ht7l5820 120w 15s, 2200ma outdoor led for lighting … · 2016-12-30 · 15 series 8 parallel led...
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HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
1 / 28 AN0406E
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
D/N: AN0406E
Features
The switching power of this device is designed for outdoor LED lighting applications. Its
special features are summarised below:
• Wide AC input voltage range
• System architecture is isolation boost & flyback topology
• High efficiency, high power factor and low THD
• Insensitive to ambient temperature changes
• High constant current accuracy and good load regulation
• Full range of protection features such as LED open load protection, short circuit
protection and internal over temperature protection
• Simple system architecture design
Typical System Characteristics
15 series 8 parallel LED (KTRLIGHT/KTR-1W-GH30), 2200mA / 120W @ Open Frame
Description Wide Range (90VAC~265VAC) Input AC Frequency 47Hz~63Hz Output Voltage (VLED+) 36V~54V Output Current (IOUT) 2200mA(typ.) Output Current Ripple <25mA Line Regulation Ta = 25°C <1%@ 115VAC, <±3% @ 220VAC Load Regulation Ta = 25°C <±3%@ 115VAC, <±3% @ 220VAC Efficiency >87.5% @ 115VAC, >89.5% @ 220VAC Power Factor (EMI Solution) >0.99 @ 115VAC, >0.97 @ 220VAC THD <15% @ 115VAC, <15% @ 220VAC Standby Power Consumption <0.3W @ 115VAC, <0.3W @ 220VAC Output Short Circuit Power Consumption <1.0W @ 115VAC, <1.00W @ 220VAC Output Short Circuit Protection Yes Output Open Circuit Protection Yes
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
2 / 28 AN0406E
Application Circuit and BOM
9
13
16
14
6
4
SEL3
2
8
5
7
10
11
12
-+
+15Vdc
+15Vdc
+15Vdc
+2.5Vdc
+2.5Vdc
+-
+54Vdc
-+
+15Vdc
+-
+2.5Vdc
+2.5Vdc
+54Vdc
1COMP
INV
CSPFC
CSPWM
OPFC
VCC
OPWM
VSS
DET
FB
RT
VIN
ZCDHVS
HT7L5820
L1
F1
R1
R2
C1
L2
D4D3
R6
R7
R3
R4
R12
R13C8
D1
C2 C3
L3
L4
R9
C5
D6 R10
R8
R15R14
C9
Q1
R16
C4
D5
R11
R5
R18C10
R17
C6 C7
R10
1C
102C
101
R10
0a
R10
0
C10
0
D100
D101 R104
R102 R105
Q100
R103
C103 R106
D102
C108
R107
C107C107aR108
R109C109
C105
R110
RT100C106
R111
C104
U100
U203
R211
C212
R234
ZD200
R220R202
D200
C203 C204
T200
Rsn1 Csn1
D201
D202 R206
D203 R207
R216
Q201 C205
R208 C207
C206R213
U200:A
U200:B
R224 C208 R225
R218
R219
R215
R200
RJ01
R214
R201
Radj01
R217
R202
R203
C20
0
C20
1
R204
R205
L200
C202
D204
U201:A
U201:B
R232
Q200
R221
R209 Q202
R210
R222
C20
9R
223
C21
1
R22
9
D205
R212
C210
R226
R233
R227R228
R230R231
TVR1
FG
L
N
RTH1
LED-/FG
LED+
VDIM+
VDIM-
CV Control
CC Control
Component Package Parameter Manufacturer R11 SMD1206 RES 6.2M, ±1% R12 SMD1206 RES 3.3M, ±1% R3, R4, R5 SMD1206 RES 3M, ±1% R1, R2 SMD1206 RES 1.5M, ±1% R100, R100A SMD1206 RES 560K, ±1% R232, R233 SMD0805 RES 510K, ±1% R229 SMD0805 RES 330K, ±1% R17, R231 SMD0805 RES 200K, ±1% R108 SMD0805 RES 180K, ±1% R13 SMD0805 RES 150K, ±1% R224 SMD0805 RES 100K, ±1% R18 SMD0805 RES 75K, ±1% R9 SMD1206 RES 68K, ±1% R214 SMD0805 RES 68K, ±1% R221 SMD0805 RES 51K, ±1% R208 SMD0805 RES 30K, ±1% R6, R7 SMD1206 RES 24K, ±1% R109, R200 SMD0805 RES 15K, ±1% R228 SMD0805 RES 11.0K, ±1% R226, R230 SMD0805 RES 10.0K, ±1% R15, R105 SMD0603 RES 10.0K, ±1% R101 SMD0805 RES 8.2K, ±1% R216 SMD0805 RES 5.1K, ±1% R215 SMD0805 RES 3.9K, ±1% R220 SMD0805 RES 4.7K, ±1% R223 SMD0805 RES 1.5K, ±1% R222 SMD0805 RES 1.2K, ±1% R206, R207, R209, R210, R212, R217, R218, R219, R225 SMD0805 RES 1.0K, ±1%
