ADT7463ARQ datasheet(8/52 Pages) AD

Part #	ADT7463ARQ

Description	dB COOL Remote Thermal Controller and Voltage Monitor

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REV. 0

–8–

ADT7463

TACH2

PWM3

TACH3

D1+

D1–

3.3VSB

5V

12V/VID5

CURRENT

VCORE

GND

SMBALERT

ADT7463

SCL

SDA

THERM

D2+

D2–

VID[0:4]/VID[0:5]

TACH1

PWM1

ADP316x

VRM

CONTROLLER

FRONT

CHASSIS

FAN

REAR

CHASSIS

FAN

AMBIENT

TEMPERATURE

VCOMP

5(VRM9)/6(VRM10)

PROCHOT

Figure 2. Recommended Implementation

RECOMMENDED IMPLEMENTATION

Configuring the ADT7463 as in Figure 2 allows the systems

designer the following features:

• Six VID inputs (VID0 to VID5) 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

• VCC measured internally through Pin 4

• CPU core voltage measurement (VCORE)

• 2.5 V measurement input used to monitor CPU current

(connected to VCOMP output of ADP316x VRM Control-

ler). This is used to determine CPU power consumption.

• 5 V measurement input

• VRM temperature uses local temperature sensor

• CPU temperature measured using Remote 1 temperature

channel

• Ambient temperature measured through Remote 2 tempera-

ture channel

• If not using VID5, this pin can be reconfigured as the 12 V

monitoring input

• Bidirectional THERM pin. Allows Intel P4 PROCHOT

Monitoring and can function as an overtemperature

THERM output.

• SMBALERT system interrupt output

See ADT7463 Configuration App Note for more information

and register settings for all possible configurations.

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ADT7463ARQ Datasheet(PDF) 8 Page - Analog Devices

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