ADT7473_11 ONSEMI [ON Semiconductor], ADT7473_11 Datasheet - Page 3

• Manufacturer Part Number: ADT7473_11
• Description: dbCOOL Remote Thermal Monitor and Fan Control
• Manufacturer: ONSEMI [ON Semiconductor]

ELECTRICAL CHARACTERISTICS
Power Supply
Temperature−to−Digital Converter
Analog−to−Digital Converter (Including MUX and Attentuators)
Fan RPM−to−Digital Converter
Open−Drain Digital Outputs, PWM1 to PWM3, XTO
Open−Drain Serial Data Bus Output (SDA)
Digital Output Logic Levels, ADT7473−1 (THERM_LATCH) ADTL+
SMBus Digital Inputs (SCL, SDA)
Digital Input Logic Levels (TACH Inputs)
Supply Voltage
Supply Current, I
Local Sensor Accuracy
Remote Diode Sensor Accuracy
Remote Sensor Source Current
Total Unadjusted Error (TUE)
Differential Nonlinearity (DNL)
Power Supply Sensitivity
Conversion Time (Voltage Input)
Conversion Time (Local Temperature)
Conversion Time (Remote Temperature)
Total Monitoring Cycle Time
Input Resistance
Accuracy
Full−Scale Count
Nominal Input RPM
Current Sink, I
Output Low Voltage, V
High Level Output Current, I
Output Low Voltage, V
High Level Output Current, I
Output High Voltage, V
Output Low Voltage, V
Input High Voltage, V
Input Low Voltage, V
Hysteresis
Input High Voltage, V
Input Low Voltage, V
Hysteresis
Resolution
Resolution
Parameter
OL
CC
IL
IL
IH
IH
OL
OL
OL
OH
OH
OH
T
A
= T
Interface inactive, ADC active
0°C ≤ T
−40°C ≤ T
0°C ≤ T
−40°C ≤ T
First Current
Second Current
Third Current
8 bits
Averaging enabled
Averaging enabled
Averaging enabled
Averaging enabled
Averaging disabled
For V
0°C ≤ T
−40°C ≤ T
Fan count = 0xBFFF
Fan count = 0x3FFF
Fan count = 0x0438
Fan count = 0x021C
I
V
I
V
Maximum input voltage
Minimum input voltage
OUT
OUT
OUT
OUT
MIN
= −8.0 mA
= −4.0 mA
CCP
= V
= V
to T
A
A
A
≤ 85°C
≤ 85°C
≤ 70°C
CC
CC
A
A
channel
A
MAX
≤ +125°C
≤ +125°C
≤ +120°C
http://onsemi.com
Conditions
, V
CC
= V
3
MIN
to V
MAX
, unless otherwise noted. (Note 1)
0.75 x V
−0.3
Min
3.0
2.0
2.0
70
CC
10,000
5000
±0.5
0.25
±0.5
0.25
±0.1
Typ
145
120
109
329
500
3.3
1.5
0.1
0.1
0.5
36
96
12
38
19
11
6
65,535
Max
±1.5
±2.5
±1.5
±2.5
±1.5
±1.0
±6.0
±10
3.6
3.0
8.0
0.4
0.4
1.0
0.4
0.4
3.6
0.8
20
V p−p
RPM
Unit
LSB
%/V
mA
mA
mV
mA
ms
ms
ms
ms
kW
mA
mA
°C
°C
%
%
V
V
V
V
V
V
V
V
V