R227 SMD0805 RES 510, ±1% R14 SMD0805 RES 470, ±1% R103 SMD0805 RES 240, ±1% R102 SMD0805 RES 150, ±1% R8 SMD0805 RES 91R, ±1% R104 SMD0805 RES 62R, ±1% RADJ01 SVR 20R R10 SMD0805 RES 15R, ±1% R201 SMD0805 RES 10R, ±1% R107 SMD0805 RES 1R0, ±1%
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
3 / 28 AN0406E
Component Package Parameter Manufacturer R106 BPR38 0R22 KOA R16 BPR38 0R12 KOA R202 SMD2512 RES 0R047 KOA R203 SMD2512 RES 0R039 KOA RJ01 SMD1206 RES 0R0 R213 SMD0805 RES 0R0 RT100, R110, R111, U203, R204, R205, R211, R234, ZD200, RSN1 (N.C)
RTH1 JUMP WIRE D1 GBU408, 4A, 800V D201 TO-220FPAB STTH2003CFP, 2×10A, 300V D3, D4 SMA/DO-214AC GS1M, 1A, 1KV D5 DO-201AD MUR460, 4A, 600V D6, D101, D202, D203 SOD-80 1N4148, 200MA, 100V D204 SMD0805 RES 0R0 D100 DO-15 GPP20M, 2A, 1KV D102, D200 SMA/DO-214AC ES1J, 1A, 600V D205 SOD-323 5V1, 200MW, C200, C201 DIP 12.5×16MM EL 270UF/63V 105°C C202 DIP 8×MM EL 100UF/63V 105°C C6 DIP 14.5×0MM EL 68UF/450V 105°C C107, C203 DIP 5×1MM EL 33UF/50V 105°C C2, C3 DIP ML 0.47UF/450V C205 SMD0805 CE 10UF/10V C102, C108 SMD0805 CE 1.0UF/50V C101 SMD0805 CE 470NF/50V C8 SMD0805 CE 220NF/50V C107A, C204, C207, C211 SMD0805 CE 100NF/50V C105 SMD0805 CE 47NF/50V C106, C209, C210 SMD0805 CE 10NF/50V C100 SMD1206 CE 2.2NF/1KV C10 SMD0805 CE 1.0NF/50V C9, C103 SMD0805 CE 470PF, 50V C4, C104 SMD1206 CE 330PF/1KV C208 SMD0805 CE 68PF/50V C109 SMD0805 CE 10PF/50V C1 DIP X CAP 0.47UF/250V C212 DIP Y CAP 2200PF/250V C5, C7, C206, CSN1 (N.C)
TVR1 DIP Y CAP 1000PF/1KV + Y CAP 1000PF/1KV
L1 COMMON CHOKE T13×6.5×5, 85UH L2 COMMON CHOKE T17×11.5×8.5, 28MH L3 T68-26A, 60T, 200UH, L4 PQ2620 300UH T200 PQ3220 920UH L200 COMMON CHOKE T15×11×8.2, 430UH Q1 TO-220FP TK10A60D, 10A, 600V Q100 TO-220FP SPA11N65C3, 11A, 650V Q200 SOT23-3 MMBT2222AL Q201 TO-92 TL431 Q202 SOT23-3 MMBT3906LT U202 DIP4 PC817 U200, U201 SOP8 LM2904 U100 SOP16 HT7L5820 HOLTEK
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
4 / 28 AN0406E
Protection Mode Part No. HT7L5820
Protection Mode
VCC OVP (VCC Pin) Latch Output OCP (FB Pin) Auto-Recovery Adjustable OTP (RT Pin) Auto-Recovery Output Voltage OVP (DET Pin) Auto-Recovery Internal OTP Auto-Recovery
System Board Introduction
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
5 / 28 AN0406E
Functional Description The HT7L5820 is a power controller which combines PFC with QR PWM. It includes
power a factor correction (PFC) controller operating in the boundary conduction mode
(BCM) and a Quasi-resonant (QR) flyback PWM controller. The following figure shows a
typical application circuit, with the BCM PFC converter in the front end and the
Quasi-resonant flyback converter at the back end.
