ADT7476 Analog Devices, Inc., ADT7476 Datasheet - Page 40

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

ADT7476
Recommended Implementation 2
Configuring the ADT7476 as in Figure 50 provides the system
designer with the following features:
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•
•
•
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Six VID inputs (VID0 to VID5) for VRM10 support.
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
2.5 V measurement input used to monitor CPU current
(connected to V
This is used to determine CPU power consumption.
5 V measurement input.
CC
measured internally through Pin 4.
COMP
CHASSIS
CHASSIS
FRONT
REAR
output of ADP316x VRM controller).
FAN
FAN
TEMPERATURE
AMBIENT
CORE
).
Figure 49. Recommended Implementation 1
TACH2
PWM3
TACH3
D1+
D1–
V
+5V
+12V
CC
IN
Rev. B | Page 40 of 72
IN
/VID5
ADT7476
GND
VID[0:4]/VID[0.5]
SMBALERT
THERM
TACH1
PWM1
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•
SDA
SCL
D2+
D2–
VRM temperature using local temperature sensor.
CPU temperature measured using the Remote 1
temperature channel.
Ambient temperature measured through the Remote 2
temperature channel.
If not using VID5, it can be reconfigured as the 12 V
monitoring input.
Bidirectional THERM pin allows the monitoring of
PROCHOT output/input from an Intel Pentium 4
processor, for example, or can be used as an
overtemperature THERM output.
5(VRM9)/6(VRM10)
PROCHOT
CPU FAN
ICH
CPU