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ADT7476AARQZ Datasheet(PDF) 4 Page - ON Semiconductor |
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ADT7476AARQZ Datasheet(HTML) 4 Page - ON Semiconductor |
4 / 67 page ADT7476A http://onsemi.com 4 ELECTRICAL CHARACTERISTICS TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted. (Note 1) Parameter Conditions Min Typ Max Unit Power Supply Supply Voltage 3.0 3.3 3.6 V Supply Current, ICC Interface inactive, ADC active 1.5 3.0 mA Temperature−to−Digital Converter Local Sensor Accuracy Resolution 0°C ≤ TA ≤ 85°C −40°C ≤ TA ≤ 125°C ±0.5 0.25 ±1.5 ±2.5 °C Remote Diode Sensor Accuracy Resolution 0°C ≤ TA ≤ 85°C −40°C ≤ TA ≤ 125°C ±0.5 0.25 ±1.5 ±2.5 °C Remote Sensor Source Current Low level High level 11 180 mA Analog−to−Digital Converter (Including MUX and Attentuators) Total Unadjusted Error (TUE) For 12 V channel For all other channels ±2 ±1.5 % Differential Non−linearity (DNL) 8 bits ±1 LSB Power Supply Sensitivity ±0.1 %/V Conversion Time Voltage Input Local Temperature Remote Temperature Averaging enabled 11 12 38 ms Total Monitoring Cycle Time Averaging enabled Averaging disabled 145 19 ms Input Resistance For VCCP channel For all other channels 70 70 200 114 kW Fan RPM−To−Digital Converter Accuracy 0°C ≤ TA ≤ 70°C −40°C ≤ TA ≤ +120°C ±6 ±10 % Full−Scale Count 65,535 Nominal Input RPM Fan count = 0xBFFF Fan count = 0x3FFF Fan count = 0x0438 Fan count = 0x021C 109 329 5000 10,000 RPM Open−Drain Digital Outputs, PWM1 TO PWM3, XTO Current Sink, IOL 8.0 mA Output Low Voltage, VOL IOUT = −8.0 mA 0.4 V High Level Output Current, IOH VOUT = VCC 0.1 20 mA Open−Drain Serial Data Bus Output (SDA) Output Low Voltage, VOL IOUT = −4.0 mA 0.4 V High Level Output Current, IOH VOUT = VCC 0.1 1.0 mA SMBus Digital Inputs (SCL, SDA) (Note 2) Input High Voltage, VIH 2.0 V Input Low Voltage, VIL 0.8 V Hysteresis 500 mV Digital Input Logic Levels (TACH Inputs) Input High Voltage, VIH Maximum input voltage 2.0 5.5 V Input Low Voltage, VIL Minimum input voltage −0.3 0.8 V Hysteresis 0.5 V p−p |
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