Subject LD9852 Demo Board Manual Model Name (45V/200mA) TOP VIEW BOTTOM VIEW Size 34.2mm(L)ⅹ26mm(W)ⅹ18mm(H) Key Features Buck Topology Current Accuracy < 5% Single Stage PFC > 0.9 @ Normal Line Efficiency > 89% LED Short / Open protection Meet IEC55015 EMI Test - Conduction Meet IEC61000-4-5 Surge Test Meet IEC61000-3-2 Class C THD Test 1
Lighting Power Design Check List MODEL NAME TOTAL PAGE: 24(Page) P.M. Scott Lin DATE: 2014(Y)/ 03(M)/ 12(D) NO. TEST ITEM SPEC. NAME. PAGE RESULT 1 Input Characteristics - Efficiency > 89% Hunter 10 ~ 10 PASS 2 Input Characteristics - Power Factor (@ Normal Line) 3 Input Characteristics - THD of Input Current > 0.9 Hunter 11 ~ 11 PASS IEC61000-3-2 Class C Hunter 12 ~ 12 NA 4 Output Characteristics - Current Accuracy < 5% Hunter 13 ~ 13 PASS 5 Output Characteristics Current Ripple TBD Hunter 14 ~ 14 NA 6 Turn On Delay Time < 0.5s Hunter 15 ~ 15 NA 7 Abnormal Test - LED Open Voltage Test < 58V Hunter 15 ~ 15 PASS 8 Abnormal Test - LED Short Dissipation Test < 0.5W Hunter 16 ~ 16 PASS 9 Abnormal Test - Over Temp. Protection Test Function Hunter 16 ~ 16 PASS 10 Power Component Stress Voltage < Derating Hunter 17 ~ 17 PASS 11 AC On/Off Test TBD Hunter 19 ~ 19 NA 12 EMI Test - Conduction IEC55015 Hunter 21 ~ 22 PASS 13 EMS Test Surge IEC61000-4-5 Hunter 23 ~ 23 PASS 14 Thermal Test < 60 C Hunter 24 ~ 24 PASS 2
Contents Index 1. LED DRIVER MODULE SPECIFICATION... 5 1.1. INPUT CONDITION... 5 1.2. OUTPUT CONDITION... 5 1.3. PROTECTION CONDITION... 5 1.4. AMBIENT TEMPERATURE... 5 2. LED DRIVER APPLICATION CIRCUIT... 6 2.1. SCHEMATIC... 6 2.2. BOM LIST... 7 2.3. PCB GERBER FILE... 8 2.4. INDUCTOR SPECIFICATION... 9 3. EXECUTIVE SUMMARY... 9 3.1. INPUT CHARACTERISTICS... 10 3.1.1. Efficiency... 10 3.1.2. Power Factor... 11 3.1.3. THD of Input Current... 12 3.2. OUTPUT CHARACTERISTICS... 13 3.2.1 Current Accuracy... 13 3.2.2 Current Ripple... 14 3.3. TURN ON DELAY TIME... 14 3.4. ABNORMAL TEST... 15 3.4.1. LED Open Voltage Test... 15 3.4.2. LED Short Dissipation Test... 16 3.4.3. Over Temp. Protection Test... 16 3.5. POWER COMPONENT STRESS VOLTAGE... 17 3.6. DRAIN VOLTAGE AND INDUCTOR CURRENT WAVEFORMS... 18 3.7. AC ON/OFF TEST... 19 3.8. EMI TEST... 20 3.9. SURGE TEST... 22 3.11. THERMAL TEST... 23 3
Table Index Table 1 Efficiency @ CV Load = 45V... 10 Table 2 Efficiency @ LED Load = 45V... 10 Table 3 Power Factor... 11 Table 4 THD of Input Current... 12 Table 5 Output Current (ma)... 13 Table 6 Current Ripple (%) @ LED Load = 45V... 14 Table 7 Turn On Delay Time... 14 Table 8 Over Voltage Level... 15 Table 9 Input Power during LED short... 16 Table 10 Drain PIN and Diode Stress Voltage @ Steady State (90V/ 60Hz)... 17 Table 11 Drain PIN and Diode Stress Voltage @ Transient State (115V/ 60Hz)... 17 Table 12 Drain PIN and Diode Stress Voltage @ Steady State (230V/ 60Hz)... 