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LTC3826EUH Datasheet(PDF) 6 Page - Linear Technology |
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LTC3826EUH Datasheet(HTML) 6 Page - Linear Technology |
6 / 36 page LTC3826 6 3826fc TYPICAL PERFORMANCE CHARACTERISTICS Total Input Supply Current vs Input Voltage EXTVCC Switchover and INTVCC Voltages vs Temperature INTVCC Line Regulation Maximum Current Sense Voltage vs ITH Voltage Sense Pins Total Input Bias Current Maximum Current Sense Threshold vs Duty Cycle Foldback Current Limit Quiescent Current vs Temperature SENSE Pins Total Input Bias Current vs ITH INPUT VOLTAGE (V) 5 350 300 250 200 150 100 50 0 20 30 3826 G10 10 15 25 35 NO LOAD 300μA LOAD TEMPERATURE (°C) –45 4.0 4.2 4.6 4.8 5.0 6.0 5.4 –5 35 55 3826 G11 4.4 5.6 5.8 5.2 –25 15 75 95 INTVCC EXTVCC RISING EXTVCC FALLING INPUT VOLTAGE (V) 0 5.0 5.5 5.2 10 20 25 3826 G12 5.3 5.4 5.1 515 30 35 40 ITH PIN VOLTAGE (V) 0 40 60 100 0.6 1.0 3826 G13 20 0 0.2 0.4 0.8 1.2 1.4 –20 –40 80 PULSE SKIPPING FORCED CONTINUOUS Burst Mode OPERATION (RISING) Burst Mode OPERATION (FALLING) 10% DUTY CYCLE VSENSE COMMON MODE VOLTAGE (V) 0 –120 –60 0 60 8 3826 G14 –180 –240 –150 –90 –30 30 –210 –270 –300 2 4 6 10 7 1 3 5 9 DUTY CYCLE (%) 0 40 80 120 20 60 100 20 40 60 80 3826 G15 100 10 030 50 70 90 FEEDBACK VOLTAGE (V) 0 0 20 60 80 100 0.2 0.4 0.5 0.9 3826 G16 40 0.1 0.3 0.6 0.7 0.8 120 TRACK/SS = 1V TEMPERATURE (°C) –45 24 26 30 32 34 44 38 –15 15 30 90 3826 G17 28 40 42 36 –30 0 45 60 75 PLLIN/MODE = 0V ITH VOLTAGE (V) 0 3 1.4 1.2 3826 G18 0 0.2 0.4 0.6 0.8 1.0 4 2 1 VSENSE = 3.3V |
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