5 W Chip resistor Yageo RL1206FR-7W0R68L
37 1 R16 15 KOhms, 1206,0.25 W, ±5% Chip resistor Stackpole RMCF1206JT15K0
38 1 R17442 kOhms,0603, 0.1 W,±0.5%
Chip resistor Yageo RT0603DRE07442KL
39 1 R20120 kOhms,0603 , 0.063 W,±0.5%
Chip resistor Susumu RR0816P-124-D
40 1 R18 20 kOhms, 0603,0.1 W, ±5% Chip resistor Stackpole RMCF0603JT20K0
41 1 R19 15 kOhms, 0603,0.1 W, ±5% Chip resistor Stackpole RMCF0603JG15K0
42 1 R22 1.5 kOhms, 0603,0.1 W, ±5% Chip resistor Stackpole RMCF0603JT1K50
AN5607Bill of materials
AN5607 - Rev 2 page 15/25
Item Q.ty Ref. Part/Value Description Manufacturer Order code
43 1 R23 5.6 kOhms, 0805,0.1 W, ±5% Chip resistor Stackpole RMCF0603JT5K60
44 2 R24 R65 20 kOhms, 0603,0.063 W, ± 0.5% Chip resistors Susumu RR0816P-203-D
45 2 R21 R62 12 kOhms, 0603,0.1 W, ±1% Chip resistors Stackpole RMCF0603FT12K0
46 1 R25 620 kOhms, 08050.1 W, ±0.5% Chip resistor Stackpole RC0603FR-07620KL
47 3 R26 R35 R38 100 kOhms,0603, 0.1 W, ±5% Chip resistors Yageo RC0603JR-07100KL
48 1 R278.25 kOhms,0603, 0.2 W,±0.1%
Chip resistor Panasonic ERJ-PB3B8251V
49 1 R301.27 kOhms,0603, 0.2 W,±0.1%
Chip resistor Panasonic ERJ-PB3B1271V
50 3 R28 R46 R34 10 kOhms, 0603,0.1 W, ±5% Chip resistors Stackpole RMCF0603JT10K0
51 1 R29 68 kOhms, 0603,0.1 W, ±0.5% Chip resistor Yageo RT0603DRE0768KL
52 1 R31470 kOhms,0805, 0.125 W,±5%
Chip resistor Stackpole RMCF0805JT470K
53 1 R32 1 kOhms, 0805 ,0.125 W, ±5% Chip resistor TE Connectivity CRG0805J1K0
54 1 R33 56 kOhms, 0603 ,0.1 W, ±5% Chip resistor Panasonic ERJ-3GEYJ563V
55 1 Q2A MOSFET PowerDPAK 800V 8A
N-channel 800V, 0.55 Ω typ., 8A MDmesh K5Power MOSFETin DPAKpackage
ST STD10LN80K5
56 1 R36430 kOhms,0603, 0.1 W,±0.5%
Chip resistor Yageo RT0603DRD07430KL
57 1 R39 68 kOhms, 0603,0.063 W, ±0.5% Chip resistor Susumu RR0816P-683-D
58 3 R40 R37 R42 470 kOhms,0603, 0.1 W, ±5% Chip resistors Yageo RC0603JR-07470KL
59 1 R43 330 Ohms, 0603,0.1 W, ±5% Chip resistor Bourns CR0603-JW-331ELF
60 1 R44 330 kOhm, 0603,0.1 W, ±5% Chip resistor Stackpole RMCF0603JT330K
61 2 R57 R59 0 Ohms, 0603,0.1 W Chip resistors Yageo RC0603JR-070RL
62 1 R58 47 kOhms, 0603,0.1 W ±5% Chip resistor Panasonic ERJ-3GEYJ473V
63 0 R61 0603 Resistor (notmounted)
64 1 R63100 kOhms,0805, 0.125 W,±5%
Chip resistor Yageo RC0805JR-07100KL
AN5607Bill of materials
AN5607 - Rev 2 page 16/25
Item Q.ty Ref. Part/Value Description Manufacturer Order code
65 1 R66 4.3 kOhms, 0603,0.1 W, ±5% Chip resistor Yageo RC0603JR-074K3L
66 0 R67 0603 Resistor (notmounted)
67 6 D1 D9 D11 D12D13 D14 SOD323 General
purpose diodes Vishay 1N4148WS-E3-08
68 1 D4 SMB 330 V 482 V TVS diode MicroCommercial Co. SMBJP6KE350AL-TP
69 S D5 D2PACK 300 V 8A Ultra-fast diode ST STTH803G-TR
70 1 D6 SMA 800 V 1 A Ultra-fast diode ST STTH108A
71 1 D10 SMA 100 V 1 A Power Schottkyrectifier ST STPS1H100A
72 2 D7 D2 SOD123 200 V0.25 A
Generalpurpose diodes Vishay BAV21W-HE3-08
73 1 D3 SOD323 18 V 0.2W Zener diode Vishay BZX384C18-HE3-08
74 1 D15 SOD323 6.8 V0.3 W Zener diode On
Semiconductors MM3Z6V8T1G
75 1 D8 SMC 100 V 3 A Diode Vishay RS3B-E3/57T
76 1 BR1 4-SIP, KBP 800 V2 A Bridge rectifier Vishay VS-2KBP08
77 1 Q1NPN 60 V 1 A/1.25 W SOT-89BCX55
Transistor Nexperia BCX55-16TF
78 1 Q2 TO220FP 800 V8 A
Power MOSFET(not mounted) ST STF10LN80K5
79 4 Q3 Q5 Q10 Q11NPN 80 V 0.5 ASOT23MMBTA06
Transistor OnSemiconductors MMBTA06LT3G
80 1 Q4 SOT23 60 V0.115 A
N-Channelpower MOSFET Infineon 2N7002H6327XTSA2
81 2 Q6 Q7 NPN SOT23 45 V0.5 A Transistor Taiwan
Semiconductor BC817-25 RF
82 1 U2 Op-Amp SOT2336 V
Adjustablemicro-powershunt voltagereference
ST TL431ACL3T
83 1 U3 4-SMD, GullWing 5kV Optoisolator Vishay TCLT1007
84 1 U4 Op-Amp SO8
Lowconsumptionvoltage andcurrentcontroller forbattery chargersand adapters
ST TSM1012IDT
AN5607Bill of materials
AN5607 - Rev 2 page 17/25
Item Q.ty Ref. Part/Value Description Manufacturer Order code
85 1 U7 HVLED001BSSOP10