17 Table 13 Drain PIN and Diode Stress Voltage @ Transient State (264V/ 60Hz)... 17 Table 14 Turn on delay time... 19 Table 15 Max. Drain Voltage @ 264Vac/60Hz... 19 Table 16 Surge Test... 23 Table 17 Thermal Test @ Open frame... 23 Figure Index Fig. 1 Vac vs. Efficiency... 10 Fig. 2 Vac vs. PF... 11 Fig. 3 Vac vs. THDi... 12 Fig. 4 Start-up Waveforms @ 90Vac/60Hz... 14 Fig. 5 LED Open Test @ 90Vac/60Hz Fig. 6 LED Open Test @ 264Vac/60Hz... 15 Fig. 7 LED Short Test @ 90Vac/60Hz Fig. 8 LED Short Test @ 264Vac/60Hz... 16 Fig. 9 Over Temp. Protection @ 115Vac/60Hz Fig. 10 Over Temp. Protection @ 230Vac/60Hz... 16 Fig. 11 Drain & IL waveforms @ 115Vac/60Hz Fig. 12 Drain & IL waveforms @ 115Vac/60Hz/Zoom-In... 18 Fig. 13 Drain & IL waveforms @ 230Vac/60Hz Fig. 14 Drain & IL waveforms @ 230Vac/60Hz/Zoom-In... 18 Fig. 15 AC On/Off Test @ 115Vac/60Hz/90 o Fig. 16 AC On/Off Test @ 230Vac/60Hz/90 o... 19 Fig. 17 Max. Drain Voltage @ 264Vac/60Hz On/Off Test... 19 Fig. 18 110VAC Line EMI test... 20 Fig. 19 110VAC Neutral EMI test... 21 Fig. 20 220VAC Line EMI test... 21 Fig. 21 220VAC Neutral EMI test... 22 4
1. LED Driver Module 1.1. Input Condition AC Input Voltage : 90VAC ~ 264VAC AC Input Frequency : 47Hz ~ 63Hz 1.2. Output Condition Output Voltage : 45V (15 pcs LED) Output Current : Typical 200mA 1.3. Protection Condition LED Open Protection Auto-recovery, Hiccup 1 times LED short Protection Auto-recovery, Hiccup 1 times Over Temp. Protection Auto-recovery, Hiccup 1 time 1.4. Ambient Temperature Ambient Temperature 25 o C 5
2. LED Driver Application Circuit Buck Solution_9W LED Driver for Bulb 2.1. Schematic F1 2A/250V R13 0R L3 NC R1 360K/1206 2 COMP 6 ZCD 1 Source VCC 8 1 1 N L 1 1 CX1 NC + 3 C3 1uF/0805 C4 10uF/35V/1206 5 GND IC1 LD9852 R3 0/1206 1R/1210 R10 R11 NC R5 620K/1206 R6 51K/0805 C6 100uF/63V R12 100K/0805 1 1 LED+ 1 1 LED- 2 AC AC 1 RL2 NC L1 NC L5 NC RL4 NC 4 BD1 ABS8 V1 TVR 471 C1 104J/400V L2 4.7mH R15 NC C2 104J/400V Drain D1 ER2J/SMB D2 US1006FL/SOD123 L4 EPC13 /780uH N1=156T N2=55T - 3 R2 360K/1206 4 6
2.2. BOM List P/N Component Value Note RL2 NC, 0805 YAGEO R1 360KΩ, 1206, ±5% YAGEO R2 360KΩ, 1206, ±5% YAGEO R3 0Ω,0805, ±5% YAGEO R5 620KΩ,1206, 1% YAGEO R6 51KΩ,0805, ±1% YAGEO R10 1Ω,1210, 1% YAGEO R11 NC,1210 YAGEO R12 100KΩ,0805, ±5% YAGEO R13 0Ω,0805, ±5% YAGEO L1 NC L2 L3 4.7mH MCD-0808-472KU NC MAG. layers L4 780uH, EPC13 LD design L5 NC C1 104J / 400V NA C2 104J / 400V NA C3 1uF, 10V, 0603 NA C4 10uF,35V,1206,X7R GRM32ER7YA106KA12 NA C6 100uF, 63V, E-cap HZ C7 NC, 1206 D1 ER2J Panjit D2 US1006FL Panjit BD1 ABS8 Panjit V1 471 NA F1 2A/250V Fuse NA IC1 LD9852 Leadtrend 7
2.3. PCB Gerber File Buck Solution_9W LED Driver for Bulb TOP VIEW BOTTOM VIEW 8
2.4. Inductor Buck Solution_9W LED Driver for Bulb Bobbin : EPC13, 10PIN Core : EPC13, PC40,Ae=12.5mm Inductance(PIN 2-9) : 780uH ±5% @1KHZ/1V NP/ NVcc: 156 / 55 3. Executive Summary Test Equipment Equipment Equipment Model No. Electrical Load Chroma 63030 Power Meter WT210 AC power source Chroma 61602 Scope TDS3014 Multi-function Meter Fluke 187 Thermal Hunter PT-3S 9
