ADT7473 Analog Devices, Inc., ADT7473 Datasheet - Page 4

• Manufacturer Part Number: ADT7473
• Description: Dbcool Remote Thermal Monitor And Fan Controller
• Manufacturer: Analog Devices, Inc.

ADT7473
SPECIFICATIONS
T
Table 1.
Pa
POWER SUPPLY
TE
AN
(IN
FAN RPM-TO-DIGITAL CONVERTER
OPEN-DRAIN DIGITAL OUTPUTS,
PWM1 TO PWM3, XTO
OPEN-DRAIN SERIAL DATA BUS OUTPUT (SDA)
SMBus DIGITAL INPUTS (SCL, SDA)
A
Supply Voltage
Supply Current, I
MP-TO-DIGITAL CONV
Local Sensor Accuracy
Resolution
Remote Diode Sensor Accuracy
Resolution
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
Input High Voltage, V
Input Low Voltage, V
Hysteresis
rameter
CLUDING MUX A
= T
ALOG-TO-DIGITAL
MIN
to T
MAX
OL
, V
CC
N
CC
D ATTENTUATORS)
CONVERTER
IL
=
IH
ERTER
OL
OL
V
MIN
OH
OH
to V
MAX
, unless other
wise
2.0
M
3
70
.0
in
noted.
Rev. A | Page 4 of 76
1
T
3.3
1.5
±
0.25
±0.5
0.25
6
3
9
±
11
12
38
145
19
120
109
329
5,000
10,000
0.1
0.1
500
yp
6
6
0.5
0.1
Max
3.
3
±1.5
±2.5
±
±2.5
±1.5
±1
±6
±10
65,535
8.0
0.4
20
0.4
1.0
0.4
1.5
6
Un
V
m
°C
°C
°C
°C
°C
°C
µA
µA
µΑ
%
LSB
%/V
ms
ms
ms
ms
ms
kΩ
%
%
RPM
RPM
RPM
RPM
mA
V
µA
V
µA
V
V
mV
A
it
T
In
0°C ≤
−40°C
0°C ≤ T
−40°C
F
S
Thir
8 bits
Averaging enabled
Averaging enabled
Averaging enabled
Averaging enabled
Averaging disabled
For V
0°C ≤ T ≤ 70°C
−40°C ≤ T
Fan count = 0xBFFF
Fan count = 0x3FFF
Fan count = 0x0438
Fan count = 0x021C
I
V
I
V
OUT
OUT
est Conditions/Comments
irst current
econd current
OUT
OUT
terface inactive, ADC active
d current
= −8.0 mA
= −4.0 mA
= V
= V
CCP
T
≤ T
≤ T
A
A
A
CC
CC
channel
≤ 85°C
≤ 85°C
A
A
A
≤ 125°C
≤ +125°C
≤ +120°C