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MTK/PE+ 12V/1.8A Charger Design
LD5516C_DB-00a
1 Leadtrend Technology Corporation LD5516C_DB-00a, November 2014
Subject Model Name
LD5516C Demo Board LD5516C_DB-00a (12V/1.8A)
TOP VIEW BOTTOM VIEW
Size 51.5mm(L) x 38.5mm(W) x 23mm(H) Key Features
Compatible MTK/PE+
Meet “DoE-6” Requirement
Meet “CoC V5 Tier-2“ Requirement
Universal Input Range 90-264 VAC
DC Output 5V/1.8A 7V/1.8A 9V/1.8A 12V/1.8A
MTK/PE+ 12V/1.8A Charger Design
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Design Check List
MODEL NAME (機種名稱)
LD5516C_DB-00 TOTAL PAGE (共)
32(頁)
P.M. (機種負責人)
Danny Wei DATE (日期)
2014(年)/11(月)/11(日)
NO.
(項目) TEST ITEM (測試項目)
SPEC (規格)
NAME (擔當者)
PAGE (頁數)
RESULT (結果)
1 Input Characteristics – Efficiency CoC Tier-2 Adam 10~12 PASS
2 Input Characteristics – Power Saving < 75mW Adam 13~13 PASS
3 Output Characteristics – Ripple Noise
5V Vp2p<100mV 7V Vp2p<100mV 9V Vp2p<100mV 12V Vp2p<100mV
Adam 14~15 PASS
4 Output Characteristics – Constant Voltage and Constant Current Adam 16~16 NA
5 Output Characteristics – Constant Voltage and Constant Current with Pump Express PlusTM Operation
Adam 17~18 NA
6 Over Current Protection Test 2.1A±10% Adam 19~19 PASS
7 Turn On Delay Time < 3 sec. Adam 19~19 PASS
8 Rise Time < 50mS Adam 20~20 PASS
9 Dynamic Load Response Rating Vout ±10% Adam 21~21 PASS
10 Hold Up Time ≥ 10mS Adam 22~22 PASS
11 Output UVP Adam 23~24 NA
12 Output Discharge Time < 500mS Adam 25~26 PASS
13 Power Component Stress Voltage De-rating < 95% Adam 26~26 PASS
14 Transformer Flux Density < 3800Guass Adam 27~27 PASS
15 EMI Test – Conduction Meet EN55022/CISPR22 class B
Adam 28~31 PASS
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Contents Index
1. SPECIFICATION ....................................................................................................................... 6 1.1 Input Condition .................................................................................................................... 6 1.2 Output Condition ................................................................................................................. 6 1.3 Ambient Temperature ......................................................................................................... 6
2. APPLICATION CIRCUIT ......................................................................................................... 7 2.1 Schematic ............................................................................................................................ 7 2.2 BOM List............................................................................................................................... 8 2.3 Transformer Design ............................................................................................................ 9
3. EXECUTIVE SUMMARY ....................................................................................................... 10 3.1 Input Characteristics......................................................................................................... 10
3.1.1 Efficiency ................................................................................................................. 10 3.1.2 Power Saving ......................................................................................................... 13
3.2 Output Characteristics ..................................................................................................... 14 3.2.1 Ripple Noise ........................................................................................................... 14 3.2.2 Constant Voltage and Constant Current ............................................................ 16 3.2.3 Constant Voltage and Constant Current with Pump Express PlusTM Operation .......................................................................................................................... 17