High powerfactor flybackcontroller withconstant voltageprimary sensingand ultra-lowstandbyconsumption
ST HVLED001BTR
86 1 U8 LDO DPACK
Very low dropvoltageregulator withinhibit
ST LF33ABDT-TR
87 1 U9 SOT23-5
Micro-power, 16V CMOS Op-Amp, single,GBP 900kHz
ST TSX561ILT
88 2 RV1 RV2 470 V 1.2 KA Ø9xp5 Varistor TDK EPCOS B72207S0301K101
89 1 L147 MH 450 MA2LN TH21.5x21.1x13.5
Line filter TDK EPCOS B82731T2451A020
90 1 F1 250 V/1 A Ø8.5xp5 250 V 1 A Fuse Littelfuse 38211000000
91 1 T1 31.4x38.2x25.6 High frequecytransformer Itacoil TSLER2834001
92 2 J1 J2 2 pin - 5.08 mm Connectors Wurth Electronik 691311500102
93 0 J12 4 pin - 3.5 mm Header (notmounted) Any Any
94 1 J14 TH 2.54mm 4-pole socketconnector Fischer BL5.36Z
95 4 L 9.5xØ 4.4 Board supportresting mount
EssentraComponents PST-6-01
96 11
TP1 TP2 TP3TP4 TP5 TP6TP7 TP8 TP10TP11 TP12
TH Ø 1 Red test points KEYSTONE 5000
97 2 TP9 TP13 TH Ø 1 Black test points KEYSTONE 5001
Table 2. Connectivity board bill of materials
Item Q.ty Ref. Value Description Manufacturer Part Number
1 1 C1 10 nF, 0805 (2012Metric), 50 V, X7R
Ceramiccapacitor Yageo CC0805KRX7R9BB103
2 1 C2 0805 (2012Metric), SMD
Ceramiccapacitor (notmounted)
Any Any
3 1 C32.2µF ±10% 50V (2012 Metric),X7R, 0805
Ceramiccapacitor Yageo CC0805KKX7R9BB225
4 1 C4
100 nF, 0805(2012 Metric),±10% 50 V, X7R0805
Ceramiccapacitor Yageo CC0805KRX7R9BB104
AN5607Bill of materials
AN5607 - Rev 2 page 18/25
Item Q.ty Ref. Value Description Manufacturer Part Number
5 1 D1 Radial TH, 2.1 V,569 nm Green LED Lite ON LTL-4232N
6 1 D2 SC-90, SOD-323F,75 V, 150 mA,
Generalpurpose diode
Fairchild/ONSemiconductor 1N4148WS
7 1 J1 10 p, 12.65 mm x5.10 mm
Connectorheader CNC Tech 3220-10-0100-00
8 1 J2
con4-strip-male,TH, through-hole,right angle, 4-position 0.100"(2.54mm)
Connectorheader Wurtz 61300411021
9 1 R1
47K, 0805 (2012Metric), 0.125 W,±1% 1/8 W 0805,SMD
Chip resistor Yageo RC0805FR-0747KL
10 4 R2 R3 R5 R7
10K, 0805 (2012Metric), 0.125 W,±1% 1/8 W 0805,SMD
Chip resistors Yageo RC0805FR-0710KL
11 1 R4
0805 (2012Metric), 0.125 W,±1% 1/8 W 0805,SMD
Chip resistor(not mounted)
12 1 R6
470E, 0805 (2012Metric), 0.125 W,±1% 1/8 W 0805,SMD
Chip resistor TE Connectivity CRGCQ0805F470R
13 1 S1 SMT, 3.00 mm x2.60 mm Tactile switch Würth Elektronik 435171014816
14 1 U120-SMD module,2.4 GHz ~ 2.4835GHz
Very low powerapplicationprocessormodule forBluetooth® lowenergy v5.2
ST BLUENRG-M2SP
AN5607Bill of materials
AN5607 - Rev 2 page 19/25
9 Conclusions
The test results shown demonstrate the good performances achieved by the STEVAL-LLL012V1.The converter is stable and working in quasi-resonant mode for universal input voltage input with constant LEDcurrent. All the power components are well within the optimum range.The board design is robust and reliable from an electrical point of view. The LED driver is well protected againstopen and short-circuit conditions.The board is also compliant with the EMI normative limits applicable for lighting loads.
AN5607Conclusions
AN5607 - Rev 2 page 20/25
Revision history
Table 3. Document revision history
Date Version Changes
03-Mar-2021 1 Initial release.
17-May-2021 2 Updated Introduction.
AN5607
AN5607 - Rev 2 page 21/25
Contents
1 Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2 LED driver performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3 Start-up and shutdown waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
4 Steady state switching mode waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
5 Protection and smart lighting features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
6 EMI measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
7 Schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
8 Bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
9 Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
List of tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
