Subject LD5515 Demo Board Model Name (5V/1.5A) Key Features Built-In Pump Express TM Operation Flyback topology with PSR Control Constant Voltage Constant Current High Efficiency with QR Operation (Meet DOE-6) Low Power Saving 1
USB Adapter Design Check List Pump Express TM Solution_7.5W USB Adapter MODEL NAME LD5515_DB-00 TOTAL PAGE: 18(Page) Engineer Kevin / Yichuan DATE: 2014/1/3 NO. TEST ITEM SPEC. NAME. PAGE RESULT 1 Input Characteristics - Efficiency >76.65% Kevin 9 ~ 9 PASS 2 Input Characteristics TM Efficiency with Pump Express NA Yichuan 10 ~ 10 NA 3 Input Characteristics - Power Saving <75mW Kevin 11 ~ 11 PASS 4 Output Characteristics CV-CC Regulation NA Kevin 12 ~ 12 NA 5 Output Characteristics CV-CC with Pump Express TM NA Yichuan 13 ~ 13 NA 6 Output Characteristics Ripple voltage <80mV Kevin 14 ~ 14 PASS 7 Turn On Delay Time < 3 sec Kevin 15 ~ 15 PASS 8 Power Component Stress Voltage < 90% Kevin 16 ~ 16 PASS 9 EMI Test - Conduction 10 EMI Test - Radiation EN55022 Class-B CISPR Class-B Kevin 17 ~ 18 PASS Kevin 19 ~ 20 PASS 2
Contents Index 1. USB ADAPTER SPECIFICATION... 5 1.1. INPUT CONDITION... 5 1.2. OUTPUT CONDITION... 5 1.3. AMBIENT TEMPERATURE... 5 2. USB ADAPTER APPLICATION CIRCUIT... 6 2.1. SCHEMATIC... 6 2.2. BOM LIST... 7 2.3. TRANSFORMER SPECIFICATION... 8 3. EXECUTIVE SUMMARY... 9 3.1. INPUT CHARACTERISTICS... 9 3.1.1. Efficiency... 9 3.1.2. Efficiency with Pump Express TM Operation... 10 3.1.3. Power Saving... 11 3.2. OUTPUT CHARACTERISTICS... 12 3.2.1 Constant Voltage and Constant Current... 12 3.2.2 Constant Voltage and Constant Current with Pump Express TM Operation... 13 3.2.3 RIPPLE VOLTAGE... 14 3.3. TURN ON DELAY TIME... 15 3.4. POWER COMPONENT STRESS VOLTAGE... 16 3.5. EMI TEST-CONDUCTION... 17 3.6. EMI TEST-RADIATION... 19 3
Table Index Table 1, Efficiency @ Input Voltage = 115Vac / 230Vac... 9 Table 2, Efficiency with Pump Express TM Operation... 10 Table 3, Power Saving... 11 Table 4, CV-CC Regulation... 12 Table 5, Constant Voltage and Constant Current with Pump Express TM Operation.. 13 Table 6, Turn On Delay Time... 15 Table 7, BJT and Diode Stress Voltage @ Steady State (90V/ 60Hz)... 16 Table 8, BJT and Diode Stress Voltage @ Transient State (90V/ 60Hz)... 16 Table 9, BJT and Diode Stress Voltage @ Steady State (264V/ 60Hz)... 16 Table 10, BJT and Diode Stress Voltage @ Transient State (264V/ 60Hz)... 16 Figure Index Fig. 1, Load vs. Efficiency... 9 Fig. 2, Vac vs. Power Saving... 11 Fig. 3, CV-CC Curve... 12 Fig. 4, Constant Voltage and Constant Current with Pump Express TM Operation... 13 Fig. 5, Output Ripple @ 90Vac/47Hz... 14 Fig. 6, Output Ripple @ 264Vac/60Hz... 14 Fig. 7, Start-up Waveforms @ 90Vac/47Hz... 15 Fig. 8, 220VAC Line EMI-Conduction Test... 17 Fig. 9, 220VAC Neutral EMI-Conduction Test... 18 Fig. 10, 220VAC Horizontal EMI-Radiation Test... 19 Fig. 11, 220VAC Vertical EMI-Radiation Test... 20 4
1. USB Adapter Specification Pump Express TM Solution_7.5W USB Adapter 1.1. Input Condition AC Input Voltage : 90VAC ~ 264VAC AC Input Frequency : 47Hz ~ 63Hz 1.2. Output Condition Output Voltage : 5V with Pump Express TM Operation Output Current : Typical 1.5A 1.3. Ambient Temperature Ambient Temperature 25 o C 5
