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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ADP3198 датащи(PDF) 4 Page - Analog Devices |
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ADP3198 датащи(HTML) 4 Page - Analog Devices |
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4 / 32 page  ADP3198 Rev. A | Page 4 of 32 Parameter Symbol Conditions Min Typ Max Unit ILIMIT Voltage VILIMIT RILIMIT = 121 kΩ (VILIMIT = (IILIMIT × RILIMIT)) 1.09 1.21 1.33 V Maximum Output Voltage 3 V Current-Limit Threshold Voltage VCL VCSREF − VCSCOMP, RILIMIT = 121 kΩ 80 100 125 mV Current-Limit Setting Ratio VCL/VILIMIT 82.6 mV/V DELAY TIMER Normal Mode Output Current IDELAY IDELAY = IIREF 12 15 18 μA Output Current in Current Limit IDELAY(CL) IDELAY(CL) = 0.25 × IIREF 3.0 3.75 4.5 μA Threshold Voltage VDELAY(TH) 1.6 1.7 1.8 V SOFT START Output Current ISS During startup, ISS = IIREF 12 15 18 μA ENABLE INPUT Threshold Voltage VTH(EN) 800 850 900 mV Hysteresis VHYS(EN) 80 100 125 mV Input Current IIN(EN) −1 μA Delay Time tDELAY(EN) EN > 950 mV, CDELAY = 10 nF 2 ms OD OUTPUT Output Low Voltage VOL( OD) 160 500 mV Output High Voltage VOH( OD) 4 5 V OD Pull Down Resistor 60 kΩ THERMAL THROTTLING CONTROL TTSENSE Voltage Range Internally limited 0 5 V TTSENSE Bias Current −133 −123 −113 μA TTSENSE VRFAN Threshold Voltage 1.06 1.105 1.15 V TTSENSE VRHOT Threshold Voltage 765 810 855 mV TTSENSE Hysteresis 50 mV VRFAN Output Low Voltage VOL(VRFAN) IVRFAN(SINK) = −4 mA 150 300 mV VRHOT Output Low Voltage VOL(VRHOT) IVRHOT(SINK) = −4 mA 150 300 mV POWER-GOOD COMPARATOR Undervoltage Threshold VPWRGD(UV) Relative to nominal DAC output −450 −500 −550 mV Overvoltage Threshold VPWRGD(OV) Relative to nominal DAC output 250 300 350 mV Output Low Voltage VOL(PWRGD) IPWRGD(SINK) = −4 mA 150 300 mV Power-Good Delay Time During Soft Start CDELAY = 10 nF 2 ms VID Code Changing 100 250 μs VID Code Static 200 ns Crowbar Trip Point VCROWBAR Relative to nominal DAC output 250 300 350 mV Crowbar Reset Point Relative to FBRTN 395 450 505 mV Crowbar Delay Time tCROWBAR Overvoltage to PWM going low VID Code Changing 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 VSYSTEM = 12 V, RSHUNT = 340 Ω (see Figure 2) VCC VCC 4.65 5 5.55 V DC Supply Current IVCC VSYSTEM = 13.2 V, RSHUNT = 340 Ω 25 mA UVLO Turn-On Current 6.5 11 mA UVLO Threshold Voltage VUVLO VCC rising 9 V UVLO Turn-Off Voltage VCC falling 4.1 V 1 All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC). 2 Guaranteed by design or bench characterization, not tested in production. |
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