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ADM1278-1AACPZ Datasheet(PDF) 4 Page - Analog Devices |
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ADM1278-1AACPZ Datasheet(HTML) 4 Page - Analog Devices |
4 / 61 page ADM1278 Data Sheet SPECIFICATIONS VCC = 4.5 V to 20 V, VCC ≥ VHS+ and VMO+, VHS+ = 2 V to 20 V, VSENSE_HS = (VHS+ − VHS−) = 0 V, TA = −40°C to +85°C, unless otherwise noted. Table 2. Parameter1 Symbol Min Typ Max Unit Test Conditions/Comments POWER SUPPLY Operating Voltage Range VCC 4.5 20 V Undervoltage Lockout UVLO 2.4 2.7 V VCC rising Undervoltage Hysteresis 90 120 mV Quiescent Current ICC 5.5 mA GATE on and power monitor running UV PIN Input Current IUV 50 nA UV ≤ 3.6 V UV Threshold UVTH A Grade and AA Grade 0.99 1.0 1.01 V UV falling B Grade Only 0.97 1.0 1.03 V UV falling UV Threshold Hysteresis UVHYST 45 60 75 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 Input Current IOV 50 nA OV ≤ 3.6 V OV Threshold OVTH A Grade and AA Grade 0.99 1.0 1.01 V OV rising B Grade Only 0.97 1.0 1.03 V OV rising OV Threshold Hysteresis OVHYST 45 60 75 mV OV Glitch Filter OVGF 1.5 3.5 μs 50 mV overdrive OV Propagation Delay OVPD 3.0 4.0 μs OV high to GATE pull-down active HS+ AND HS− PINS Input Current ISENSEx 150 μA Per individual pin; VHS+, VHS− = 20 V Input Imbalance IΔSENSE 5 μA IΔSENSE = (I+ − I−) MO+ AND MO− PINS Input Current IMO± 25 nA Per individual pin; VMO+, VMO− = 20 V VCAP PIN Internally Regulated Voltage VVCAP A Grade and AA Grade 2.68 2.7 2.72 V 0 µA ≤ IVCAP ≤ 100 µA; CVCAP = 1 μF B Grade Only 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 Recommended Maximum Operating Range VISET 0.25 1.25 V 5 mV to 25 mV VSENSE current limit 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 − VOUT 10 12 14 V 20 V ≥ VCC ≥ 8 V; IGATE ≤ 5 μA 8 10 V VHS+ = VCC = 5 V; IGATE ≤ 5 μA 7 9 V VHS+ = VCC = 4.5 V; IGATE ≤ 1 μA GATE Pull-Up Current IGATEUP −20 −30 μA VGATE = 0 V GATE Pull-Down Current IGATEDN Regulation IGATEDN_REG 45 60 75 μA VGATE ≥ 2 V; VISET = 1.0 V; (VHS+ − VHS−) = 30 mV Slow IGATEDN_SLOW 5 10 15 mA VGATE ≥ 2 V Fast IGATEDN_FAST 750 1500 2250 mA VGATE ≥ 12 V; VCC ≥ 12 V GATE Holdoff Resistance 20 Ω VCC = 0 V, VGATE = 2 V Rev. A | Page 4 of 61 |
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