iW1699-03 For 5V3A Small Size 手机充电器Design,30mW.pdf

iWatt CONFIDENTIAL General Design Specification: 1. AC Input Range 90-264VAC 2. DC Output 5V, 3A 3. Meet “30mW” No-Load standby Power Consumption Requirement 4. Meet “DoE” Requirement 5. Meet “USB3.0” Dynamic Load Response Requirement 6. Tight OVP and OTP iW1699-03 for 5V3A Small Size Charger Design (EBC10025) iWatt ConfidentialEBC10025 Jun 28, 2012 2 1. Specification Description Symbol Min Typ Max Units Comment Input Voltage VIN 90 264 VAC 2 Wire Frequency fLINE 47 50/60 63 Hz No-load Input Power (230VAC) 0.03 W Output Output Voltage VOUT 4.75 5.0 5.25 V Measured at the end of PCB Output Current IOUT 0 3 A Output Ripple Voltage VRIPPLE 100 mVP_P Add 0.1uF/10uF capacitors at the end of cable and set oscilloscope at 20MHz bandwidth. Total Output Power Continuous Output Power POUT 15 W Over Current Protection IOCP 3.3 A Auto-restart Active Mode Efficiency (DoE Requirement) ? 81.39 % Measured at end of USB-Connector VIN = 115VAC and 230VAC (TAMB = 25℃). Environmental Conducted EMI Meets CISPR22B / EN55022B Safety Designed to meet IEC950, UL1950 Class II Ambient Temperature TAMB 0 40 °C Free convection, sea level iWatt ConfidentialEBC10025 Jun 28, 2012 3 2. Schematic iWatt ConfidentialEBC10025 Jun 28, 2012 4 Side View Secondary View 3. Circuit Board Photograph V30DL50C (30A 50V) Primary View IPD60R950C6 (4A650V) 36.5mm 36.5mm 20.5mm iW1699-03 Digital Primary VMS Controller iWatt ConfidentialEBC10025 Jun 28, 2012 5 4. Bill of Material Item Qty. Ref. Description 1 1 U1 iW1699-03, Off-line digital PWM Controller, SOIC-8 2 1 BR1 1A 1000V, DB107S,Bridge Diode 3 2 D1,D3 SRGC10DH, 1A100V, Fast Rectifier Diode,SMD-1206S 4 1 D2 SRGC10MH,1A1000V, Fast Rectifier Diode,SMD-1206S 5 2 D4,D7 1N4148, 0.15A 100V,Rectifier Diode,SOD-323,plastic package 6 1 TVS1 ZVS,120V,SOD-123,ARK 7 1 D51 V30DL50C, 30A/50V Schottky Diode, SMPD, VISHAY 8 1 Z51 Zener diode, 6.2V SMD-1206S 9 1 CE1 6.8uF, 400V, E-Cap 8*12 ,Low ESR 10 1 CE2 22uF, 400V, E-Cap 12*18 ,Low ESR 11 1 CE51 1000uF,6.3V, So