9
1316
14
6
4
13
2
85
7
10
1112
-+
VB
VB
VB
VC
VC
+-
VA
SELCOMPINV
CSPFC
CSPWM
OPFC
VCC
OPWM
VSS
DET
FBRT
VIN
ZCDHVS
HT7L5820
BCM PFC QR PWM
The device achieves high efficiency and low standby power consumption with relatively
low cost for 40W~200W applications where the BCM PFC and QR PWM operations with
a single switch showing the best performance. The BCM boost PFC converter can
achieve better efficiency with lower cost than Continuous Conduction Mode (CCM) boost
PFC converter.
These benefits result from the elimination of the reverse-recovery losses of the boost
diode and zero-voltage switching (ZVS) or near-ZVS (also called valley switching) of the
boost switch. After the PFC boost circuit, the QR flyback PWM converter for the DC-DC
conversion achieves higher efficiency and lower switching losses than the conventional
hard-switching converter with valley switching.
In addition, the HT7L5820 also includes a variable PFC output voltage function. By
matching the proper output voltage, it will reduce PFC boost ON losses and QR PWM
DC-DC converter switch losses to improve the whole system efficiency when operating at
low voltage power.
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
6 / 28 AN0406E
BCM Boost PFC Converter Operation Principles
In the BCM operation mode, a new switching period is initiated when the inductor current
returns to zero, which is at the boundary of continuous conduction and discontinuous
conduction operations. Even though the BCM operation has a higher peak inductor
current in the power switch, the diode reverse recovery is eliminated, which is better for
the system EMI.
L
IL
IDS
ID
Irr
IDSID
MOSFET Turn_on
MOSFET Turn_off
IL
IDS ID
MOSFET Turn_on
MOSFET Turn_off
IL
CCM BCMBoost Converter
Another feature in the BCM is that the boost converter runs with a variable switching
frequency that depends primarily on the output voltage, the input voltage, the boost
inductance and the output power. The operating frequency changes as the inductor
current follows the sinusoidal input voltage waveform. The highest frequency occurs at
the valley of sinusoidal line voltage. The switching frequency in the boost power switch
will increase under conditions of light-load.
Quasi-resonant Flyback Converter Operation Principles
Quasi-resonant flyback converter topology can be derived from a conventional square
wave, PWM flyback converter. The basic operation principle is shown in the following
steps and diagram.
• During the MOSFET ON time, the input voltage (VIN) is applied across the primary-side inductor, Lm. When this happens the MOSFET current (IDS) increases linearly to the peak value (Ipk). Now the energy is stored in the inductor, Lm.
• When the MOSFET is turned off, the energy stored in the inductor, Lm, is released to the secondary-side inductor, which forces the rectifier diode, D, to turn on. During the diode ON time, the output voltage, Vo, is applied across the secondary-side inductor and the diode current, IS, decreases linearly to zero due to the released energy. At the end of the whole discharge period, all the energy stored in the inductor, Lm, has been delivered to the output. During this period, the output voltage is reflected back to the primary side as (VO-VD)×(NP/NS).
• When the diode current at secondary-side reaches zero, it causes a resonance between the primary-side inductor, Lm, and the MOSFET output capacitor, Coss, with an amplitude of Vo×(Np/Ns). Quasi-resonant switching is achieved by turning on the MOSFET and switching at the minimum voltage stress when VDS reaches its minimum value.
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
7 / 28 AN0406E
NP NS
VIN+
-
Lm
IS
IDS
VDS +
-
Vo
+
-
Ipk
MOSFET Turn_on
MOSFET Turn_off
IDS
IS
Ipk*Np/Ns
D
VDS
VIN
BCM PFC Boost Inductor Formula
The PFC boost inductance is obtained by using the following formula.
