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EVAL-ADM1275EBZ Datasheet(PDF) 4 Page - Analog Devices |
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EVAL-ADM1275EBZ Datasheet(HTML) 4 Page - Analog Devices |
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4 / 48 page  ADM1275 Data Sheet Rev. D | Page 4 of 48 SPECIFICATIONS VCC = 2.95 V to 20 V, VCC ≥ VSENSE+, VSENSE+ = 2 V to 20 V, VSENSE = (VSENSE+ − VSENSE−) = 0 V, TA = −40°C to +85°C, unless otherwise noted. Table 1. Parameter Min Typ Max Unit Test Conditions/Comments POWER SUPPLY Operating Voltage Range, VCC 2.95 20 V Undervoltage Lockout 2.4 2.7 V VCC rising Undervoltage Hysteresis 90 120 mV Quiescent Current, ICC 5 mA GATE on and power monitor running UV PIN Input Current, IUV 100 nA UV ≤ 3.6 V UV Threshold, UVTH 0.97 1.0 1.03 V UV falling UV Threshold Hysteresis, UVHYST 40 50 60 mV UV Glitch Filter, UVGF 2 7 μs 50 mV overdrive UV Propagation Delay, UVPD 5 8 μs UV low to GATE pull-down active OV PIN ADM1275-1 and ADM1275-3 Input Current, IOV 100 nA OV ≤ 3.6 V OV Threshold, OVTH 0.97 1.0 1.03 V OV rising OV Threshold Hysteresis, OVHYST 50 60 70 mV OV Glitch Filter, OVGF 0.5 1.5 μs 50 mV overdrive OV Propagation Delay, OVPD 1.0 2 μs OV high to GATE pull-down active SENSE+ AND SENSE− PINS Input Current, ISENSEx 150 μA Per individual pin; SENSE+, SENSE− = 20 V Input Imbalance, IΔSENSE 5 μA IΔSENSE = (ISENSE+) − (ISENSE−) VCAP PIN Internally Regulated Voltage, VVCAP 2.66 2.7 2.74 V 0 µA ≤ IVCAP ≤ 100 µA; CVCAP = 1 μF ISET PIN Reference Select Threshold, VISETRSTH 1.35 1.5 1.65 V If VISET > VISETRSTH, an internal 1 V reference (VCLREF) is used Internal Reference, VCLREF 1 V Accuracies included in total sense voltage accuracies Gain of Current Sense Amplifier, AVCSAMP 50 V/V Accuracies included in total sense voltage accuracies Input Current, IISET 100 nA VISET ≤ VVCAP GATE PIN Maximum voltage on the gate is always clamped to ≤31 V Gate Drive Voltage, ΔVGATE ΔVGATE = VGATE − VSENSE+ 10 12 14 V 15 V ≥ VCC ≥ 8 V; IGATE ≤ 5 μA 4.5 13 V 20 V ≥ VCC ≥ 15 V; IGATE ≤ 5 μA 8 10 V VSENSE+ = VCC = 5 V; IGATE ≤ 5 μA 4.5 6 V VSENSE+ = VCC = 2.95 V; IGATE ≤ 1 μA Gate Pull-Up Current, IGATEUP −20 −30 μA VGATE = 0 V Gate Pull-Down Current, IGATEDN_REG 45 60 75 μA VGATE ≥ 2 V; VISET = 1.0 V; (SENSE+) − (SENSE−) = 30 mV Gate Pull-Down Current, IGATEDN_SLOW 5 10 15 mA VGATE ≥ 2 V Gate Pull-Down Current, IGATEDN_FAST 750 1500 2000 mA VGATE ≥ 12 V; VCC ≥ 12 V Gate Holdoff Resistance 20 Ω VCC = 0 V HOT-SWAP SENSE VOLTAGE Hot-Swap Sense Voltage Current Limit, VSENSECL 19.6 20 20.4 mV VISET > 1.65 V; VFLB > 1.12 V; VGATE = (SENSE+) + 3 V; IGATE = 0 μA; VSS ≥ 2 V Foldback Inactive VGATE = (SENSE+) + 3 V; IGATE = 0 μA; VSS ≥ 2 V 24.6 25 25.4 mV VISET = 1.25 V; VFLB > 1.395 V 19.6 20 20.4 mV VISET = 1.0 V; VFLB > 1.12 V 9.6 10 10.4 mV VISET = 0.5 V; VFLB > 0.57 V 4.6 5 5.4 mV VISET = 0.25 V; VFLB > 0.295 V Foldback Active 3.5 4 4.5 mV VFLB = 0 V; VGATE = (SENSE+) + 3 V; IGATE = 0 μA; VSS ≥ 1 V 9.6 10 10.4 mV VISET > 1.0 V; VFLB = 0.5 V; VGATE = (SENSE+) + 3 V; IGATE = 0 μA; VSS ≥ 1 V |
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