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1、2010-12-23 AP3103 12V/2A Demo Board Manual BCD 2010-04-21 2010-12-231 AP3103 Features ?Ultra Low Start-up/Operating Current: 5A/2mA ?Frequency Dithering for Low EMI ?Non-audible-noise for best standby performance ?Totem Pole Output Including Soft Driving & 18V Clamp ?Auto-Recoverable Protection Mode
2、 ?Constant Over Load Protection ?Useful Pin Fault Protection ?CS,RI,FB pins floating ?RI, FB, pin short to ground ?Comprehensive Protection Feature with flexibility ?VCC Over Voltage Protection(VOVP) ?Over Temperature Protection(OTP) ?Short Circuit Protection(SCP) ?Adjustable Oscillator Frequency ?L
3、EB (Leading-Edge Blanking) on CS Pin ?Internal Slope Compensation ?Quick OCP(1.8V) with 100nS delay ?Pin to Pin Compatible with OB2263,RT7731 Green& Current Mode PWM Controller 2010-12-232 1. General Specification 2. Schematic of the PCB 3. BOM of the Demo board 4. Specification of Transformer 5. Ph
4、oto View of the Demo Board 6. Test Results 7. Summary Content 2010-12-233 General Specification YesShort Circuit Protection 2sMAXTurn on delay time 82.1%Efficiency 0.3WStandby Power Dissipation 5%Line& Load Regulation 120mVOutput Ripple 2ARated Output Current 12VRated Output Voltage 90Vac264VacAC In
5、put Voltage 2010-12-234 Schematic of the PCB 2010-12-235 BOM of the Demo board 1For the drain of Q1Bead 1Thermistor, 5 ohm, 9mm, NTC5D-9RT1 1DIODE,SCHOTTKY,10L60,10A,60V,TO-220,ONSEMID8 2DIODE,1N4007,1A,1000V,DO-41D2,D3 1XFM,EF-25,78Ts,1.2mHT1 1BASE,3.96mm,2PINJ2 1BASE,3.96mm,3PIN,3N2J1 1IC,OPTO COU
6、PLER,PC817B,DIP-4U2 1IC,AZ431,SOT-23,BCDU3 1Mosfet-N, 11A,600V,TO-220,11N60C3Q1 1CHOKE,FER,DR6*8,2.2uH,0.6mm wireL3 1Common choke,12mHL2 1Common choke,T12*6*6,5Ts,GL5BL1 1FUSE,SLOW,1A,250VF1 2CAP,Low ESR,AL,470uF,16V,8mm,CapXon,LZC15,C16 1CAP,AL,10uF,50V,6.3mm,Rubycon,YXFC107 1CAP,AL,22uF,50V,6.3mm,
7、Rubycon,YXFC5 1CAP,CD,22nF,1KVC13 1CAP,AL,68uF,400V, Rubycon,YXA,105C12 REFREFREFREFCAP,Y1,220pF,250VCAP,Y1,220pF,250VCAP,Y1,220pF,250VCAP,Y1,220pF,250VC14C14C14C14 1 1 1 1IC,PWM,AP3103,SOT23IC,PWM,AP3103,SOT23IC,PWM,AP3103,SOT23IC,PWM,AP3103,SOT23- - - -6,BCD6,BCD6,BCD6,BCDU1U1U1U1 2DIODE,1N4148,0.
8、15A,100V,LL-34D6,D9 1CAP,0603,683,50V,JC6 1CAP,0603,151,50V,JC3 1CAP,0603,222,50V,JC8 1CAP,0805,102,100V,JC1 1RES,0805,1.6K,JR24 1RES,0805,130K,JR18 1RES,0805,20K,JR15 1RES,0805,750 ohm,JR14 1RES,0805,4.7K,JR12 1RES,0805,18K,FR11 1RES,0805,4.7K,FR10 1RES,0805,1K,JR5 1RES,1206,0 ohm,JRJ1 1RES,1206,1.