Definitions:
Maximum AC operation voltage: max,acV
Maximum PFC output voltage: max,, pfcoV
PFC boost switching efficiency: pfcη
PFC output power: pfcoutP ,
Minimum PFC switching frequency: min,, pfcswf Note that the minimum switching
frequency will affect the inductance, the audible noise, and the peak inductor current etc.
The related formula is:
max,,
max,max,,
min,,,
2max, 414.1
2 pfco
acpfco
pfcswpfcout
acpfc
VVV
fPVL ×−
×××
×=
η
Bring the actual application requirement into the above formula,
uH
VVV
fPVL
pfco
acpfco
pfcswpfcout
acpfc
323 415
264414.1415)1075(1302
2649.0
414.12
3
2
max,,
max,max,,
min,,,
2max,
=
×−×
××××
=
×−×
×××
=η
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
8 / 28 AN0406E
Boost Inductor (L4) Specification
Inductor PQ2620 SPEC
N1 (4-6)0.1mm*36N
2-UEW55T
N9 (2-3)0.2mm
2-UEW6T
BOBBIN
Tape 1.0T
Tape 2.0Ts2
3
6
4
6T55T
Need Gap: 4pin - 6pin L=300uH @1KHz/ 1V
The QR PWM transformer inductance is obtained in the following formula.
Definitions: Minimum PFC output voltage: min,, pfcoV
QR PWM switching efficiency: qrη
Reflected output voltage: ROV Note that the reflected output voltage will affect the
selectable voltage stress in the QR PWM power switch. Minimum QR PWM switching frequency: min,, qrswf
The resonance period falling time for the QR PWM power switch: fqrt ,
Bring the actual application requirement into the following formula,
362.0
)))102.1()1040((1(260160
160
)1(
63
,min,,min,,
max,
=
×××−×+
=
×−×+
=
−
fqrqrswpfcoRO
ROqr tf
VVVD
The QR PWM inductance is obtained for the actual application requirement:
uH
PfDVL
out,QRqrsw
qrpfcoqrPWMQR
877 120)1040(2
0.362)(2600.95
2)(
3
2
min,,
2max,min,,
,
=×××
××=
××××
=η
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
9 / 28 AN0406E
Transformer (T200) Specification
Tape 1.0T N1 (3-A)0.32mm*2N
2-UEW12T
N2 (5-X)0.025mm*8mm
Copper Foil1.2T
N3 (F-10)0.32mm
TIW15T
N4 (A-2)0.32mm*2N
2-UEW12T
N5 (F-10)0.32mm
TIW15T
N6 (2-B)0.32mm*2N
2-UEW12T
N7 (F-11)0.32mm
TIW15T
N8 (B-1)0.32mm*2N
2-UEW12T
N9 (F-11)0.32mm
TIW15T
N10 (6-5)0.32mm
2-UEW6T
N11 (8-9)0.2mm
TIW6T
BOBBIN
Tape 1.0T
Tape 1.0T
Tape 1.0T
Tape 1.0T
Tape 1.0T
Tape 1.0T
Tape 1.0T
Tape 1.0T
Tape 2.0Ts
1 166
77
1212
Need Gap:1pin - 3pin L=900uH @1KHz/ 1V
Transformer PQ3220 SPEC
F (飛線, 線長50mm)
10
11
8
9
6
5
3
2
1
A
B
N1, 12TN3, 15T
N4, 12T
N6, 12T
N10, 6T N11, 6T
N5, 15T
N7, 15TN9, 15T
N8, 12T
Experimental Results System Performance Test Conditions:
AC input voltage range: 90VAC~265VAC.
LED load: 15S8P; Total input power: 120W.
VAC Pin(W) VLED+(VDC) IOUT(mA) POUT(W) Efficiency(%) PF THD(%) 90 124.4 48.1 2210 106.301 85.45% 0.9988 3.9455 100 122.71 48.1 2210 106.301 86.63% 0.9984 3.8272 115 121.09 48.1 2210 106.301 87.79% 0.9975 4.2456 135 119.64 48.1 2210 106.301 88.85% 0.9958 4.9855 180 114.76 47.9 2140 102.506 89.32% 0.9896 8.0049 220 114.22 47.9 2140 102.506 89.74% 0.9824 10.586 240 114.16 47.9 2150 102.985 90.21% 0.9765 12.016 265 114.01 47.9 2150 102.985 90.33% 0.9685 13.927
VAC LED Load Series 12 13 14 15
115 LED Current (mA) 2200 2210 2220 2210
PF. 0.9962 0.9967 0.9972 0.9975
220 LED Current (mA) 2150 2160 2160 2140
PF. 0.9757 0.9789 0.9785 0.9824
Note: The output current may vary due to sense resistance errors and soldering impedance.
