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LTC1422 Datasheet(PDF) 3 Page - Linear Technology |
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LTC1422 Datasheet(HTML) 3 Page - Linear Technology |
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3 / 40 page  LTC4211 3 4211fb ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, unless otherwise noted. (Note 2) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS IINON ON Input Current VON = VCC or GND ±1 ±10 μA ILEAK RESET, FAULT Leakage Current VRESET = VFAULT = 15V, Pull-Down Device Off l ±0.1 ±2.5 μA IINSENSE SENSE Input Current VSENSE = VCC or GND ±1 ±10 μA VCB(FAST) SENSE Trip Voltage (VCC – VSENSE) Fast Comparator Trips l 130 150 170 mV VCB(SLOW) SENSE Trip Voltage (VCC – VSENSE) Slow Comparator Trips l 40 50 60 mV IGATEUP GATE Pull-Up Current Charge Pump On, VGATE ≤ 0.2V l –12.5 – 10 –7.5 μA IGATEDOWN Normal GATE Pull-Down Current ON Low l 130 200 270 μA Fast GATE Pull-Down Current FAULT Latched and Circuit Breaker Tripped or in UVLO 50 mA ΔVGATE External N-Channel Gate Drive VGATE – VCC (For VCC = 2.5V) VGATE – VCC (For VCC = 2.7V) VGATE – VCC (For VCC = 3.3V) VGATE – VCC (For VCC = 5V) VGATE – VCC (For VCC = 12V) VGATE – VCC (For VCC = 15V) l l l l l l 2.5 4.5 5.0 10 10 8 8 8 10 16 18 18 V V V V V V VGATEOV GATE Overvoltage Lockout Threshold l 0.08 0.2 0.3 V VFB FB Voltage Threshold FB High to Low l 1.223 1.236 1.248 V ΔVFB FB Threshold Line Regulation 2.5V ≤ VCC ≤ 16.5V l 0.5 5 mV VFBHST FB Voltage Threshold Hysteresis 3mV VONHI ON Threshold High l 1.23 1.316 1.39 V VONLO ON Threshold Low l 1.20 1.236 1.26 V VONHST ON Hysteresis 80 mV IFILTER FILTER Current During Slow Fault Condition l –2.5 –2 –1.5 μA During Normal and Reset Conditions l 710 13 μA VFILTER FILTER Threshold Latched Off Threshold, FILTER Low to High l 1.20 1.236 1.26 V VFILTERHST FILTER Threshold Hysteresis 80 mV ITMR TIMER Current Timer On, VTIMER = 1V l – 2.5 –2 –1.5 μA Timer Off, TIMER = 1.5V 3 mA VTMR TIMER Threshold TIMER Low to High l 1.20 1.236 1.26 V TIMER High to Low l 0.15 0.200 0.40 V VFAULT FAULT Threshold Latched Off Threshold, FAULT High to Low l 1.20 1.236 1.26 V VFAULTHST FAULT Threshold Hysteresis 50 mV VOLFAULT Output Low Voltage IFAULT = 1.6mA l 0.14 0.4 V VOLRESET Output Low Voltage IRESET = 1.6mA l 0.14 0.4 V tFAULTFC FAST COMP Trip to GATE Discharging VCB = 0mV to 200mV Step l 300 700 ns tFAULTSC SLOW COMP Trip to GATE Discharging VCB = 0mV to 100mV Step, 8-Pin Version or FILTER Floating l 10 20 30 μs VCB = 0mV to 100mV Step, 10nF at FILTER Pin to GND l 468 ms tEXTFAULT FAULT Low to GATE Discharging VFAULT = 5V to 0V l 135 μs tFILTER FILTER High to FAULT Latched VFILTER = 0V to 5V l 2 4.5 7 μs |
Similar Part No. - LTC1422 |
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Similar Description - LTC1422 |
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