3.3 Over Current Protection Test .......................................................................................... 19 3.4 Turn On Delay Time ......................................................................................................... 19 3.5 Rise Time ........................................................................................................................... 20 3.6 Dynamic Load Response ................................................................................................ 21 3.7 Hold Up Time ..................................................................................................................... 22 3.8 Output UVP ........................................................................................................................ 23 3.9 Output Discharge Time .................................................................................................... 25 3.10 Power Component Stress Voltage ............................................................................... 26 3.11 Transformer Flux Density .............................................................................................. 27 3.12 EMI Test ........................................................................................................................... 28
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Table Index
Table 1. Efficiency Measurement @12V ........................................................................................ 10
Table 2. Efficiency Measurement @9V ........................................................................................... 10
Table 3. Efficiency Measurement @7V ........................................................................................... 11
Table 4. Efficiency Measurement @5V ........................................................................................... 11
Table 5. Power Saving ...................................................................................................................... 13
Table 6. CV-CC Regulation .............................................................................................................. 16
Table 7. Constant Voltage and Constant Current with Pump ExpressTM Operation ................ 17
Table 8. Turn On Delay Time ............................................................................................................ 19
Table 9. SPEC: 5V±0.5V, Output Load: 10-90%, T1=T2=10ms, Slew Rate: 0.25A/us ........... 21
Table 10. SPEC: 7V±0.7V, Output Load: 10-90%, T1=T2=10ms, Slew Rate: 0.25A/us ......... 21
Table 11. SPEC: 9V±0.9V, Output Load: 10-90%, T1=T2=10ms, Slew Rate: 0.25A/us ......... 21
Table 12. SPEC: 12V±1.2V, Output Load: 10-90%, T1=T2=10ms, Slew Rate: 0.25A/us ...... 21
Table 13. MOSFET and Diode Stress Voltage @ Steady State (264VAC / 50Hz) .................. 26
Table 14. MOSFET and Diode Stress Voltage @ output short circuit (264VAC / 50Hz) ........ 26
Figure Index
Figure 1. Load vs. Efficiency @115VAC/60Hz .............................................................................. 12
Figure 2. Load vs. Efficiency @230VAC/50Hz .............................................................................. 12
Figure 3. CV-CC Curve ..................................................................................................................... 16
Figure 4. Constant Voltage and Constant Current with Pump Express PlusTM Operation ..... 18
Figure 5. Pump Express PlusTM Operation with 1.8A 90VAC...................................................... 18
Figure 6. Pump Express PlusTM Operation with 1.8A 264VAC ................................................... 18
Figure 7. Start-up Waveforms @ 90VAC / 60Hz & CR mode Full load ..................................... 19
Figure 8. 110VAC @5V Full Load Line EMI test ........................................................................... 28