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
10 / 28 AN0406E
Fig 1. Efficiency vs. AC Input Voltage
Fig 2. Iout Regulation vs. AC Input Voltage
Fig 3. Power Factor (PF) vs. AC Input Voltage (PF)
Fig 4. Iout Regulation vs. LED(s) Regulation
83%
84%
85%
86%
87%
88%
89%
90%
91%
90 100 115 135 180 220 240 265AC Input (VAC)
Effi
cien
cy
15S, 2200mA
2000
2050
2100
2150
2200
2250
2300
90 100 115 135 180 220 240 265AC Input (VAC)
Iout
(mA
)
15S, 2200mA
0.950.960.960.970.970.980.980.990.991.001.00
90 100 115 135 180 220 240 265AC Input (VAC)
Pow
er F
acto
r
15S, 2200mA
2000
2050
2100
2150
2200
2250
2300
12S 13S 14S 15S
LED Series
Iout
(mA
)
90VAC 100VAC 115VAC135VAC 180VAC 220VAC240VAC 265VAC
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
11 / 28 AN0406E
Fig 5. Efficiency vs. LED Series
Fig 6. Power Factor vs. LED Series
Fig 7. THD vs. AC Input Voltage
83%
84%
85%
86%
87%
88%
89%
90%
91%
90 100 115 135 180 220 240 265AC Input (VAC)
Effi
cien
cy
12S, 2200mA13S, 2200mA14S, 2200mA15S, 2200mA
0.93
0.94
0.95
0.96
0.97
0.98
0.99
1
90 100 115 135 180 220 240 265AC Input (VAC)
Pow
er F
acto
r
12S, 2200mA 13S, 2200mA14S, 2200mA 15S, 2200mA
02
46
810
1214
1618
90 100 115 135 180 220 240 265AC Input (VAC)
THD
(%)
12S, 2200mA13S, 2200mA14S, 2200mA15S, 2200mA
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
12 / 28 AN0406E
AC Power Turn-on
Fig 8. Start-up Time (115VAC)
Fig 9. Start-up Time (230VAC)
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
13 / 28 AN0406E
AC Power Turn-off
Fig 10. Turn-off Delay Time (115VAC)
Fig 11. Turn-off Delay Time (230VAC)
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
14 / 28 AN0406E
AC Power
Fig 12. Input Voltage/Current (115VAC)
Fig 13. Input Voltage/Current (230VAC)
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
15 / 28 AN0406E
LED Voltage/Current Ripple
Fig 14. Output Voltage/Current Ripple (115VAC)
Fig 15. Output Voltage/Current Ripple (230VAC)
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
16 / 28 AN0406E
Protection (1): Remove LED load after AC Power turn-on
Fig 16. Open Load Protection after Power-on (90VAC)
Fig 17. Open Load Protection after Power-on (265VAC)
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
17 / 28 AN0406E
Protection (2): Remove LED load before AC Power turn-on
Fig 18. Open Load Protection before Power-on (90VAC)
Fig 19. Open Load Protection before Power-on (265VAC)
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
18 / 28 AN0406E
Protection (3): Short LED Load after AC Power turn-on
Fig 20. Short Load Protection after Power-on (115VAC)
Fig 21. Short Load Protection after Power-on (230VAC)
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
19 / 28 AN0406E
Protection (4): Short LED Load before AC Power turn-on
