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ADP3188JRUZ-REEL Datasheet(PDF) 3 Page - Analog Devices |
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ADP3188JRUZ-REEL Datasheet(HTML) 3 Page - Analog Devices |
3 / 28 page ADP3188 Rev. A | Page 3 of 28 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 ERROR AMPLIFIER Output Voltage Range2 VCOMP 0.7 3.1 V Accuracy VFB Relative to nominal DAC output, referenced to FBRTN, CSSUM = CSCOMP, Figure 2 −9.5 +9.5 mV Line Regulation ∆V FB VCC = 10 V to 14 V 0.05 % Input Bias Current IFB 14 15.5 17 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 VID INPUTS Input Low Voltage VIL(VID) 0.4 V Input High Voltage VIH(VID) 0.8 V Input Current, Input Voltage Low IIL(VID) VID(X) = 0 V −25 −35 µA Input Current, Input Voltage High IIH(VID) VID(X) = 1.25 V 5 15 µA Pull-Up Resistance RVID 35 60 85 k Ω Internal Pull-Up Voltage 0.9 1.1 V VID Transition Delay Time 2 VID code change to FB change 400 ns No CPU Detection Turn-Off Delay Time2 VID code change to 11111 to PWM going low 400 ns OSCILLATOR Frequency Range 2 fOSC 0.25 4 MHz Frequency Variation fPHASE TA = 25°C, RT = 250 k Ω, 4-phase 155 200 245 kHz TA = 25°C, RT = 115 k Ω, 4-phase 400 kHz TA = 25°C, RT = 75 k Ω, 4-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 CURRENT-SENSE AMPLIFIER Offset Voltage VOS(CSA) CSSUM – CSREF, Figure 3 −1.75 +1.75 mV TA = 25°C to 85°C, CSSUM – CSREF, Figure 3 −1.5 +1.5 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 2.7 V Positioning Accuracy ∆V FB Figure 4 −77 −80 −83 mV Output Voltage Range 0.05 2.7 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 −5 +5 % |
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