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LTC2905 Datasheet(PDF) 4 Page - Linear Technology |
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LTC2905 Datasheet(HTML) 4 Page - Linear Technology |
4 / 16 page LTC2917/LTC2918 4 29178f ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VCC(MIN) Minimum Supply Voltage ⎯R⎯S⎯T in Correct Logic State ● 0.8 V VCC(UVLO) Supply Undervoltage Lockout ● 1.5 V VCC(SHUNT) Shunt Regulation Voltage IVCC = 0.5mA ● 5.7 6.2 7.0 V ICC VCC Pin Current SEL1, SEL2, TOL, ⎯M⎯R = Open SEL1, SEL2, TOL = GND (LTC2917) ⎯M⎯R = VCC (LTC2918) ● ● 30 45 50 80 μA μA Monitor Input (VM) VMT120 12V, 5% Reset Threshold 12V, 10% Reset Threshold 12V, 15% Reset Threshold ● ● ● 11.04 10.44 9.84 11.22 10.62 10.02 11.40 10.80 10.20 V V V VMT50 5V, 5% Reset Threshold 5V, 10% Reset Threshold 5V, 15% Reset Threshold ● ● ● 4.600 4.350 4.100 4.675 4.425 4.175 4.750 4.500 4.250 V V V VMT33 3.3V, 5% Reset Threshold 3.3V, 10% Reset Threshold 3.3V, 15% Reset Threshold ● ● ● 3.036 2.871 2.706 3.086 2.921 2.756 3.135 2.970 2.805 V V V VMT25 2.5V, 5% Reset Threshold 2.5V, 10% Reset Threshold 2.5V, 15% Reset Threshold ● ● ● 2.300 2.175 2.050 2.338 2.213 2.088 2.375 2.250 2.125 V V V VMT18 1.8V, 5% Reset Threshold 1.8V, 10% Reset Threshold 1.8V, 15% Reset Threshold ● ● ● 1.656 1.566 1.476 1.683 1.593 1.503 1.710 1.620 1.530 V V V VMT15 1.5V, 5% Reset Threshold 1.5V, 10% Reset Threshold 1.5V, 15% Reset Threshold ● ● ● 1.380 1.305 1.230 1.403 1.328 1.253 1.425 1.350 1.275 V V V VMT12 1.2V, 5% Reset Threshold 1.2V, 10% Reset Threshold 1.2V, 15% Reset Threshold ● ● ● 1.104 1.044 0.984 1.122 1.062 1.002 1.140 1.080 1.020 V V V VMT10 1V, 5% Reset Threshold 1V, 10% Reset Threshold 1V, 15% Reset Threshold ● ● ● 0.920 0.870 0.820 0.935 0.885 0.835 0.950 0.900 0.850 V V V VMTADJ ADJ (0.5V), 5% Reset Threshold ADJ (0.5V), 10% Reset Threshold ADJ (0.5V), 15% Reset Threshold ● ● ● 460.0 435.0 410.0 467.5 442.5 417.5 475.0 450.0 425.0 mV mV mV RVM VM Input Impedance (Note 4) Fixed Threshold Modes ● 0.5 8 MΩ IVM(ADJ) ADJ Input Current VM = 0.5V ● ±15 nA Three-State Inputs (SEL1, SEL2), (TOL, LTC2917) VTPIN, LOW Low Level Input Voltage ● 0.5 V VTPIN, HIGH High Level Input Voltage ● 1.4 V VTPIN, Z Pin Voltage when Open I = 0μA 0.9 V ITPIN, Z Allowable Leakage in Open State ● ±5 μA ITPIN, H/L Pin Input Current VTPIN = 0V, VCC ● ±20 μA Reset Timer Control (RT) IRT(UP) RT Pull Up Current VRT = 0.25V ● –2 –3 –4 μA IRT(DOWN) RT Pull Down Current VRT = 1.1V ● 234 μA IRT(INT) Internal RT VCC Detect Current VRT = VCC ● 18 μA VRT(INT, LH) RT Internal Timer Threshold VRT Rising, Referenced to VCC ● –100 –160 –300 mV The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 2.5V, unless otherwise noted. (Note 2) |
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