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ADM1275-2ARQZ データシート(PDF) 5 Page - Analog Devices |
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ADM1275-2ARQZ データシート(HTML) 5 Page - Analog Devices |
5 / 48 page Data Sheet ADM1275 Rev. D | Page 5 of 48 Parameter Min Typ Max Unit Test Conditions/Comments Circuit Breaker Offset, VCBOS 0.6 0.88 1.12 mV Circuit breaker trip voltage, VCB = VSENSECL − VCBOS SEVERE OVERCURRENT Voltage Threshold, VSENSEOC 40 50 mV VISET = 1.0 V; VFLB > 1.1 V; VSS ≥ 2 V 9.5 13.0 mV VISET = 0.25 V; VFLB > 1.1 V; VSS ≥ 2 V Short Glitch Filter Duration 90 200 ns VISET > 1.65 V; VSENSE driven from 18 mV to 52 mV; selectable via PMBus Long Glitch Filter Duration (Default) 530 900 ns VSENSE driven from 18 mV to 52 mV Response Time With Short Glitch Filter 180 370 ns 2 mV overdrive maximum severe overcurrent threshold With Long Glitch Filter 645 1020 ns SOFT START (SS PIN) SS Pull-Up Current, ISS −12 −10 −8 µA VSS = 0 V Default VSENSECL Limit 0.5 1.25 1.8 mV When VSENSE reaches this level, ISS is enabled, ramping VSENSECL; VSS = 0 V SS Pull-Down Current 100 µA VSS = 1 V TIMER PIN Timer Pull-Up Current (POR), ITIMERUPPOR −2 −3 −4 µA Initial power-on reset; VTIMER = 0.5 V Timer Pull-Up Current (OC Fault), ITIMERUPFLT −57 −60 −63 µA Overcurrent fault; 0.2 V ≤ VTIMER ≤ 1 V Timer Pull-Down Current (Retry), ITIMERDNRT 1.7 2 2.3 µA After fault when GATE is off; VTIMER = 0.5 V Timer Retry/OC Fault Current Ratio 3.33 3.8 % Defines the limits of the autoretry duty cycle Timer Pull-Down Current (Hold), ITIMERDNHOLD 100 µA Holds TIMER at 0 V when inactive; VTIMER = 0.5 V Timer High Threshold, VTIMERH 0.98 1.0 1.02 V Timer Low Threshold, VTIMERL 0.18 0.2 0.22 V FOLDBACK (FLB PIN) FLB and PWRGD Threshold, VFLBTH 1.08 1.1 1.12 V FLB rising; VISET = 1.0 V Input Current, IFLB 100 nA VFLB ≤ 1.0 V; VISET = 1.25 V 100 nA VVCAP ≤ VFLB ≤ 20 V Hysteresis Current 1.7 2.3 μA Internal Hysteresis Voltage 1.9 3.1 mV Voltage drop across the internal 1.3 kΩ resistor Power-Good Glitch Filter, PWRGDGF 0.3 0.7 1 μs 50 mV overdrive Minimum Foldback Clamp 200 mV Accuracies included in total sense voltage accuracies VOUT PIN ADM1275-1 and ADM1275-3 Input Current 20 μA VOUT = 20 V LATCH PIN ADM1275-1 and ADM1275-3 Output Low Voltage, VOL_LATCH 0.4 V ILATCH = 1 mA 1.5 V ILATCH = 5 mA Leakage Current 100 nA VLATCH ≤ 2 V; LATCH output high-Z 1 µA VLATCH = 20 V; LATCH output high-Z GPO1/ALERT1/CONV PIN (ADM1275-1 and ADM1275-2), ENABLE PIN (ADM1275-3) No internal pull-up present on these pins Output Low Voltage, VOL_GPO1 0.4 V IGPO1 = 1 mA 1.5 V IGPO1 = 5 mA Leakage Current 100 nA VGPO1 ≤ 2 V; GPO output high-Z 1 µA VGPO1 = 20 V; GPO output high-Z Input High Voltage, VIH 1.1 V Input Low Voltage, VIL 0.8 V GPO2/ALERT2 PIN ADM1275-1 and ADM1275-3 Output Low Voltage, VOL_GPO2 0.4 V IGPO2 = 1 mA 1.5 V IGPO2 = 5 mA Leakage Current 100 nA VGPO2 ≤ 2 V; GPO output high-Z 1 µA VGPO2 = 20 V; GPO output high-Z |
同様の部品番号 - ADM1275-2ARQZ |
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同様の説明 - ADM1275-2ARQZ |
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