ADT7467 Analog Devices, Inc., ADT7467 Datasheet - Page 39

• Manufacturer Part Number: ADT7467
• Description: Dbcool Remote Thermal Monitor And Fan Controller
• Manufacturer: Analog Devices, Inc.

Recommended Implementation
Configuring the ADT7467 as in Figure 54 provides the system
designer with the following features:
1.
2.
3.
4.
Two PWM outputs for control of up to three fans. (The
front and rear chassis fans are connected in parallel.)
Three TACH fan speed measurement inputs.
V
CPU core voltage measurement (V
CC
measured internally through Pin 4.
FRONT
CHASSIS
FAN
REAR
CHASSIS
FAN
AMBIENT
TEMPERATURE
CORE
).
Figure 54. Recommended Implementation
TACH2
PWM3
TACH3
D1+
D1–
V
CCP
Rev. A| Page 39 of 80
ADT7467
GND
SMBALERT
THERM
TACH1
PWM1
5.
6.
7.
8.
SDA
SCL
D2+
D2–
CPU temperature measured using the Remote 1
temperature channel.
Ambient temperature measured through the Remote 2
temperature channel.
The bidirectional THERM pin allows monitoring
PROCHOT output from, for example, an Intel P4
processor, or it can be used as an overtemperature THERM
output.
SMBALERT system interrupt output.
PROCHOT
CPU FAN
CPU
ICH
ADT7467