3.1. Input Characteristics 3.1.1. Efficiency Buck Solution_9W LED Driver for Bulb > 89% PASS Eff.(%) P in I o V o Efficiency (W) (ma) (V) (%) 90Vac/60Hz 9.883 197.9 45.076 90.26 115Vac/60Hz 9.754 197.8 45.076 91.40 230Vac/60Hz 9.816 198.7 45.076 91.24 264Vac/60Hz 9.890 198.9 45.076 90.65 Table 1 Efficiency @ CV Load = 45V Eff.(%) P in I o V o Efficiency (W) (ma) (V) (%) 90Vac/60Hz 9.838 198 44.443 89.44 115Vac/60Hz 9.709 198 44.459 90.66 230Vac/60Hz 9.775 198.9 44.503 90.55 264Vac/60Hz 9.837 199.1 44.501 90.07 Table 2 Efficiency @ LED Load = 45V Fig. 1 Vac vs. Efficiency 10
3.1.2. Power Factor Buck Solution_9W LED Driver for Bulb > 0.9 @ Normal Line PASS PF CV:42V CV:45V CV:48V LED:45V 90Vac/60Hz 0.9842 0.9807 0.9764 0.9822 115Vac/60Hz 0.9867 0.9862 0.9855 0.9820 230Vac/60Hz 0.9058 0.9145 0.9218 0.9231 264Vac/60Hz 0.8624 0.8738 0.8807 0.8844 Table 3 Power Factor Fig. 2 Vac vs. PF 11
3.1.3. THD of Input Current Buck Solution_9W LED Driver for Bulb IEC61000-3-2 Class C PASS THD i (%) CV:42V (%) CV:45V (%) CV:48V (%) LED: 45V (%) 90Vac/60Hz 18.88 20.96 23.07 20.50 115Vac/60Hz 15.55 16.55 17.18 15.42 230Vac/60Hz 25.92 25.01 24.52 23.25 264Vac/60Hz 30.55 29.48 28.60 28.28 Table 4 THD of Input Current Fig. 3 Vac vs. THDi 12
3.2. Output Characteristics 3.2.1 Current Accuracy Buck Solution_9W LED Driver for Bulb < 5% PASS Output Current (ma) 90Vac/ 60Hz 115Vac/ 60Hz 230Vac/ 60Hz 264Vac/ 60Hz Line Regulation(%) CV=48V 197.9 197.7 198.4 198.8 0.277 CV=45V 197.9 197.8 198.6 199 0.302 CV=42V 197.8 197.7 198.6 199.1 0.352 Load Regulation(%) 0.025 0.025 0.050 0.075 0.352 LED=45V 198 198 198.9 199.1 0.277 Table 5 Output Current (ma) LED ACC% = (Max-Min) / (Max+Min) = 0.352% 13
3.2.2 Current Ripple TBD NA Definition of Current Ripple (%): I PK-PK / I o * 100 CR(%) 90Vac/ 60Hz 115Vac/ 60Hz 230Vac/ 60Hz 264Vac/ 60Hz I o (ma) 197.9 197.8 198.6 199 I PK-PK (ma) 165 152 131 129 CR(%) 83.37 76.84 65.96 64.82 Table 6 Current Ripple (%) @ LED Load = 45V 3.3. Turn On Delay Time TBD NA Input 115Vac T turn on delay 565mS Table 7 Turn On Delay Time Fig. 4 Start-up Waveforms @ 90Vac/60Hz CH1:V ac, CH4:I o 14
3.4. Abnormal Test 3.4.1. LED Open Voltage Test < 58V (VLED*1.3) PASS Input Voltage 115VAC/60Hz 230VAC/60Hz Output Voltage 52.6V 52.4V Table 8 Over Voltage Level Fig. 5 LED Open Test @ 90Vac/60Hz CH1: VDrain, CH2:VCC Fig. 6 LED Open Test @ 264Vac/60Hz CH1: VDrain, CH2:VCC 15
3.4.2. LED Short Dissipation Test < 0.5W PASS Input Voltage 90VAC/60Hz 115VAC/60Hz 230VAC/60Hz 264VAC/60Hz Input Power 55.59mW 85.13mW 277mW 357mW Table 9 Input Power during LED short Fig. 7 LED Short Test @ 90Vac/60Hz CH1: VDrain, CH2:VCC Fig. 8 LED Short Test @ 264Vac/60Hz CH1: VDrain, CH2:VCC 3.4.3. Over Temp. Protection Test Function PASS Fig. 9 Over Temp. Protection @ 115Vac/60Hz CH1: VDrain, CH2:VCC Fig. 10 Over Temp. Protection @ 230Vac/60Hz CH1: VDrain, CH2:VCC 16
