adt7476a Analog Devices, Inc., adt7476a Datasheet - Page 38

• Manufacturer Part Number: adt7476a
• Description: Dbcool Remote Thermal Controller And Voltage Monitor
• Manufacturer: Analog Devices, Inc.

ADT7476A
Recommended Implementation 1
Configuring the ADT7476A as shown in Figure 49 provides the
system designer with the following features:
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•
•
•
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Six VID inputs (VID0, VID1, VID2, VID3, VID4, and
VID6) for VRM10 support.
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.
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.
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
IN
Rev. 0 | Page 38 of 72
/VID5
ADT7476A
GND
VID[0:4]/VID[0:5]
SMBALERT
THERM
TACH1
PWM1
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•
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•
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•
SDA
SCL
D2+
D2–
5 V measurement input.
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 from an Intel P4 processor, for example,
or can be used as an overtemperature THERM output.
SMBALERT system interrupt output.
5(VRM9)/6(VRM10)
PROCHOT
CPU FAN
ICH
CPU