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Motore di ricerca datesheet componenti elettronici |
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ACE70340AN+ Scheda tecnica(PDF) 4 Page - ACE Technology Co., LTD. |
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ACE70340AN+ Scheda tecnica(HTML) 4 Page - ACE Technology Co., LTD. |
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4 / 16 page  ACE703 Technology White LED PFM Step-Up DC-DC Converter VER 1.2 4 Electrical Characteristics (Vin＝2.5V， VCE=Vout＝3.3V，R＝33Ω，TA=25°C, unless otherwise noted.) Reference data Symbol Item Test conditions Min Typ. Max Unit 80 100 120 180 200 220 230 250 270 280 300 320 330 350 370 VIFB Feedback voltage Iout=100mA 380 400 420 mV Vstart Start-up voltage Iout=1mA， Vin：0 →2V 0.8 0.9 V Vhold Hold-on voltage Iout=1mA， Vin：2 →0V 0.6 0.7 V IDD2*5 Quiescent current drawn from power source LX hung in air, VCE=VIFB= Vout=3.3V, Vin=2.5V 20 30 uA Inoload*6 Current with no load OUT pin and IFB pin without any load, VIFB=0 100 150 uA ILX LX switching current Vlx=0.4V，VIFB=0 700 mA ILXleak LX leakage current Vout=Vlx=VIFB=6V, 1 uA Ileak Stand-by current Vout=3.3V, VCE=0, LX、IFB hung in air < 0.1 0.5 uA Fosc Oscillator frequency VIFB=0， 300 350 400 kHZ Maxdty Oscillator duty cycle On（Vlx “L”）side 70 75 80 ％ η Efficiency Iout=300mA 80 ％ VCEH CE “H” threshold voltage VCE：0→2V 0.6 0.9 V VCEL CE “L” threshold voltage VCE：2→0V 0.3 0.6 V IOM Maximum output current VIFB=0，Vout≡3.3V 500 mA Note: 1.Diode:schottky type, such as:1N5817,1N5819,1N5822 2.Inductor:22uH(R<0.5 Ω) 3.Capacitor:100uF (Tantalum type) 4.Compensation capacitor:22uF (Tantalum type) 5.IDD2 is quiescent current drawn from power source, It is the minimum current of the chip without any dynamic current 6.Ino load is the current with no load in constant current application, it’s also the current consumed by the converter itself, including the chip and external circuits, when Vin=2.5V,Vout=VOM |
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