List of figures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
AN5607Contents
AN5607 - Rev 2 page 22/25
List of tablesTable 1. Power board bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Table 2. Connectivity board bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Table 3. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
AN5607List of tables
AN5607 - Rev 2 page 23/25
List of figuresFigure 1. STEVAL-LLL012V1 evaluation kit (top and bottom) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Figure 2. Smart home lighting system architecture for STEVAL-LLL012V1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Figure 3. Overall efficiency vs. input voltage at different LED voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Figure 4. LED current regulation vs. input voltage at different LED voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Figure 5. Total harmonic distortion vs. input voltage at different LED voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Figure 6. Power factor vs. input voltage at different LED voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Figure 7. Start-up plot at 90 VAC input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Figure 8. Start-up plot at 230 VAC input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Figure 9. Start-up plot at 265 VAC input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Figure 10. Shutdown plot at 90 VAC input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Figure 11. Shutdown plot at 230 VAC input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Figure 12. Shutdown plot at 265 VAC input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Figure 13. Switching plot at 265 VAC input (channels 1, 2, 3 and 4). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Figure 14. Switching plot at 230 VAC input (channels 1, 3 and 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Figure 15. Switching plot at 230 VAC input (channels 1, 2 and 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Figure 16. Switching plot at 265 VAC input (channels 1, 2 and 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Figure 17. Switching plot at 90 VAC input (channels 1, 2 and 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Figure 18. Switching plot at 115 VAC input (channels 1, 2 and 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Figure 19. LED open condition at 230 VAC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Figure 20. LED open condition at 265 VAC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Figure 21. LED short condition at 230 VAC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Figure 22. LED remove short condition at 230 VAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Figure 23. LED ON/OFF condition and dimming at full load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 24. LED 50% dimming at full load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 25. LED ON/OFF condition and 75% dimming at full load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 26. Standby power consumption: 0.21 W at nominal input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 27. LED current linearity at different LED voltage and dimming value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Figure 28. Output power at different LED voltage and dimming value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Figure 29. EMI measurement at full load input voltage (100 VAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Figure 30. EMI measurement at full load input voltage (230 VAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Figure 31. Power board circuit schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Figure 32. Connectivity board circuit schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
AN5607List of figures
AN5607 - Rev 2 page 24/25
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