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UC3655G-XX-AF5-R 데이터시트(PDF) 4 Page - Unisonic Technologies |
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UC3655G-XX-AF5-R 데이터시트(HTML) 4 Page - Unisonic Technologies |
4 / 9 page UC3655 Preliminary CMOS IC UNISONICTECHNOLOGIESCO.,LTD 4 of 9 www.unisonic.com.tw QW-R502-280.b ABSOLUTE MAXIMUM RATING (Ta=25°C) PARAMETER SYMBOL RATINGS UNIT VIN Pin Voltage VIN - 0.3 ~ 6.5 V LX VLx - 0.3 ~ VIN + 0.3 VOUT VOUT -0.3 ~ 6.5 Input/Output Pins CE/MODE VCE - 0.3 ~ VIN + 0.3 V Lx Pin Current ILx ±1000 mA Power Dissipation PD 250 mW Operating Temperature TOPR - 40 ~ 85 °C Storage Temperature Range TSTG - 55 ~ 125 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ELECTRICAL CHARACTERISTICS (fOSC=1.2MHz, Ta=25°C) UC3655-12 (VIN=3.6V, VOUT=1.2V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Operating Voltage Range VIN 2.0 6.0 V Output Voltage VOUT CE=VIN, IOUT=30mA 1.176 1.200 1.224 V U.V.L.O. Voltage VUVLO CE=VIN, VOUT=0V, LX=L 1.0 1.40 1.78 V Output Voltage Temperature Characteristics ΔVOUT VOUT*ΔTOPR IOUT=30mA, -40°C ≤TOPR≤85°C ±100 ppm/°C Maximum Output Current IOUT(MAX) VIN=4.5V 500 mA Supply Current IDD VIN=CE=5.0V, VOUT=VOUT*1.1 70 115 µA Stand-by Current ISTN-BY VIN=5.0V, CE=0V, VOUT=VOUT*1.1 0 1.0 µA PFM Switch Current IPFM CE=VIN, IOUT=1mA 100 140 180 mA Current Limit ILIM VIN=CE=5.0V, VOUT=0V 600 700 mA Efficiency (Note 1) η CE=VIN=4.5V, IOUT=100mA 90 % OSCILLATOR Oscillation Frequency fOSC IOUT=100mA 1020 1200 1380 kHz Maximum Duty Ratio DMAX CE=VIN, VOUT=0V 100 % Minimum Duty Ratio DMIN CE=VOUT=VIN 0 % Soft-Start Time TSS IOUT=1mA 0.5 1.0 3.0 ms Latch Time Tlat VIN=CE=5.0V (Note 3) 1 20 ms CE (PIN 3) CE "H" Voltage VCEH 0.9 VIN V CE "L" Voltage VCEL VSS 0.3 V CE "H" Current ICEH VIN=CE=5.5V, VOUT=0V -0.1 0.1 µA CE "L" Current ICEL VIN=5.5V, CE=0V, VOUT=0V -0.1 0.1 µA LX (PIN 5) LX SW "H" ON Resistance RLXH CE=0.5VIN, VOUT=0V, ILX=100mA 0.6 Ω LX SW "L" ON Resistance RLXL CE=0.5VIN, ILX=100mA 0.7 Ω LX SW "H" Leak Current ILEAKH VIN=VOUT=5.0V, CE=0V, LX=0V (Note 2) 0.01 1.0 µA LX SW "L" Leak Current ILEAKL VIN=VOUT=5.0V, CE=0V, LX=5.0V 0.01 1.0 µA UC3655-28 (VIN=3.6V, VOUT=2.8V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Operating Voltage Range VIN 2.0 6.0 V Output Voltage VOUT CE=VIN, IOUT=30mA 2.744 2.8 2.856 V U.V.L.O. Voltage VUVLO CE=VIN, VOUT=0V, LX=L 1.0 1.40 1.78 V Output Voltage Temperature Characteristics ΔVOUT VOUT*ΔTOPR IOUT=30mA, -40°C ≤TOPR≤85°C ±100 ppm/°C Maximum Output Current IOUT(MAX) VIN=4.5V 500 mA Supply Current IDD VIN=CE=5.0V, VOUT=VOUT*1.1 75 120 µA |
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