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ACE705142BM+ Datasheet(PDF) 4 Page - ACE Technology Co., LTD. |
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ACE705142BM+ Datasheet(HTML) 4 Page - ACE Technology Co., LTD. |
4 / 14 page ACE705 Technology High efficiency, multi-funtion step-up DC/DC Controller VER 1.2 4 Input Current * (no load) Lin Iout=0mA, Vin=Vout*0.6 20 25 uA Quiescent current * IDD No external component, Vout=Voutx1.05 6 8 uA Chip leakage current Istandby VCE=0V 1 uA CE “H: threshold voltage VCEH VCE:0 2V 0.6 0.9 V CE “L” threshold voltage VCEL VCE:2 0V 0.3 0.6 V Oscillator frequency FOSC Vout=Vout*0.96 Test EXT pin frequency 300 350 400 Khz CE ”H” ICEH Vout=VCE=6V -0.5 0 0.5 uA CE “L” ICEL Vout=VCE=6V -0.5 0 0.5 uA 3.0V<=Vout<=3.9V -21 4.0V<=Vout<=4.9V -35 EXT “H” output current IEXTH 5.0V<=Vout<=6.9V -41 mA 3.0V<=Vout<=3.9V 23 4.0V<=Vout<=4.9V 25 EXT “H” output current IEXTL 5.0V<=Vout<=6.9V 31 mA Oscillator duty cycle Duty On(Vlx “L”) side 70 75 80 % Efficiency η 90 % Note : 1. Diode: Schottky type, such as: 1N5817, 1N5819, 1N5822 2. Inductor: 27uH(R<0.5Ω) 3. Output Capacitor: 100uF (Tantalum type) 4. Vout pin filter capacitor: 1nF (Ceramic type) 5. Input capacitor: 47uF Typical Application (1) Application with external NMOSFET Vin D 1N5817 Vout L 27uH EXT OUT Cin ACE705 47uF Cout Rload CE GND Cp 100uF Tan OFF ON 1nF Fig2 |
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