ADT7473ARQZ View Datasheet(PDF) - ON Semiconductor
Part Name
Description
Manufacturer
ADT7473ARQZ Datasheet PDF : 74 Pages
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ADT7473
ELECTRICAL CHARACTERISTICS TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted. (Note 1)
Parameter
Conditions
Min
Typ
Max
Power Supply
Supply Voltage
3.0
3.3
3.6
Supply Current, ICC
Temperature−to−Digital Converter
Interface inactive, ADC active
1.5
3.0
Local Sensor Accuracy
Resolution
0°C ≤ TA ≤ 85°C
−40°C ≤ TA ≤ +125°C
±0.5
±1.5
±2.5
0.25
Remote Diode Sensor Accuracy
Resolution
0°C ≤ TA ≤ 85°C
−40°C ≤ TA ≤ +125°C
±0.5
±1.5
±2.5
0.25
Remote Sensor Source Current
First Current
6
Second Current
36
Third Current
96
Analog−to−Digital Converter (Including MUX and Attentuators)
Total Unadjusted Error (TUE)
Differential Nonlinearity (DNL)
Power Supply Sensitivity
Conversion Time (Voltage Input)
Conversion Time (Local Temperature)
8 bits
Averaging enabled
Averaging enabled
±1.5
±1.0
±0.1
11
12
Conversion Time (Remote Temperature) Averaging enabled
38
Total Monitoring Cycle Time
Averaging enabled
145
Averaging disabled
19
Input Resistance
Fan RPM−to−Digital Converter
For VCCP channel
70
120
Accuracy
Full−Scale Count
Nominal Input RPM
0°C ≤ TA ≤ 70°C
−40°C ≤ TA ≤ +120°C
Fan count = 0xBFFF
Fan count = 0x3FFF
Fan count = 0x0438
Fan count = 0x021C
109
329
5000
10,000
±6.0
±10
65,535
Open−Drain Digital Outputs, PWM1 to PWM3, XTO
Current Sink, IOL
Output Low Voltage, VOL
IOUT = −8.0 mA
High Level Output Current, IOH
VOUT = VCC
Open−Drain Serial Data Bus Output (SDA)
8.0
0.4
0.1
20
Output Low Voltage, VOL
IOUT = −4.0 mA
High Level Output Current, IOH
VOUT = VCC
Digital Output Logic Levels, ADT7473−1 (THERM_LATCH) ADTL+
0.4
0.1
1.0
Output High Voltage, VOH
Output Low Voltage, VOL
SMBus Digital Inputs (SCL, SDA)
0.75 x VCC
0.4
Input High Voltage, VIH
Input Low Voltage, VIL
Hysteresis
Digital Input Logic Levels (TACH Inputs)
2.0
0.4
500
Input High Voltage, VIH
Maximum input voltage
2.0
3.6
Input Low Voltage, VIL
Minimum input voltage
0.8
−0.3
Hysteresis
0.5
Unit
V
mA
°C
°C
mA
%
LSB
%/V
ms
ms
ms
ms
kW
%
RPM
mA
V
mA
V
mA
V
V
V
V
mV
V
V
V p−p
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