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FA13842N Datasheet(PDF) 3 Page - Fuji Electric |
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FA13842N Datasheet(HTML) 3 Page - Fuji Electric |
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3 / 15 page  FA13842, 13843, 13844, 13845 3 Current sensing section Item Symbol Test condition Min. Typ. Max. Unit Voltage gain AV IS Tj=25˚C 2.85 3 3.15 V/V Maximum input signal VTH IS FB=0V 0.9 1.0 1.1 V Input bias current IIS –1 –5 µA Delay to output TPD Tj=25˚C, ISNS to OUT 150 300 ns s Electrical characteristics (Vcc=15V, RT=10k Ω, CT=3.3nF, Ta=25˚C) Reference voltage section Item Symbol Test condition Min. Typ. Max. Unit Reference voltage VREF Tj=25˚C, IL=1mA 4.75 5.00 5.25 V Line regulation LINE Vcc=10 to 25V ±3 ±20 mV Load current regulation LOAD IL=0 to 20mA ±3 ±25 mV Temperature regulation VTC Ta=–25 to 85˚C ±0.3 mV/˚C Output current at short-circuit IOS Tj=25˚C 60 mA s Recommended operating conditions Item Symbol Min. Max. Unit Supply voltage VCC 10 25 V Oscillation timing capacitor CT 0.47 10 nF Oscillation timing resistor RT 2.0 100 k Ω Oscillation frequency fOSC 10 500 kHz Oscillator section Error amplifier section Item Symbol Test condition Min. Typ. Max. Unit Input voltage VFB COMP=2.5V, Tj=25˚C 2.4 2.5 2.6 V Input leak current IFB ±2 µA Open-loop gain AV 65 72 dB Unity gain bandwidth fT 0.7 1 MHz Output source current ISOURCE FB=2.3V, COMP=0V –0.8 –1.0 mA Output sink current ISINK FB=2.7V, COMP=1V 2 15 mA Output voltage VH COMP FB=2.3V, RL=15k Ω to GND 4.0 4.5 V VL COMP FB=2.7V, RL=15k Ω to VREF 80 500 mV Item Symbol Test condition Min. Typ. Max. Unit Oscillation frequency fOSC Tj=25˚C 49 52 55 kHz Ta=–25 to 85˚C 47 57 kHz Voltage stability fdv Vcc=10 to 25V ±0.25 ±1% Temperature stability fdt Ta=–25 to 85˚C –0.07 %/˚C Oscillation amplitude VOSC Tj=25˚C 1.6 V Discharge current IDISCHG Tj=25˚C 8.4 mA |
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