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FA7703 Datasheet(PDF) 7 Page - Fuji Electric |
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FA7703 Datasheet(HTML) 7 Page - Fuji Electric |
7 / 21 page AN-057E Rev.1.0 Jun-2010 7 FA7703/04 http://www.fujielectric.co.jp/fdt/scd/ Fuji Electric Systems Co., Ltd. FA7703/7704 (3)Electrical characteristics [Unless otherwise standard,Ta=25 °C,Vcc=6V,RT=22kΩ] (1) Internal Bias Section (REF terminal voltage) Item Symbol Conditions MIN. TYP. MAX. Units Output Voltage VREF REF terminal load current IREF=0mA 0.990 1.000 1.010 V Line Regulation VLINEF FA7703:Vcc=2.5 to 28V,IREF=0mA FA7704:Vcc=2.5 to 18V,IREF=0mA ±1 ±5 mV Load Regulation VLDF IREF=0 to 1mA -10 -3 mV Variation with temperature VTCF Ta=-30 to +85 °C Change rate for value at 25 °C -0.8 to +0.2 % (2) Regulated Voltage for Internal Control Blocks Section (REG terminal voltage) Item Symbol Conditions MIN. TYP. MAX. Units Output Voltage VREG REG terminal load current IREG=0mA 2.156 2.200 2.244 V Line Regulation VLINEG FA7703:Vcc=2.5 to 28V,IREG=0mA FA7704:Vcc=2.5 to 18V,IREG=0mA ±4 ±14 mV Load Regulation VLDG IREG=0 to 2mA -12 -2 mV Variation with temperature VTCG Ta=-30 to +85 °C Change rate for value at 25 °C -0.8 to +0.2 % (3) Oscillator Section Item Symbol Conditions MIN. TYP. MAX. Units Oscillation frequency fOSC RT=22k Ω 160 190 220 kHz Line Regulation f LINE FA7703:Vcc=2.5 to 28V FA7704:Vcc=2.5 to 18V ±0.1 % fTC1 Ta=+25 to -30 °C, f=50k to 1MHz ±2 % Variation With temperature fTC2 Ta=+25 to +85 °C, f=50k to1MHz ±3 % (4) Error Amplifier Section (Input:IN1-,IN2+,IN2-,Output:FB1,FB2 terminal) Item Symbol Conditions MIN. TYP. MAX. Units Reference Voltage (ch1) VB IN1- terminal threshold voltage 0.980 1.000 1.020 V Input offset (ch2) VOFST (IN2+) - (IN2-) - - ±10 mV Common mode input voltage VIN 0.3 1.4 V Input Current IIN -100 0 +100 nA Open Loop Gain AVO 70 dB Unity Gain Bandwidth fT 1.5 MHz Output Source Current IOHE FB1,2 terminal voltage=VREF-0.5V -220 -160 -100 μA Output sink Current IOLE FB1,2 terminal voltage=0.5V 3 6 12 mA (5) Pulse Width Modulation Section (FB1,FB2 terminal) Item Symbol Conditions MIN. TYP. MAX. Units Input threshold voltage VFB0 Duty Cycle=0% 0.550 0.650 0.750 V Input threshold voltage VFB100 Duty Cycle=100% 1.000 1.100 1.200 V (6) Dead Time Adjustment Circuit Section (DT1, DT2 terminal) Item Symbol Conditions MIN. TYP. MAX. Units Input threshold voltage VDT0 Duty Cycle=0% 0.550 0.650 0.750 V Input threshold voltage VDT100 Duty Cycle=100% 1.000 1.100 1.200 V |
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