Fig 22. Short Load Protection before Power-on (115VAC)
Fig 23. Short Load Protection before Power-on (230VAC)
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
20 / 28 AN0406E
Protection (5): Output Over-Voltage Protection (DET Pin)
Test Circuit Diagram
9
1316
14
6
4
SEL3
2
8
5
7
10
11
12
-+
+15Vdc
+15Vdc
+15Vdc
+2.5Vdc
+2.5Vdc
+-
+54Vdc
-+
+15Vdc
+-
+2.5Vdc
+2.5Vdc
Vdim
+54Vdc
1COMP
INV
CSPFC
CSPWM
OPFC
VCC
OPWM
VSS
DET
FB
RT
VIN
ZCDHVS
L1
F1
R1
R2
C1
L2
D4D3
R6
R7
R3
R4
R12
R13C8
D1
C2 C3
L3L4
R9
C5
D6 R10
R8
R15R14
C9
Q1
R16
C4
D5
R11
R5
R18C10
R17
C6 C7R
101
C10
2C10
1
R10
0a
R10
0
C10
0
D100
D101 R104
R102 R105
Q100
R103
C103 R106
D102
C108
R107
C107C107aR108
R109C109
C105
R110
RT100C106
R111
C104
U100
U203
R211
C212
R234
ZD200
R220U202
D200
C203 C204
T200
Rsn1 Csn1
D201
D202 R206
D203 R207
R216
Q201 C205
R208 C207
C206R213
U200:A
U200:B
R224 C208 R225
R218
R219
R215
R200
RJ01
R214
R201
Radj01
R217
R202
R203
C20
0
C20
1
R204
R205
L200
C202
D204
U201:A
U201:B
R232
Q200
R221
R209 Q202
R210
R222
C20
9R
223
C21
1
R22
9
D205
R212
C210
R226
R233
R227R228
R230R231
3VTest Switch
Test Conditions (1) AC input voltage is 115Vac/60Hz, the HT7L5820 creates a PWM output on OPWM
Pin.
(2) When Test Switch turns on, DEP Pin voltage is 3V, the controller stops switching
operation immediately.
(3) Until Test Switch turns off, the controller enters auto-recovery mode and creates
PWM output on OPWM Pin.
Waveform
Fig 24. Output Over-Voltage Protection (DET Pin)
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
21 / 28 AN0406E
Protection (6): Adjustable Over-Temperature Protection (RT Pin)
Test Circuit Diagram
9
1316
14
6
4
SEL3
2
8
5
7
10
11
12
-+
+15Vdc
+15Vdc
+15Vdc
+2.5Vdc
+2.5Vdc
+-
+54Vdc
-+
+15Vdc
+-
+2.5Vdc
+2.5Vdc
Vdim
+54Vdc
1COMP
INV
CSPFC
CSPWM
OPFC
VCC
OPWM
VSS
DET
FB
RT
VIN
ZCDHVS
L1
F1
R1
R2
C1
L2
D4D3
R6
R7
R3
R4
R12
R13C8
D1
C2 C3
L3L4
R9
C5
D6 R10
R8
R15R14
C9
Q1
R16
C4
D5
R11
R5
R18C10
R17
C6 C7R
101
C10
2C10
1
R10
0a
R10
0
C10
0
D100
D101 R104
R102 R105
Q100
R103
C103 R106
D102
C108
R107
C107C107aR108
R109C109
C105
R110
RT100C106
R111
C104
U100
U203
R211
C212
R234
ZD200
R220U202
D200
C203 C204
T200
Rsn1 Csn1
D201
D202 R206
D203 R207
R216
Q201 C205
R208 C207
C206R213
U200:A
U200:B
R224 C208 R225
R218
R219
R215
R200
RJ01
R214
R201
Radj01
R217
R202
R203
C20
0
C20
1
R204
R205
L200
C202
D204
U201:A
U201:B
R232
Q200
R221
R209 Q202
R210
R222
C20
9R
223
C21
1
R22
9
D205
R212
C210
R226
R233
R227R228
R230R231
Test Switch
Test Conditions (1) AC input voltage is 115Vac/60Hz, the HT7L5820 creates a PWM output on OPWM
Pin.
(2) When Test Switch turns on, RT Pin short to ground, the controller stops switching
operation immediately.
(3) Until Test Switch turns off, the controller enters auto-recovery mode and creates
PWM output on OPWM Pin.