2. USB Adapter Application Circuit 2.1. Schematic 6
2.2. BOM List P/N Component Value Note R1 1.5MΩ, 1206 R2 1.5MΩ, 1206 R3 23.7kΩ, 0603 R5 470kΩ, 1206 R6 1Ω, 0603 R7 68.1kΩ, 0603 R8 47Ω, 0805 R9 2.37Ω, 1206 R10 2.49Ω, 1206 R11 10pF, 0603, 50V R13 22Ω, 1206 R14 1.5KΩ, 1206 R17 100Ω, 1206 C1 10 F, 400V C2 10 F, 400V C3 2.2 F, 50V C4 470pF, 0603, 50V C5 1000pF, 0603, 50V C6 1000pF, 1kV C7 1000 F, 10V C8 820 F, 10V C10 0.1 F, 0603, 50V P/N Component Value Note D2 SB540 BD1 TB6S U1 LD5515 Q1 APT13005EZ-E1 RF1 6.8Ω, 1W T1 EE-16 L1 1mH L2 2.2 H L3,L4 Bead core 601A30T King core 7
2.3. Transformer Specification Pump Express TM Solution_7.5W USB Adapter Bobbin:EE16 Core:EE16, PC40 Inductance:1500uH (40kHz, 1V) N P /N S /N aux :142/11/17 Pin 5 Pin 9 Pin 1 Pin 10 Winding No. Start Terminal Finish Terminal Wire AWG No. Winding Turns Layer No. Tape Turns Remark N1 2 1 0.17Φ 142T 4 1 密繞 N2 4 F 0.17Φ 6T 1 3 疏繞 N3 9 10 0.55Φ TEX-E 11T 1 2 密繞 N4 4 F 0.17Φ 4T 1 2 疏繞 N5 5 4 0.17 X2Φ 17T 1 1 密繞 Note : CORE 需貼自黏銅箔焊引線接至 Pin 1 8
3. Executive Summary Pump Express TM Solution_7.5W USB Adapter Test Equipment Equipment Equipment Model No. Electrical Load Chroma 63030 Power Meter WT210 AC power source Chroma 61602 Scope TDS3014 3.1. Input Characteristics 3.1.1. Efficiency Specification Result >76.654% (DOE-6) PASS Note: Measure P O, V O, I O with USB Port AC Input 115 Vac 60 Hz 230 Vac 60 Hz P in (W) P o (W) V o (V) Io (A) Efficiency 10.11 7.66 5.104 1.5008 75.76% 7.518 5.752 5.11 1.1258 76.51% 4.975 3.836 5.109 0.7509 77.1% 2.454 1.910 5.082 0.3759 77.83% 0.989 0.76 5.037 0.1509 76.84% 9.908 7.647 5.092 1.501 77.18% 7.413 5.743 5.101 1.1259 77.47% 4.942 3.836 5.108 0.7509 77.63% 2.474 1.902 5.063 0.3759 76.91% 1.051 0.758 5.022 0.1509 72.05% Table 1, Efficiency @ Input Voltage = 115Vac / 230Vac Average Eff. 76.8 % 77.3 % Fig. 1, Load vs. Efficiency 9
3.1.2. Efficiency with Pump Express TM Operation Pump Express TM Solution_7.5W USB Adapter Specification NA Note: Measure P O, V O, I O at PCB Result NA AC Input 115 Vac 60 Hz Load Level-1 (5.0V) Level-2 (4.8V) Level-3 (4.6V) Efficiency Test Level-4 (4.4V) Level-5 (4.2V) Level-6 (4.0V) Level-7 (3.8V) Level-8 (3.6V) 100% 78.69% 78.17% 78.04% 77.57% 77.18% 77.02% 76.35% 75.96% 75% 79.31% 78.82% 78.54% 78.25% 77.80% 77.61% 76.95% 76.64% 50% 80.16% 79.36% 79.39% 78.80% 78.47% 78.36% 77.59% 77.46% 25% 80.55% 80.43% 80.18% 80.04% 79.81% 79.72% 78.99% 78.67% Avg. 79.68% 79.20% 79.04% 78.67% 78.32% 78.18% 77.47% 77.18% 230 Vac 60 Hz 100% 79.40% 79.06% 78.90% 78.38% 77.91% 77.49% 76.91% 76.55% 75% 79.49% 79.21% 79.09% 78.49% 77.93% 77.57% 76.92% 76.56% 50% 79.66% 79.07% 79.04% 78.57% 78.15% 77.97% 77.22% 77.10% 25% 78.93% 78.35% 78.64% 78.33% 77.43% 76.92% 76.92% 75.99% Avg. 79.37% 78.92% 78.92% 78.44% 77.86% 77.49% 76.99% 76.55% Table 2, Efficiency with Pump Express TM Operation 10
3.1.3. Power Saving Specification <75mW @230Vac Result PASS Note: Burn-In 10 min Pin No-Load Consumption Vac (mw) 90Vac/60Hz 34 115Vac/60Hz 38 230Vac/60Hz 53 264Vac/60Hz 65 Table 3, Power Saving Fig. 2, Vac vs. Power Saving 11
