ADT7475 Analog Devices, Inc., ADT7475 Datasheet - Page 36

• Manufacturer Part Number: ADT7475
• Description: Dbcool Remote Thermal Monitor And Fan Controller
• Manufacturer: Analog Devices, Inc.

ADT7475
Recommended Implementation 2
Configuring the ADT7475 as in Figure 46 provides the system
designer with the following features:
•
•
•
•
Three PWM outputs for fan control of up to three fans.
(All three fans can be individually controlled.)
Three TACH fan speed measurement inputs.
V
CPU core voltage measurement (V
CC
measured internally through Pin 3.
CHASSIS
CHASSIS
FRONT
REAR
FAN
FAN
TEMPERATURE
AMBIENT
CORE
).
Figure 46. Recommended Implementation 2
TACH2
PWM2
PWM3
TACH3
D1+
D1–
Rev. B | Page 36 of 68
ADT7475
GND
THERM
TACH1
•
•
•
PWM1
SDA
SCL
D2+
D2–
CPU temperature measured using the Remote 1
temperature channel.
Ambient temperature measured through the Remote 2
temperature channel.
Bidirectional THERM pin that allows the monitoring of
PROCHOT output from an Intel Pentium 4 processor, for
example, or can be used as an overtemperature THERM
output.
PROCHOT
CPU FAN
ICH
CPU