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ADP3197 データシート(PDF) 4 Page - Analog Devices |
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ADP3197 データシート(HTML) 4 Page - Analog Devices |
4 / 32 page ADP3197 Rev. 0 | Page 4 of 32 Parameter Symbol Conditions Min Typ Max Unit Maximum Output Voltage 3 V Current Limit Threshold Voltage VCL VCSREF − VCSCOMP, RILIMIT = 121 kΩ 80 100 125 mV Current Limit Setting Ratio VCL/IILIMIT 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 (Startup) ISS(STARTUP) During startup, ISS(STARTUP) = 0.25 × IIREF 3 3.75 4.5 μA Output Current (DAC Code Change) ISS(DAC) DAC code change, ISS(DAC) = 1.25 × IIREF 15 18.75 22.5 μA ENABLE INPUT Threshold Voltage VTH(EN) 750 800 850 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 Pulldown Resistor 60 kΩ THERMAL THROTTLING CONTROL TTSENSE Voltage Range Internally limited 0 5 V TTSENSE Bias Current −135 −123 −111 μA TTSENSE VRHOT Threshold Voltage 665 710 755 mV TTSENSE Hysteresis 50 mV VRHOT Output Low Voltage VOL(VRHOT) IVRHOT(SINK) = −4 mA 150 300 mV POWER-GOOD COMPARATOR Overvoltage Threshold VPWRGD(OV) Relative to nominal DAC output; DAC = 0.5 V to 1.55 V 200 250 300 mV Relative to nominal DAC output; DAC = 0.375 V to 0.4785 V 190 250 310 mV Undervoltage Threshold VPWRGD(UV) Relative to nominal DAC output; DAC = 0.5 V to 1.55 V −300 −250 −200 mV Relative to nominal DAC output; DAC = 0.375 V to 0.4785 V −310 −250 −190 mV Output Low Voltage VOL(PWRGD) IPWRGD(SINK) = −4 mA 150 300 mV Power-Good Delay Time During Soft Start2 CDELAY = 10 nF 2 ms VID Code Changing 100 250 μs VID Code Static 200 ns Crowbar Trip Point VCROWBAR Relative to FBRTN 1.75 1.8 1.85 V Crowbar Reset Point Relative to FBRTN 300 mV 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 4) VCC VCC 4.65 5 5.55 V DC Supply Current IVCC 25 mA UVLO Turn On Current 6.5 11 mA UVLO Threshold Voltage VUVLO VCC rising 9 UVLO Threshold Voltage VUVLO 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. |
同様の部品番号 - ADP3197 |
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同様の説明 - ADP3197 |
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