9、0M,JR9 3RES,1206,470K,JR8,R21,25 1RES,1206,4.7 ohm,JR7 1RES,1206,10 ohm,JR6 1RES,1206,10 ohm,JR4 1RES,1206,0 ohm,JR3 2RES,1206,1.0M,JR1,R2 2010-12-236 骨架骨架骨架骨架：EF25 磁芯材料磁芯材料磁芯材料磁芯材料：PC40 参数参数参数参数： 1.原边电感量（Pin3-Pin5）：Lp=1.1mH1.3mH ( 10kHz) 2.原边绕组匝数（Pin3-Pin5）： Np=78T 3.付边绕组匝数（Pin8,9-Pin10）： Ns=8T 4.原
10、边辅助绕组匝数（Pin1-Pin2）： Na=10T Specification of Transformer 2010-12-237 Specification of Transformer 制作步骤： 1. PIN 5-悬空，0.15mm漆包线三股并绕，共28圈,绕满一层，不能重叠；再加一层胶布； 2. PIN 3-PIN 5，0.32mm漆包线单股，共78圈，每层39Ts，不能重叠，再加一层胶布； 3. 屏蔽铜箔13mm宽，绕在骨架中心位置，两端稍微重叠，但要用胶布隔离，不能短路， 用0.15mm漆包线连到PIN 5，再加两层胶布； 4. 翻转骨架翻转骨架翻转骨架翻转骨架； 5. PIN
11、 8,9-PIN 10，0.4mm三层绝缘线三股并绕，共8圈, 绕满一层，加两层胶布； 6. PIN 1-PIN 2，0.15mm漆包线单股，共10圈，疏绕，加三层胶布； 7. PIN 3-PIN 5的电感量控制在1.1mH 1.3mH；气隙一定要磨磁芯中柱，不能垫气隙； 2010-12-238 Photo View of the Demo Board Top view Dimension:105mm*50mm 2010-12-239 Photo View of the Demo Board Bottom view Dimension:105mm*50mm 2010-12-2310 ? Eff
12、iciency ? Power Saving ?Over Current Protection ? Ripple & Noise ? Dynamic ? Overshoot ? Start-up Time ? Hold-on Time ? EMI Test Results 2010-12-2311 85.08 84.68 82.84 83.11 83.91 84.67 84.78 83.94 EFF (%) 2A12.07 1.5A12.07 1.0A12.07 83.93 0.5A12.07 230V 2A12.06 1.5A12.06 1.0A12.06 84.32 0.5A12.06 1
13、15V Average EFF(%)Io (A)Vo (V)Vin (AC) Efficiency (No Output Cable) Note: meets EPS V2.0. The average of EPS V2.0 is 82.1%. 2010-12-2312 0.500.751.001.251.501.752.00 80 81 82 83 84 85 86 87 Vin=230Vac Efficiency (%) Output Current (A) Vin=115Vac Efficiency VS Output Current 2010-12-2313 Power Saving
14、 (Io=0A) 80100120140160180200220240260 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.20 0.21 0.22 0.23 0.24 0.25 Input Power (W) Line Voltage (V) 2010-12-2314 Over Current Protection 80100120140160180200220240260 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Output Current (A) Line Voltage (V) 2010-12-2315 Outp
15、ut Ripple & Noise (Low frequency) V=89.5mV Vin=115Vac Vo: 50mV/div t: 2ms/div V=82.0mV Vin=230Vac Vo: 50mV/div t: 2ms/div 2010-12-2316 Output Ripple & Noise (High frequency) Vin=230Vac V=65.0mV Vo: 50mV/div t: 20us/div V=68.0mV Vin=115Vac Vo: 50mV/div t: 20us/div 2010-12-2317 Output Load Dynamic V=474mV Vin=115VacVin=230Vac V=410mV Test condition:0-2A, Dwell time:50ms, Slew Rate: 0.5A/us. Vo: 200mV/div t: 20ms/divVo: 200mV/div t: 20ms/div