ADT7476 Analog Devices, Inc., ADT7476 Datasheet - Page 12

• Manufacturer Part Number: ADT7476
• Description: Dbcool Remote Thermal Controller And Voltage Monitor
• Manufacturer: Analog Devices, Inc.

ADT7476
RECOMMENDED IMPLEMENTATION
Configuring the ADT7476, as shown in Figure 13, allows the
system designer to use the following features:
•
•
•
•
Two PWM outputs for fan control of up to three fans. (The
front and rear chassis fans are connected in parallel.)
Three TACH fan speed measurement inputs.
VCC measured internally through Pin 4.
CPU temperature measured using Remote 1 temperature
channel.
FRONT
CHASSIS
FAN
REAR
CHASSIS
FAN
AMBIENT
TEMPERATURE
Figure 13. ADT7476 Configuration
Rev. B | Page 12 of 72
TACH2
PWM3
TACH3
D1+
D1–
V
+5V
+12V
CC
IN
IN
ADT7476
/VID5
VID[0:4]/VID[0:5]
GND
SMBALERT
•
•
•
THERM
TACH1
PWM1
SDA
SCL
D2+
D2–
Remote temperature zone measured through Remote 2
temperature channel.
Local temperature zone measured through the internal
temperature channel.
Bidirectional THERM pin. This feature allows Intel
Pentium 4 PROCHOT monitoring and can function as an
overtemperature THERM output. It can alternatively be
programmed as an SMBALERT system interrupt output.
5(VRM9)/6(VRM10)
PROCHOT