Figure 9. 110VAC @5V Full Load Neutral EMI test ...................................................................... 28
Figure 10. 220VAC @5V Full Load Line EMI test ......................................................................... 29
Figure 11. 220VAC @5V Full Load Neutral EMI test .................................................................... 29
Figure 12. 110VAC @12V Full Load Line EMI test ....................................................................... 30
Figure 13. 110VAC @12V Full Load Neutral EMI test ................................................................. 30
Figure 14. 220VAC @12V Full Load Line EMI test ...................................................................... 31
Figure 15. 220VAC @12V Full Load Neutral EMI test ................................................................. 31
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1. SPECIFICATION
1.1 Input Condition AC Input Voltage : 90VAC ~ 264VAC AC Input Frequency : 47Hz ~ 63Hz 1.2 Output Condition Output Voltage : 5V ~ 12V Output Current : Typical 1.8A 1.3 Ambient Temperature Ambient Temperature 25oC
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2. APPLICATION CIRCUIT
2.1 Schematic
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2.2 BOM List P/N Component Value Note P/N Component Value Note
R1,R3,R21,R22 2.7MΩ,0805 C6 0.1uF, 25V,0603
R2,R5 47KΩ,1206 C7 10pF,50V,0603
R4 51Ω,1206 C8 NC,0603
R6 2.2Ω,1206 C9 47pF,50V,0603
R7 NC,1206 C10 560pF,50V,0603
R8 100KΩ,1206 CX1 0.15uF, 250V X CAP
R9 0Ω,0805 CY1 470pF,400V Y1 CAP
R10 10Ω,0805 BD1 1A,1000V,TD10M LITEON
R11 10KΩ,0805 IC1 LD5516C PSR IC
R12 43KΩ,0805 IC2 LD8107 DIS IC
R13 240Ω,0805 D1 S1M,1A/1000V SMA
R14 240Ω,1206 D2 S1M,1A/1000V SMA
R15 4.12KΩ,0603 D3 LL4148 SMD
R16 100Ω,0805 D4 DIODES,SBR20A60CT TO220AB
R17 10KΩ,0805 F1 1A,250V Fuse
R18,R20 1.5Ω,1206 LF1 UU9.8 13mH Common choke
R19 NC,06035 T1 XFMR,RM8
B1 0Ω,1206 Q2 4A,700V,P0470ATF TO220F
C1 330pF,1KV,1206 Q1 MMBT4401 SOT23
CE1 47uF,400V TK UTWHS 18*20 ZD1 24V zener diode SMD
CE2,CE3 470uF,16V Electrolytic Solid USB USB port
C3 0.1uF,50V,0805 PCB 1oz,51.5mm*38.5mm*1.2mm
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2.3 Transformer Design Transformer : RM8, PC44 Inductance: 1mH @ 40KHz, 1V Np:Ns:Naux: 55/5/11 Ae: 64mm2
Winding No.
Pin No. Winding types
Number turns Remarks
Start Finish Winding MYLAR tape
N1 1 2 0.27mm ∅× 1P 30 1
N2 12 NC 0.025mm X 7mm 1 1 copper foil
N3 A B TIW 0.65mm ∅ × 2P 5 1 反繞
N4 10 12 0.2mm ∅×1P 11 3
N5 2 3 0.27mm ∅× 1P 25 2
Pin 1-3 1mH ± 5%
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3. EXECUTIVE SUMMARY
Test Equipment Equipment Equipment Model No.
Electrical Load Chroma 63030 Power Meter WT210
AC power source Chroma 61602 Scope TDS 3014C
3.1 Input Characteristics 3.1.1 Efficiency
Specification Result CoC Tier-2 PASS
NOTE: Measured at PCB end
AC Input Pin (W) Po (W) Vo (V) Io (A) Efficiency Avg. Eff.
115VAC 60Hz
24.728 21.5484 11.974 1.7996 87.14%
86.93% 18.375 16.0697 11.907 1.3496 87.45% 12.224 10.6599 11.847 0.8998 87.20% 6.173 5.30404 11.792 0.4498 85.92%
NA NA NA NA 10% Efficiency >76.33%
230VAC 50Hz
24.17 21.435 11.911 1.7996 88.68%
87.58% 18.11 15.9995 11.855 1.3496 88.35% 12.14 10.6302 11.814 0.8998 87.56% 6.175 5.2928 11.767 0.4498 85.71%
NA NA NA NA 10% Efficiency >76.33% Table 1. Efficiency Measurement @12V
AC Input Pin (W) Po (W) Vo (V) Io (A) Efficiency Avg. Eff.
115VAC 60Hz
18.999 16.5851 9.216 1.7996 87.29%
87.13% 14.154 12.3826 9.175 1.3496 87.48% 9.415 8.22507 9.141 0.8998 87.36% 4.737 4.09273 9.099 0.4498 86.40%
NA NA NA NA 10% Efficiency >74.91%
230VAC 50Hz
18.72 16.5005 9.169 1.7996 88.14%
87.19% 14.04 12.334 9.139 1.3496 87.85% 9.401 8.19628 9.109 0.9889 87.19% 4.764 4.07789 9.066 0.4498 85.60%
NA NA NA NA 10% Efficiency >74.91% Table 2. Efficiency Measurement @9V
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AC Input Pin (W) Po (W) Vo (V) Io (A) Efficiency Avg. Eff.
