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ADP3182 Datasheet(PDF) 3 Page - Analog Devices |
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ADP3182 Datasheet(HTML) 3 Page - Analog Devices |
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3 / 20 page  ADP3182 Rev. 0 | Page 3 of 20 SPECIFICATIONS VCC = 12 V, FBRTN = GND, TA = 0°C to 85°C, unless otherwise noted.1 Table 1. Parameter Symbol Conditions Min Typ Max Unit OSCILLATOR Frequency Range2 fOSC 0.25 3 MHz Frequency Variation fPHASE TA = 25°C, RT = 348 k Ω, 3-phase 155 200 245 kHz TA = 25°C, RT = 174 k Ω, 3-phase 400 kHz TA = 25°C, RT = 100 k Ω, 3-phase 600 kHz Output Voltage VRT RT = 100 k Ω to GND 1.9 2.0 2.1 V RAMPADJ Output Voltage VRAMPADJ RAMPADJ − FB −50 +50 mV RAMPADJ Input Current Range IRAMPADJ 0 100 µA VOLTAGE ERROR AMPLIFIER Output Voltage Range2 VCOMP 0.7 3.1 V Accuracy VFB Referenced to FBRTN 784 800 816 mV Line Regulation ∆V FB VCC = 10 V to 14 V 0.05 % Input Bias Current IFB FB = 800 mV −4 +4 µA FBRTN Current IFBRTN 100 140 µA Output Current IO(ERR) FB forced to VOUT − 3% 500 µA Gain Bandwidth Product GBW(ERR) COMP = FB 20 MHz Slew Rate CCOMP = 10 pF 25 V/ µs CURRENT SENSE AMPLIFIER Offset Voltage VOS(CSA) CSSUM − CSREF, Figure 2 −5.5 +5.5 mV Input Bias Current IBIAS(CSSUM) −50 +50 nA Gain Bandwidth Product GBW(CSA) 10 MHz Slew Rate CCSCOMP = 10 pF 10 V/ µs Input Common-Mode Range CSSUM and CSREF 0 VCC − 2.5 V Output Voltage Range 0.05 VCC − 2.5 V Output Current ICSCOMP 500 µA CURRENT BALANCE CIRCUIT Common-Mode Range VSW(X)CM −600 +200 mV Input Resistance RSW(X) SW(X) = 0 V 20 30 40 k Ω Input Current ISW(X) SW(X) = 0 V 4 7 10 µA Input Current Matching ∆I SW(X) SW(X) = 0 V −7 +7 % CURRENT LIMIT COMPARATOR Output Voltage Normal Mode VILIMIT(NM) EN > 2 V, RILIMIT = 250 k Ω 2.9 3 3.1 V In Shutdown Mode VILIMIT(SD) EN < 0.8 V, IILIMIT = −100 µA 400 mV Output Current, Normal Mode IILIMIT(NM) EN > 2 V, RILIMIT = 250 k Ω 12 µA Maximum Output Current2 60 µA Current Limit Threshold Voltage VCL VCSREF − VCSCOMP, RILIMIT = 250 k Ω 105 125 145 mV Current Limit Setting Ratio VCL/IILIMIT 10.4 mV/ µA DELAY Normal Mode Voltage VDELAY(NM) RDELAY = 250 k Ω 2.9 3 3.1 V DELAY Overcurrent Threshold VDELAY(OC) RDELAY = 250 k Ω 1.7 1.8 1.9 V Latch-Off Delay Time tDELAY RDELAY = 250 k Ω, C DELAY = 12 nF 1.5 ms SOFT START Output Current, Soft Start Mode IDELAY(SS) During start-up, DELAY < 2.4 V 15 20 25 µA Soft Start Delay Time tDELAY(SS) RDELAY = 250 k Ω, C DELAY = 12 nF 500 µs |
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