ADT7476ARQH ONSEMI [ON Semiconductor], ADT7476ARQH Datasheet - Page 35

• Manufacturer Part Number: ADT7476ARQH
• Description: dBCOOL Remote Thermal Controller and Voltage Monitor
• Manufacturer: ONSEMI [ON Semiconductor]

Recommended Implementation 2
the system designer with the following features:
•
•
•
•
•
•
Configuring the ADT7476 as shown in Figure 50 provides
Six VID inputs (VID0, VID1, VID2, VID3, VID4, and
VID6) 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
controller). This is used to determine CPU power
consumption.
CC
measured internally through Pin 4.
CHASSIS
CHASSIS
COMP
FRONT
REAR
FAN
FAN
output of ADP316x VRM
TEMPERATURE
AMBIENT
CORE
Figure 50. Recommended Implementation 2
).
TACH2
PWM2
PWM3
TACH3
D1+
D1–
V
+5V
+12V
CC
http://onsemi.com
IN
IN
/VID5
ADT7476A
GND
VID[0:4]/VID[0:5]
35
•
•
•
•
•
•
THERM
TACH1
PWM1
5.0 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/input from an Intel P4 processor,
for example, or can be used as an overtemperature
THERM output.
SDA
SCL
D2+
D2–
5(VRM9)/6(VRM10)
PROCHOT
CPU FAN
ICH
CPU