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LTC2909 Datasheet(PDF) 4 Page - Linear Technology |
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LTC2909 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 16 page  LTC2909 4 2909fb ADJ Threshold Voltage vs Temperature VCC UVLO Threshold Variation vs Temperature REF Output Voltage vs Temperature REF Output Load Regulation Quiescent Supply Current vs Temperature Allowable Glitch Duration vs Magnitude External Timeout Period vs Capacitance Reset Timeout Period vs Temperature TYPICAL PERFOR A CE CHARACTERISTICS TA = 25°C unless otherwise noted TEMPERATURE ( °C) –50 506 25 2909 G01 500 496 –25 0 50 494 492 508 504 502 498 75 100 125 TEMPERATURE ( °C) –50 0.5 1.0 1.5 25 75 2909 G02 0 –0.5 –25 0 50 100 125 –1.0 –1.5 TEMPERATURE ( °C) –50 1.005 1.010 0.015 25 75 2909 G03 1.000 0.995 –25 0 50 100 125 0.990 0.985 IREF = 0A LOAD CURRENT, IREF (mA) –1 0.985 0.990 0.995 1.000 1.005 1.010 1.015 VCC = 2.5V –0.5 0 0.5 1 2909 G04 TA = 125°C TA = 25°C TA = –40°C REF Output Line Regulation SUPPLY VOLTAGE, VCC (V) 2 0.985 0.990 0.995 1.000 1.005 34 5 6 2909 G05 1.010 1.015 2.5 3.5 4.5 5.5 TA = 125°C IREF = 0A TA = 25°C TA = –40°C GLITCH PERCENTAGE PAST THRESHOLD (%) 0.1 400 500 600 700 1 10 100 2909 G07 300 200 100 0 RESET OCCURS ABOVE CURVE TMR PIN CAPACITANCE, CTMR (nF) 10 100 1000 10000 0.1 10 100 1000 2909 G08 1 1 TEMPERATURE ( °C) –50 220 240 260 25 75 2909 G09 200 180 –25 0 50 100 125 160 140 INTERNAL EXTERNAL WITH 22nF CAPACITOR TEMPERATURE ( °C) –50 55 25 2909 G06 40 30 –25 0 50 25 20 60 50 45 35 75 100 125 ADJ1 = 0.55V ADJ2 = 0.45V SEL = OPEN VCC = 5V VCC = 3.3V VCC = 2.5V |
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