ADT7473 Analog Devices, Inc., ADT7473 Datasheet - Page 35

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

Recommended Implementation 1
Configuring the ADT7473, as in Figure 46, provides the system
designer with the following features:
•
•
•
•
•
Two PWM outputs for fan control of up to three fans. (
front and rear chassis fans are connected in parallel.
Three TACH fan speed measurement inputs.
V
CPU core voltage measurement (V
VRM temperature using local temperature sensor.
CC
measured internally through Pin 4.
CHASSIS
CHASSIS
FRONT
REAR
FAN
FAN
TEMPERATURE
AMBIENT
CORE
).
Figure 46. Recommended Implementation 1
)
TACH2
PWM3
TACH3
D1+
D1–
The
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ADT7473
GND
SMBALERT
THERM
TACH1
•
•
•
•
PWM1
SDA
SCL
D2+
D2–
CPU temperature measured using the Remote 1
temperature channel.
Ambient temperature measured through t
temperature channel.
Bidirectional THERM pin allows the monitoring of
PROCHOT output from an Intel Pentium 4 processor, for
example, or can be used as an overtemperature THERM
output.
SMBALERT system interrupt output.
PROCHOT
CPU FAN
ICH
CPU
he Remote 2
ADT7473