115VAC 60Hz
15.019 13.0561 7.255 1.7996 86.93%
86.84% 11.216 9.76571 7.236 1.3496 87.07% 7.451 6.48576 7.208 0.9889 87.05% 3.738 3.22597 7.172 0.4498 86.30%
NA NA NA NA 10% Efficiency >73.54%
230VAC 50Hz
14.89 12.9913 7.219 1.7996 87.25%
86.47% 11.17 9.72117 7.203 1.3496 87.03% 7.469 6.46056 7.18 0.9889 86.50% 3.775 3.21247 7.142 0.4498 85.10%
NA NA NA NA 10% Efficiency >73.54% Table 3. Efficiency Measurement @7V
AC Input Pin (W) Po (W) Vo (V) Io (A) Efficiency Avg. Eff.
115VAC 60Hz
10.897 9.34532 5.193 1.7996 85.76%
85.71% 8.131 6.98283 5.174 1.3496 85.88% 5.403 4.63757 5.154 0.9889 85.83% 2.697 2.30253 5.119 0.4498 85.37%
1.074 0.89333 4.974 0.1796 83.18% 10% Efficiency >68.98%
230VAC 50Hz
10.87 9.28774 5.161 1.7996 85.44%
84.75% 8.146 6.94774 5.148 1.3496 85.29% 5.44 4.61327 5.127 0.9889 84.80%
2.743 2.28948 5.09 0.4498 83.47%
1.122 0.88938 4.952 0.1796 79.27% 10% Efficiency >68.98%
Table 4. Efficiency Measurement @5V
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Figure 1. Load vs. Efficiency @115VAC/60Hz
Figure 2. Load vs. Efficiency @230VAC/50Hz
85.00%
85.50%
86.00%
86.50%
87.00%
87.50%
88.00%
0 0.5 1 1.5 2
Eff.(
%)
Load(A)
Load(A) vs. Eff.(%) @115VAC/60Hz
5V
7V
9V
12V
83.00%
84.00%
85.00%
86.00%
87.00%
88.00%
89.00%
0 0.5 1 1.5 2
Eff.(
%)
Load(A)
Load(A) vs. Eff.(%) @230VAC/50Hz
5V
7V
9V
12V
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3.1.2 Power Saving
Specification Result < 75mW PASS
AC Input No-Load Consumption (mW)
115VAC / 60Hz 50
230VAC / 50Hz 65
Table 5. Power Saving
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3.2 Output Characteristics 3.2.1 Ripple Noise
Specification Result 5V Vp2p < 100mV PASS
7V Vp2p < 100mV PASS
9V Vp2p < 100mV PASS
12V Vp2p < 100mV PASS
NOTE: Measured with 22AWG 1.2m cable
5V ripple noise @90V full load
5V ripple noise @264V full load
7V ripple noise @90V full load
7V ripple noise @264V full load
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9V ripple noise @90V full load
9V ripple noise @264V full load
12V ripple noise @90V full load
12V ripple noise @264V full load
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3.2.2 Constant Voltage and Constant Current
Specification Result NA NA
NOTE: Measured at PCB end
VAC
CV Mode CC Mode Vo (V) Io (A) Vo (V) Io (A)
90
5.163 2 5.1 2.06 5.134 1.35 4.5 2.051 5.117 0.9 4 2.045 5.049 0.45 3.5 2.028 4.99 0
264
5.118 2 5.1 2.154 5.098 1.35 4.5 2.137 5.059 0.9 4 2.101 4.996 0.45 3.5 2.041 4.927 0
Table 6. CV-CC Regulation
Figure 3. CV-CC Curve
0
1
2
3
4
5
6
0 0.5 1 1.5 2 2.5
Vo (V
)
Io (A)
CV-CC Curve
90VAC
264VAC
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3.2.3 Constant Voltage and Constant Current with Pump Express PlusTM Operation
Specification Result NA NA
NOTE: Measured at PCB end
90VAC
Rated Load CV Mode (V) CC Mode (A)
