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ADP3190 Datasheet(PDF) 4 Page - Analog Devices |
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ADP3190 Datasheet(HTML) 4 Page - Analog Devices |
4 / 28 page ADP3190 Rev. 0 | Page 4 of 28 Parameter Symbol Conditions Min Typ Max Units CURRENT LIMIT COMPARATOR Output Voltage Normal Mode VILIMIT(NM) EN > 0.8 V, RILIMIT = 250 kΩ 2.8 3 3.3 V In Shutdown VILIMIT(SD) EN < 0.4 V, IILIMIT = –100 μA 400 mV Output Current, Normal Mode IILIMIT(NM) EN > 0.8 V, RILIMIT = 250 kΩ 12 μA Maximum Output Current2 60 μA Current Limit Threshold Voltage VCL VCSREF – VCSCOMP, RILIMIT = 250 kΩ 105 125 145 mV Current Limit Setting Ratio VCL/IILIMIT 10.4 mV/μA DELAY Normal Mode Voltage VDELAY(NM) RDELAY = 250 kΩ 2.8 3 3.3 V DELAY Overcurrent Threshold VDELAY(OC) RDELAY = 250 kΩ 1.6 1.9 2.2 V Latch-Off Delay Time tDELAY RDELAY = 250 kΩ, CDELAY = 12 nF 1.5 ms SOFT START Output Current, Soft Start Mode IDELAY(SS) During startup, DELAY < 2.8 V 15 20 25 μA Soft Start Delay Time tDELAY(SS) RDELAY = 250 kΩ, CDELAY = 12 nF, VID code = 011111 1 ms ENABLE INPUT Input Low Voltage VIL(EN) 0.4 V Input High Voltage VIH(EN) 0.8 V Input Current IIL(EN) –1 +1 μA POWER GOOD COMPARATOR Undervoltage Threshold VPWRGD(UV) Relative to nominal DAC output –180 –250 –300 mV Overvoltage Threshold VPWRGD(OV) Relative to nominal DAC output 90 150 200 mV Output Low Voltage VOL(PWRGD) IPWRGD(SINK) = 4 mA 225 400 mV Power Good Delay Time During Soft Start RDELAY = 250 kΩ, CDELAY = 12 nF, VID code = 011111 1 ms VID Code Changing 100 250 μs VID Code Static 200 ns Crowbar Trip Point VCROWBAR Relative to nominal DAC output 90 150 200 mV Crowbar Reset Point Relative to FBRTN 450 550 650 mV Crowbar Delay Time tCROWBAR Overvoltage to PWM going low VID Code Changing Blanking time 100 250 μs VID Code Static 400 ns PWM OUTPUTS Output Low Voltage VOL(PWM) IPWM(SINK) = –400 μA 160 500 mV Output High Voltage VOH(PWM) IPWM(SOURCE) = +400 μA 4.0 5 V SUPPLY—ADP3190 VSYSTEM = 12 V, RSHUNT = 240 Ω, see Figure 4 VCC VCC 5 V DC Supply Current 20 30 mA UVLO Threshold Voltage VUVLO VCC rising 6.3 7 8.0 V UVLO Hysteresis 0.9 V SUPPLY—ADP3190A VSYSTEM = 5V, RSHUNT = 10 Ω, see Figure 4 VCC VCC 5 V DC Supply Current 7 12 mA UVLO Threshold Voltage VUVLO VCC rising 3.7 4.0 4.3 V UVLO Hysteresis 0.9 V 1 All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC). 2 Guaranteed by design, not production tested. Specifications subject to change without notice. 3 Relative current matching from each phase to the average of all four phases. |
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