3.2. Output Characteristics 3.2.1 Constant Voltage and Constant Current Specification NA Result NA Note: Measure P O, V O, I O at connector of USB cable Vac 90 264 CV Mode CC Mode Vo (V) Io (A) Vo (V) Io (A) 5.068 1.5 5.068 1.805 5.067 1.125 4.5 1.803 5.079 0.75 4 1.799 5.08 0.375 3.5 1.794 4.988 0 3 1.786 5.027 1.5 5.068 1.846 5.05 1.125 4.5 1.845 5.066 0.75 4 1.843 5.04 0.375 3.5 1.837 4.97 0 3 1.831 Table 4, CV-CC Regulation Fig. 3, CV-CC Curve 12
3.2.2 Constant Voltage and Constant Current with Pump Express TM Operation Specification Result NA NA Note: Measure P O, V O, I O at PCB (Vin=115Vac) Level-1 Level-2 Level-3 Level-4 Vo (V) Io (A) Vo (V) Io (A) Vo (V) Io (A) Vo (V) Io (A) 5.02 0.0 5.02 0.0 5.01 0.0 5.01 0.0 5.03 0.75 4.82 0.75 4.68 0.75 4.39 0.75 5.03 1.5 4.82 1.5 4.68 1.5 4.40 1.5 4.8 1.88 4.6 1.90 4.4 1.90 4.2 1.90 3.4 1.87 3.4 1.89 3.4 1.89 3.4 1.90 Level-5 Level-6 Level-7 Level-8 5.01 0.0 5.02 0.0 5.02 0.0 5.01 0.0 4.12 0.75 3.98 0.75 3.70 0.75 3.57 0.75 4.13 1.5 3.99 1.5 3.72 1.5 3.58 1.5 4.0 1.90 3.8 1.90 3.6 1.90 3.6 1.89 3.4 1.90 3.4 1.90 3.4 1.90 3.4 1.89 Table 5, Constant Voltage and Constant Current with Pump Express TM Operation Fig. 4, Constant Voltage and Constant Current with Pump Express TM Operation 13
3.2.3 Ripple voltage Pump Express TM Solution_7.5W USB Adapter Input 90Vac /47Hz 264Vac/ 60Hz Ripple voltage 75.2mV 26mV Specification Result < 80mV PASS Note: Measure P O, V O, I O at USB Port Fig. 5, Output Ripple @ 90Vac/47Hz Fig. 6, Output Ripple @ 264Vac/60Hz 14
3.3. Turn On Delay Time Pump Express TM Solution_7.5W USB Adapter Input 90Vac /47Hz T turn on delay 2.16 sec Specification Result < 3 sec PASS Table 6, Turn On Delay Time CH1:V ac, CH2:V cc, CH3:Vo Fig. 7, Start-up Waveforms @ 90Vac/47Hz 15
3.4. Power Component Stress Voltage Pump Express TM Solution_7.5W USB Adapter Specification Derating < 90% Result PASS No. Item Steady State(90V / 60HZ) Max. Rating(V) Measurement Derating(%) V V 1 Q1 700 318 45.43% 2 D1 45 17.5 38.89% Table 7, BJT and Diode Stress Voltage @ Steady State (90V/ 60Hz) No. Item Transient State(90V / 60HZ) Max. Rating(V) Measurement Derating(%) V V 1 Q1 700 358 51.14% 2 D1 45 15 33.33% Table 8, BJT and Diode Stress Voltage @ Transient State (90V/ 60Hz) No. Item Max. Rating(V) Steady State(264V / 60HZ) Measurement Derating(%) V 1 Q1 700 580 82.86% 2 D1 45 38.4 85.33% Table 9, BJT and Diode Stress Voltage @ Steady State (264V/ 60Hz) No. Item Max. Rating(V) Transient State(264V / 60HZ) Measurement Derating(%) V 1 Q1 700 562 80.29% 2 D1 45 37.4 83.11% Table 10, BJT and Diode Stress Voltage @ Transient State (264V/ 60Hz) 16
3.5. EMI Test-Conduction Pump Express TM Solution_7.5W USB Adapter Specification EN55022 Class-B Result PASS Note:with 3.3 Resistive Load Fig. 8, 220VAC Line EMI-Conduction Test 17
Fig. 9, 220VAC Neutral EMI-Conduction Test 18
3.6. EMI Test-Radiation Specification CISPR Class-B Result PASS Note:with 3.3 Resistive Load Fig. 10, 220VAC Horizontal EMI-Radiation Test 19
Fig. 11, 220VAC Vertical EMI-Radiation Test 20