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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MAX17843 датащи(PDF) 17 Page - Maxim Integrated Products |
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MAX17843 датащи(HTML) 17 Page - Maxim Integrated Products |
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17 / 131 page  (VDCIN = +48V, TA = TMIN to TMAX, unless otherwise noted, where TMIN = -40°C and TMAX =+125°C. Typical values are at TA = +25°C. Operation is with the recommended application circuit.) (Note 5) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Level-Shifting Amplifier Offset (Note 10) VOS_LSAMP DIAGSEL[2:0] = 011b, OVSAMPL[2:0] = 011b -200 +200 mV VAA Diagnostic ADC1 Measurement Accuracy VDIAG_ VAAERR1 DIAGSEL[2:0] = 010b, OVSAMPL[2:0] = 011b, ADCSELECT = 0 -20 +20 mV VAA Diagnostic ADC2 Measurement Accuracy VDIAG_ VAAERR2 DIAGSEL[2:0] = 010b, OVSAMPL[2:0] = 011b, ADCSELECT = 1 -30 +30 mV SHDNL INPUT AND CHARGE PUMP Input Low Voltage VIL_SHDNL 0.55 V Input High Voltage VIH_SHDNL 1.8 V Regulated Voltage VSHDNLIMIT VDCIN ≥ 12V 8 9.5 12 V VDCIN = 9V 6.7 V Pulldown Resistance RFORCEPOR FORCEPOR = 1 2.5 4.7 8 kΩ SHDNL Input Leakage Resistance RSHDNL 4.5 20.5 MΩ Charge-Pump Current (Note 11) ISHDNL VSHDNL < VSHDNLIMIT, baud rate = 2Mbps 15 117 350 µA GENERAL-PURPOSE I/O (GPIO0–GPIO3) Input Low Voltage VIL_GPIO 0.8 V Input High Voltage VIH_GPIO 2.4 V Pulldown Resistance RGPIO GPIO[15:12] = 0h (input) 0.5 2 7.5 MΩ Output Low Voltage VOL_GPIO ISINK = 3mA 0.4 V Output High Voltage VOH_GPIO ISOURCE = 3mA VDDL1 - 0.4 V REGULATOR Output Voltage VAA 0 ≤ IVAA < 10mA 3.2 3.3 3.4 V Short-Circuit Current IAASC VAA shorted to AGND 10 20 70 mA POR Threshold VPORFALL VAA falling 2.85 2.95 3.02 V VPORRISE VAA rising 3.0 3.1 V POR Hysteresis VPORHYS 40 mV Thermal-Shutdown Temperature (Note 9) TSHDN Temperature rising 165 °C Thermal-Shutdown Hysteresis (Note 9) THYS 10 °C HV CHARGE PUMP Output Voltage (VHV-VDCIN) VHV-DCIN 9V ≤ VDCIN ≤ 12V, ILOAD = 1.5mA 5 5.5 6 V 12V ≤ VDCIN ≤ 65V, ILOAD = 3mA 5 5.5 6 Charge Pump Efficiency (Note 12) 38 % MAX17843 12-Channel, High-Voltage Smart Sensor Data-Acquisition Interface www.maximintegrated.com Maxim Integrated │ 17 Electrical Characteristics (continued) |
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