mtk/pe+ 12v/1.8a charger design - leadtrend.com.tw · mtk/pe+ 12v/1.8a charger design...

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


LD5516C_DB-00a


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


LD5516C_DB-00a


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


LD5516C_DB-00a


Table Index

Table 1. Efficiency Measurement @12V ........................................................................................ 10

Table 2. Efficiency Measurement @9V ........................................................................................... 10



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


LD5516C_DB-00a


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


LD5516C_DB-00a


2. APPLICATION CIRCUIT

2.1 Schematic


LD5516C_DB-00a


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


LD5516C_DB-00a


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%


LD5516C_DB-00a


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


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%


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%



LD5516C_DB-00a



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%


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%



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


LD5516C_DB-00a


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


LD5516C_DB-00a


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


LD5516C_DB-00a


3.2 Output Characteristics 3.2.1 Ripple Noise

Specification Result 5V Vp2p < 100mV PASS

7V Vp2p < 100mV PASS



NOTE: Measured with 22AWG 1.2m cable

5V ripple noise @90V full load





LD5516C_DB-00a







LD5516C_DB-00a


3.2.2 Constant Voltage and Constant Current

Specification Result NA NA


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


LD5516C_DB-00a


3.2.3 Constant Voltage and Constant Current with Pump Express PlusTM Operation



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


LD5516C_DB-00a


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


LD5516C_DB-00a


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


LD5516C_DB-00a


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


LD5516C_DB-00a


3.6 Dynamic Load Response

Specification Result Rating Vout ±10% PASS


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











LD5516C_DB-00a


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


LD5516C_DB-00a


3.8 Output UVP


Vin: 90VAC 5V UVP = 3.36V



Vin: 90VAC 12V UVP = 10V


LD5516C_DB-00a







LD5516C_DB-00a


3.9 Output Discharge Time

Specification Result < 500mS PASS

Vin: 115VAC Io: 12V 1.8A→0A Discharge Time: 470mS





LD5516C_DB-00a




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)


LD5516C_DB-00a


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)


LD5516C_DB-00a


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


LD5516C_DB-00a





LD5516C_DB-00a


Revision History REV. Date Change Notice

DB-00a 11/11/2014 Original Specification

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