Level-1 5.049 2.051 Level-2 4.782 2.058 Level-3 4.583 2.056 Level-4 4.357 2.058 Level-5 4.158 2.053 Level-6 3.918 2.049 Level-7 3.72 2.045 Level-8 3.475 2.041 Level-9 6.924 2.085 Level-10 8.834 2.096 Level-11 11.539 2.1
264VAC
Rated Load CV Mode (V) CC Mode (A)
Level-1 4.996 2.137 Level-2 4.752 2.15 Level-3 4.548 2.145 Level-4 4.344 2.139 Level-5 4.139 2.126 Level-6 3.892 2.103 Level-7 3.695 2.079 Level-8 3.436 2.074 Level-9 6.893 2.173 Level-10 8.81 2.182 Level-11 11.473 2.178
Table 7. Constant Voltage and Constant Current with Pump ExpressTM Operation
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Figure 4. Constant Voltage and Constant Current with Pump Express PlusTM Operation
Figure 5. Pump Express PlusTM Operation with 1.8A 90VAC
Figure 6. Pump Express PlusTM Operation with 1.8A 264VAC
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3.3 Over Current Protection Test
Specification Result 2.1A ±10% PASS
Test Condition
Input 5V Io(Max)
7V Io(Max)
9V Io(Max)
12V Io(Max)
90VAC / 60Hz 2.07A 2.09A 2.10A 2.10A 115VAC / 60Hz 2.08A 2.10A 2.11A 2.12A 230VAC / 50Hz 2.14A 2.16A 2.17A 2.17A 264VAC / 50Hz 2.16A 2.18A 2.19A 2.18A
3.4 Turn On Delay Time
Input Turn on delay time 90VAC / 60Hz 2.42 sec.
Specification Result
< 3 sec. PASS
Table 8. Turn On Delay Time
Figure 7. Start-up Waveforms @ 90VAC / 60Hz & CR mode Full load
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3.5 Rise Time
Specification Result Rise Time < 50mS PASS
Vin: 90VAC O/P: No load Rise Time: 1.685mS
Vin: 90VAC O/P: Full load Rise Time: 10.39mS
Vin: 264VAC O/P: No load Rise Time: 1.4mS
Vin: 264VAC O/P: Full load Rise Time: 3.824mS
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3.6 Dynamic Load Response
Specification Result Rating Vout ±10% PASS
NOTE: Measured at PCB end
Input Output Dynamic Reading
Vmax (V) Vmin (V) 90VAC / 60Hz 0.181.62A 5.30 4.62 115VAC / 60Hz 0.181.62A 5.32 4.68 230VAC / 50Hz 0.181.62A 5.32 4.68 264VAC / 50Hz 0.181.62A 5.24 4.64
Table 9. SPEC: 5V±0.5V, Output Load: 10-90%, T1=T2=10ms, Slew Rate: 0.25A/us
Input Output Dynamic Reading
Vmax (V) Vmin (V) 90VAC / 60Hz 0.181.62A 7.24 6.58 115VAC / 60Hz 0.181.62A 7.20 6.58 230VAC / 50Hz 0.181.62A 7.16 6.54 264VAC / 50Hz 0.181.62A 7.14 6.52
Table 10. SPEC: 7V±0.7V, Output Load: 10-90%, T1=T2=10ms, Slew Rate: 0.25A/us
Input Output Dynamic Reading
Vmax (V) Vmin (V) 90VAC / 60Hz 0.181.62A 9.16 8.44 115VAC / 60Hz 0.181.62A 9.16 8.44 230VAC / 50Hz 0.181.62A 9.12 8.40 264VAC / 50Hz 0.181.62A 9.12 8.36
Table 11. SPEC: 9V±0.9V, Output Load: 10-90%, T1=T2=10ms, Slew Rate: 0.25A/us
Input Output Dynamic Reading
Vmax (V) Vmin (V) 90VAC / 60Hz 0.181.62A 11.8 11.1 115VAC / 60Hz 0.181.62A 11.9 11.1 230VAC / 50Hz 0.181.62A 11.8 11.0 264VAC / 50Hz 0.181.62A 11.7 11.0
Table 12. SPEC: 12V±1.2V, Output Load: 10-90%, T1=T2=10ms, Slew Rate: 0.25A/us
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3.7 Hold Up Time