Waveform
Fig 25. Adjustable Over-Temperature Protection (RT Pin)
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
22 / 28 AN0406E
Protection (7): Open-Loop, Short-Circuit, and Overload Protection (FB Pin)
Test Circuit Diagram
9
1316
14
6
4
SEL3
2
8
5
7
10
11
12
-+
+15Vdc
+15Vdc
+15Vdc
+2.5Vdc
+2.5Vdc
+-
+54Vdc
-+
+15Vdc
+-
+2.5Vdc
+2.5Vdc
Vdim
+54Vdc
1COMP
INV
CSPFC
CSPWM
OPFC
VCC
OPWM
VSS
DET
FB
RT
VIN
ZCDHVS
L1
F1
R1
R2
C1
L2
D4D3
R6
R7
R3
R4
R12
R13C8
D1
C2 C3
L3L4
R9
C5
D6 R10
R8
R15R14
C9
Q1
R16
C4
D5
R11
R5
R18C10
R17
C6 C7
R10
1C
102C
101
R10
0a
R10
0
C10
0
D100
D101 R104
R102 R105
Q100
R103
C103 R106
D102
C108
R107
C107C107aR108
R109C109
C105
R110
RT100C106
R111
C104
U100
U203
R211
C212
R234
ZD200
R220U202
D200
C203 C204
T200
Rsn1 Csn1
D201
D202 R206
D203 R207
R216
Q201 C205
R208 C207
C206R213
U200:A
U200:B
R224 C208 R225
R218
R219
R215
R200
RJ01
R214
R201
Radj01
R217
R202
R203
C20
0
C20
1
R204
R205
L200
C202
D204
U201:A
U201:B
R232
Q200
R221
R209 Q202
R210
R222
C20
9R
223
C21
1
R22
9
D205
R212
C210
R226
R233
R227R228
R230R231
Test Switch
Test Conditions (1) AC input voltage is 115Vac/60Hz, the HT7L5820 creates a PWM output on OPWM
Pin.
(2) When Test Switch turns on, the controller enters hiccup mode.
(3) Until Test Switch turns off, the controller enters auto-recovery mode and creates
PWM output on OPWM Pin.
Waveform
Fig 26. OLP and OCP Protection (FB Pin)
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
23 / 28 AN0406E
Protection (8): VCC Pin Over-Voltage Protection (OVP)
Test Circuit Diagram
30VVCC
VSSDETZCD
9 13
16
14
6
4
SEL
3
2
8
5
7
10
11
12
1
COMP
INVCSPFCCSPWM
OPFC
OPWM
FB
RT
VIN
HVS
3V
VOPWM
4.5V
~
VSSDETZCD
VCC
Test Conditions (1) INV, FB and VIN Pin voltage are 3V.
(2) When VCC pin voltage is over turn-on voltage, the HT7L5820 creates a PWM output
on OPWM Pin.
(3) When VCC pin voltage is over OVP voltage, the controller stops switching operation
immediately and enters latch-off mode, until VCC pin voltage is under turn-off
voltage.
Waveform
Fig 27. VCC Pin Over-Voltage Protection
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
24 / 28 AN0406E
Protection (9): Internal OTP
Test Circuit Diagram
VCC
VSSDETZCD
9 13
16
14
6
4
SEL
3
2
8
5
7
10
11
12
1
COMP
INVCSPFCCSPWM
OPFC
OPWM
FB
RT
VIN
HVS
3V
VOPWM
VSSDETZCD
VCC
18V
Test in chamber Ambient temperature : 25°C~150°C
Test Conditions (1) VCC Pin voltage is 18V.
(2) INV, FB and VIN Pin voltage are 3V.
(3) The HT7L5820 creates a PWM output on OPWM Pin. (4) When the temperature is over 150°C, the internal OTP function will be active to turn
off PWM switch.
(5) The controller will re-operate when controller temperature is under the recovery temperature about 90°C.
Waveform
25
50
75
100
125
150
175
200 150°C IC OTP,Stop PWM Switching
90°C IC Disable OTP ,Start PWM Switching
Time
TA(°C)
PWM Output
NO PWM Output
Fig 28. Internal OTP
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
25 / 28 AN0406E
System EMI
Fig 29. Conduction/Line_110VAC
Fig 30. Conduction/Neutral_110VAC
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
26 / 28 AN0406E
Fig 31. Conduction/Line_230Vac
Fig 32. Conduction/Neutral_230Vac
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
27 / 28 AN0406E
Fig 33. Radiation/Vertical_110Vac
Fig 34. Radiation/Horizontal_110Vac
HT7L5820 120W 15S, 2200mA Outdoor LED for Lighting Application
28 / 28 AN0406E
Fig 35. Radiation/Vertical_230Vac
Fig 36. Radiation/Horizontal_230Vac
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