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LTC3827IG-1 Datasheet(PDF) 6 Page - Linear Technology |
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LTC3827IG-1 Datasheet(HTML) 6 Page - Linear Technology |
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6 / 32 page  LTC3827-1 6 38271fe TYPICAL PERFORMANCE CHARACTERISTICS TRACK/SS Pull-Up Current vs Temperature Shutdown (RUN) Threshold vs Temperature Regulated Feedback Voltage vs Temperature TEMPERATURE (°C) –45 1.00 1.05 1.10 75 38271 G19 0.95 0.90 0.80 –15 15 45 –30 90 0 30 60 0.85 1.20 1.15 TEMPERATURE (°C) –45 0.80 0.85 0.90 75 38271 G20 0.75 0.65 0.50 –15 15 45 –30 90 0 30 60 0.55 0.70 0.60 1.00 0.95 TEMPERATURE (°C) –45 800 802 804 75 38271 G21 798 796 792 –15 15 45 –30 90 0 30 60 794 808 806 Foldback Current Limit Quiescent Current vs Temperature SENSE Pins Total Input Bias Current vs ITH FEEDBACK VOLTAGE (V) 0 0 20 60 80 100 0.2 0.4 0.5 0.9 38271 G16 40 0.1 0.3 0.6 0.7 0.8 120 TRACK/SS = 1V TEMPERATURE (°C) –45 80 85 90 75 38271 G17 75 70 60 –15 15 45 –30 90 0 30 60 65 100 95 PLLIN/MODE = 0V ITH VOLTAGE (V) 0 2 4 6 8 12 38271 G18 0 0.2 0.4 0.6 0.8 1 1.2 1.4 10 VSENSE = 3.3V Maximum Current Sense Voltage vs ITH Voltage Sense Pins Total Input Bias Current Maximum Current Sense Threshold vs Duty Cycle ITH PIN VOLTAGE (V) 0 40 60 100 0.6 1.0 38271 G13 20 0 0.2 0.4 0.8 1.2 1.4 –20 –40 80 PULSE SKIPPING FORCED CONTINUOUS BURST MODE (RISING) BURST MODE (FALLING) 10% Duty Cycle VSENSE COMMON MODE VOLTAGE (V) 0 –700 –600 –400 –300 –200 6789 200 38271 G14 –500 12345 10 –100 0 100 DUTY CYCLE (%) 0 40 80 120 20 60 100 20 40 60 80 38271 G15 100 10 030 50 70 90 |
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