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ADP3181JRUZ-REEL Datasheet(PDF) 3 Page - Analog Devices |
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ADP3181JRUZ-REEL Datasheet(HTML) 3 Page - Analog Devices |
3 / 24 page ADP3181 Rev. A | Page 3 of 24 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. See Figure 3. −14.5 +14.5 mV Line Regulation ΔV 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) CPUID > 4.5 V. 0.8 V CPUID < 4.0 V. 0.4 V Input High Voltage VIH(VID) CPUID > 4.5 V. 2.0 V CPUID < 4.0 V. 0.8 V Input Current IVID VID(X) = 0 V, CPUID > 4.5 V. 40 70 μA VID(X) = 0 V, CPUID < 4.0 V. 20 35 μA Pull-up Resistance RVID 40 60 k Ω Internal Pull-Up Voltage CPUID > 4.5 V. 2.25 2.5 2.75 V CPUID < 4.0 V. 1.1 1.25 1.4 V VID Transition Delay Time2 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 CPUID INPUT Input Low Voltage VIL(CPUID) 0.4 V Input High Voltage VIH(CPUID) 0.8 4.0 V VR 9 Detection Threshold Voltage 4.0 4.5 V Input Current ICPUID CPUID = 0 V. 20 3.5 μA Pull-Up Resistance RCPUID 4.0 60 k Ω OSCILLATOR Frequency Range2 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. See Figure 2. −3 +3 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 ΔV FB See Figure 4. −77 −80 −83 mV Output Voltage Range 0.05 2.7 V Output Current ICSCOMP 500 μA |
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