データシートサーチシステム |
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FAN5078 データシート(PDF) 7 Page - Fairchild Semiconductor |
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FAN5078 データシート(HTML) 7 Page - Fairchild Semiconductor |
7 / 16 page © 2006 Fairchild Semiconductor Corporation 7 www.fairchildsemi.com FAN5078 Rev. 1.0.0 • 05/11/06 Electrical Specifications Recommended operating conditions; component values per Figure 1, unless otherwise noted. Parameter Conditions Min. Typ. Max. Units Power Supplies VCC Current: S0 LDRV, HDRV Open, FB forced above regulation point, I(VTT) = 0, EN=1, S3#I=1 15 24 mA S3 EN=1, S3#I = LOW, I(3.3) < 10mA 15 24 mA S5 EN=0, I(3.3) = 0 2 4 mA Rising VCC 4.0 4.2 4.4 V Falling 3.9 4,1 4.3 V VCC UVLO Threshold Hysteresis 0.15 V Rising 4.3 4.4 4.6 V Falling 3.9 4.1 4.2 V 5V MAIN UVLO Threshold Hysteresis 0.30 V 5V MAIN Input Resistance to GND 35 62 KΩ Oscillator Frequency 255 300 345 KHz Ramp Amplitude, pk–pk (1) 1.8 V Ramp Offset 0.5 V Reference and Soft Start Internal Reference Voltage 0.891 0.900 0.909 V ILIM Reference Voltage -2 μA > IILIM > -18μA 0.882 0.900 0.918 V Initial ramp after power-up 4.2 Average Soft Start Current (ISS) During PWM / LDO soft start 45 µA SS Discharge Resistance EN = 0 150 Ω SS Complete Threshold 1.5 V SS Complete Hysteresis 50 mV PWM Converter Load Regulation IOUT from 0 to 15A -2 +2 % FB Bias Current -1.8 -1.3 -0.8 µA Under-Voltage Shutdown as % of set point, 2 μS noise filter 65 75 80 % Over-Voltage Threshold as % of set point 110 115 120 % ISNS Over-Current Threshold RILIM= 56KΩ -195 -170 -145 µA VDDQ IN Discharge Resistance EN = 0 20 55 Ω COMP Source Current VCOMP = 2.5V 650 µA COMP Sink Current VCOMP = 2.5V 100 µA Error Amp GBW Product (1) 5.5 MHz Error Amp DC Gain (1) 82 dB |
同様の部品番号 - FAN5078 |
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同様の説明 - FAN5078 |
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