ADT7476ARQH View Datasheet(PDF) - ON Semiconductor
Part Name
Description
Manufacturer
ADT7476ARQH Datasheet PDF : 67 Pages
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ADT7476
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
Low level
11
High level
180
Analog−to−Digital Converter (Including MUX and Attentuators)
Total Unadjusted Error (TUE)
For 12 V channel
±2
For all other channels
±1.5
Differential Non−linearity (DNL)
8 bits
±1
Power Supply Sensitivity
±0.1
Conversion Time
Averaging enabled
Voltage Input
11
Local Temperature
12
Remote Temperature
38
Total Monitoring Cycle Time
Averaging enabled
145
Averaging disabled
19
Input Resistance
For VCCP channel
For all other channels
70
120
70
114
Fan RPM−To−Digital Converter
Accuracy
Full−Scale Count
0°C ≤ TA ≤ 70°C
−40°C ≤ TA ≤ +120°C
±6
±10
65,535
Nominal Input RPM
Fan count = 0xBFFF
Fan count = 0x3FFF
Fan count = 0x0438
Fan count = 0x021C
109
329
5000
10,000
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
SMBus Digital Inputs (SCL, SDA) (Note 2)
0.4
0.1
1.0
Input High Voltage, VIH
Input Low Voltage, VIL
Hysteresis
2.0
0.4
500
Digital Input Logic Levels (TACH Inputs)
Input High Voltage, VIH
Input Low Voltage, VIL
Hysteresis
Maximum input voltage
Minimum input voltage
2.0
3.6
−0.3
0.8
0.5
Unit
V
mA
°C
°C
mA
%
LSB
%/V
ms
ms
kW
%
RPM
mA
V
mA
V
mA
V
V
mV
V
V
V p−p
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