Specification Result ≥ 10mS PASS
Input Load Measured (mS)
115VAC / 60Hz 12V/1.8A 22.3 230VAC / 50Hz 12V/1.8A 103
CH1: Vout, CH2: Input voltage Vin: 115VAC
CH1: Vout, CH2: Input voltage Vin: 230VAC
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3.8 Output UVP
Specification Result NA NA
Vin: 90VAC 5V UVP = 3.36V
Vin: 90VAC 7V UVP = 5.28V
Vin: 90VAC 9V UVP = 7.2V
Vin: 90VAC 12V UVP = 10V
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Vin: 264VAC 5V UVP = 3.36V
Vin: 264VAC 7V UVP = 5.24V
Vin: 264VAC 9V UVP = 7.16V
Vin: 264VAC 12V UVP = 9.92V
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3.9 Output Discharge Time
Specification Result < 500mS PASS
Vin: 115VAC Io: 12V 1.8A→0A Discharge Time: 470mS
Vin: 230VAC Io: 12V 1.8A→0A Discharge Time: 440mS
Vin: 115VAC Io: 9V 1.8A→0A Discharge Time: 384mS
Vin: 230VAC Io: 9V 1.8A→0A Discharge Time: 398mS
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Vin: 115VAC Io: 7V 1.8A→0A Discharge Time: 330mS
Vin: 230VAC Io: 7V 1.8A→0A Discharge Time: 274mS
3.10 Power Component Stress Voltage
Specification Result Derating < 95% PASS
No. Item Max. Rating (V) Steady State(264VAC / 50Hz)
Measurement Derating (%) V V
1 Q2 700 582 86.6 2 D4 60 48.2 92.3
Table 13. MOSFET and Diode Stress Voltage @ Steady State (264VAC / 50Hz)
No. Item Max. Rating (V) Steady State(264VAC / 50Hz)
Measurement Derating (%) V V
1 Q2 700 606 86.6 2 D4 60 55.4 92.3
Table 14. MOSFET and Diode Stress Voltage @ output short circuit (264VAC / 50Hz)
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3.11 Transformer Flux Density Lp: 1mH Np: 55Ts Ae: 64mm2 Rcs: 0.75ohm
Specification Result < 3800 Guass PASS
Input
+12Vout/1.8A +12Vout/2.1A Bmax Bmax
90VAC / 60Hz 2580Guass 3050Guass CH1: Voltage of current sense resistor @ 90VAC & 1.8A load
△B=(Ip*Lp)/(Np*Ae) =(Vcs/Rcs*Lp)/(Np*Ae) =(0.68/0.75*1m)/(55*64*10-6) =0.258(Tesla)
CH1: Voltage of current sense resistor @ 90VAC & 2.1A load
△B=(Ip*Lp)/(Np*Ae) =(Vcs/Rcs*Lp)/(Np*Ae) =(0.804/0.75*1m)/(55*64*10-6) =0.305(Tesla)
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3.12 EMI Test
Specification Result Meet EN55022/CISPR22 class B PASS
Figure 8. 110VAC @5V Full Load Line EMI test
Figure 9. 110VAC @5V Full Load Neutral EMI test
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Figure 10. 220VAC @5V Full Load Line EMI test
Figure 11. 220VAC @5V Full Load Neutral EMI test
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Figure 12. 110VAC @12V Full Load Line EMI test
Figure 13. 110VAC @12V Full Load Neutral EMI test
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Figure 14. 220VAC @12V Full Load Line EMI test
Figure 15. 220VAC @12V Full Load Neutral EMI test
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Revision History REV. Date Change Notice
DB-00a 11/11/2014 Original Specification