3.5. Power Component Stress Voltage < Derating PASS No. Location Steady State(90V / 60HZ) Max. Rating(V) Measurement Derating(%) V V 1 Drain 620 191 30.81% 2 D1 600 151 25.17% Table 10 Drain PIN and Diode Stress Voltage @ Steady State (90V/ 60Hz) No. Location Transient State(115V / 60HZ) Max. Rating(V) Measurement Derating(%) V V 1 Drain 620 251 40.48% 2 D1 600 201 33.50% Table 11 Drain PIN and Diode Stress Voltage @ Transient State (115V/ 60Hz) No. Location Steady State(230V / 60HZ) Max. Rating(V) Measurement Derating(%) V V 1 Drain 620 482 77.74% 2 D1 600 382 63.67% Table 12 Drain PIN and Diode Stress Voltage @ Steady State (230V/ 60Hz) No. Location Transient State(264V / 60HZ) Max. Rating(V) Measurement Derating(%) V V 1 Drain 620 562 90.65% 2 D1 600 422 70.33% Table 13 Drain PIN and Diode Stress Voltage @ Transient State (264V/ 60Hz) 17
3.6. Drain Voltage and Inductor Current Waveforms Fig. 11 Drain & IL waveforms @ 115Vac/60Hz CH1: Drain, CH4: I L Fig. 12 Drain & IL waveforms @ 115Vac/60Hz/Zoom-In CH1: Drain, CH4: I L Fig. 13 Drain & IL waveforms @ 230Vac/60Hz CH1: Drain, CH4: I L Fig. 14 Drain & IL waveforms @ 230Vac/60Hz/Zoom-In CH1: Drain, CH4: I L 18
3.7. AC On/Off Test TBD NA Input Voltage 115VAC/60Hz 230VAC/60Hz Turn on delay 414mS 165.6mS Table 14 Turn on delay time Power On: 1000mS & Power Off 1000mS Fig. 15 AC On/Off Test @ 115Vac/60Hz/90 o CH1: Vac, CH2:VDrain, CH4:I o Fig. 16 AC On/Off Test @ 230Vac/60Hz/90 o CH1: Vac, CH2:VDrain, CH4:I o Input Voltage 264V AC /60Hz Max. Drain voltage 562V Table 15 Max. Drain Voltage @ 264Vac/60Hz Fig. 17 Max. Drain Voltage @ 264Vac/60Hz On/Off Test CH1: Vac, CH2:VDrain, CH4:I o 19
Note: The voltage spike of Drain is induced from inrush current at power on instantaneously. It s easy to be observed while phase of AC input is 90 o or 270 o. 3.8. EMI Test Meet IEC55015, < 6db PASS Fig. 18 110VAC Line EMI test 20
Fig. 19 110VAC Neutral EMI test Fig. 20 220VAC Line EMI test 21
Fig. 21 220VAC Neutral EMI test 3.9. Surge Test Meet IEC61000-4-5 PASS EUT Line: 220Vac 2PIN 3PIN System Spec.: 45V / 200mA Waveform 1.2/50 10/700 Ring Impedance 12ohm 2ohm Repetition Once each 20 second period with 5 transients per test NOTE: LD9852 Real Demo Board Test Mode Phase & Level (V) Test Result L/N 90 +0.5K -0.5K 270 +0.5K -0.5K PASS PASS NOTE: 22
Table 16 Surge Test 3.11. Thermal Test < 60 C PASS No. Location 1 L4 150 2 C6 125 3 IC1 150 4 D1 150 Ambient Max. Derating(%) 90V/60Hz(.) 115V/60Hz(.) 230V/60Hz(.) 264V/60Hz(.) Rating(.) 90V/60Hz 264V/60Hz 42.7 43 49 51.8 28.46 34.53 40.7 39.4 36.2 44 32.56 35.2 48.7 47.8 50.7 53.9 32.46 35.93 43.1 43.7 46.7 47.8 28.73 31.86 25.0 25.0 25.0 25.0 Table 17 Thermal Test @ Open frame -- -- 23