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LT3748EMSPBF Datasheet(PDF) 5 Page - Linear Technology |
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LT3748EMSPBF Datasheet(HTML) 5 Page - Linear Technology |
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5 / 30 page  LT3748 5 3748fa TYPICAL PERFORMANCE CHARACTERISTICS Error Amplifier Transconductance vs Temperature Error Amplifier Output Current vs RREF Pin Voltage SENSE Pin Threshold vs Temperature EN/UVLO Current vs Temperature EN/UVLO Threshold vs Temperature TC Pin Voltage vs Temperature TA = 25°C, unless otherwise noted. Maximum Discontinuous Off-Time vs Temperature GATE Rise and Fall Time vs Charge GATE Rise and Fall Time vs INTVCC Voltage TEMPERATURE (°C) –50 0 0.5 1.0 1.5 2.0 050 100 150 3748 G10 2.5 3.0 –25 25 75 125 VEN/UVLO = 1.1V VEN/UVLO = 0.9V VEN/UVLO = 1.3V TEMPERATURE (°C) –50 1.20 1.30 150 3748 G11 1.10 1.00 0 50 100 –25 25 75 125 1.40 1.15 1.25 1.05 1.35 TEMPERATURE (°C) –50 0.5 0.6 0.7 150 3748 G12 0.4 0.3 0 0 50 100 –25 25 75 125 0.2 0.1 0.9 0.8 TEMPERATURE (°C) –50 100 110 130 140 150 200 170 0 50 75 3748 G13 120 180 190 160 –25 25 100 125 150 VIN = 100V VIN = 6V VREF (V) 0 0 20 40 60 2.0 3748 G14 –20 –40 –10 10 30 50 –30 –50 –60 0.5 1.0 1.5 2.5 150°C 100°C 25°C –50°C TEMPERATURE (°C) –50 80 120 150 3748 G15 40 0 0 50 100 –25 25 75 125 160 60 100 20 140 OVERCURRENT VC = 2.2V VC = 0.2V TEMPERATURE (°C) –50 20 21 23 24 25 30 27 0 50 75 3748 G16 22 28 29 26 –25 25 100 125 150 TOTAL GATE CHARGE (nC) 0 0 10 20 30 40 20 40 60 80 3748 G17 100 120 50 0 0.5 1.0 1.5 2.0 RISE TIME FALL TIME Q = C • V VINTVCC = 7V tr, tf 10% TO 90% AVERAGE CURRENT VINTVCC (V) 0 10 15 20 3748 G18 5 0 5 10 15 25 20 FALLING RISING CGATE = 3.3nF tr, tf 10% TO 90% |
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