ADT7476ARQH ONSEMI [ON Semiconductor], ADT7476ARQH Datasheet - Page 37
ADT7476ARQH
Manufacturer Part Number
ADT7476ARQH
Description
dBCOOL Remote Thermal Controller and Voltage Monitor
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
1.ADT7476ARQH.pdf
(67 pages)
- Current page: 37 of 67
- Download datasheet (621Kb)
Mux Configuration Example
system using the ADT7476 to control three fans. The CPU
fan sink is controlled by PWM1, the front chassis fan is
controlled by PWM2, and the rear chassis fan is controlled
by PWM3. The mux is configured for the following fan
control behavior:
•
•
This is an example of how to configure the mux in a
PWM1 (CPU fan sink) is controlled by the fastest speed
calculated by the local (VRM temperature) and
Remote 2 (processor) temperature. In this case, the
CPU fan sink is also being used to cool the VRM.
PWM2 (front chassis fan) is controlled by the Remote 1
temperature (ambient).
AMBIENT TEMP
REMOTE 2 =
REMOTE 1 =
VRM TEMP
CPU TEMP
LOCAL =
THERMAL CALIBRATION
THERMAL CALIBRATION
THERMAL CALIBRATION
T
T
T
MIN
MIN
MIN
T
T
T
RANGE
RANGE
RANGE
Figure 52. Mux Configuration Example
100%
100%
100%
0%
0%
0%
MUX
http://onsemi.com
37
PWM
PWM
PWM
MIN
MIN
MIN
•
Example Mux Settings
[7:5] (BHVR), PWM1 Configuration Register (0x5C).
[7:5] (BHVR), PWM2 Configuration Register (0x5D).
[7:5] (BHVR), PWM3 Configuration Register (0x5E).
CONFIG
CONFIG
CONFIG
These settings configure the mux, as shown in Figure 52.
PWM3 (rear chassis fan) is controlled by the Remote 1
temperature (ambient).
TACHOMETER 1
MEASUREMENT
TACHOMETER 2
MEASUREMENT
TACHOMETER 3
MEASUREMENT
PWM
PWM
PWM
101 = Fastest speed calculated by local and Remote 2
000 = Remote 1 temperature controls PWM2
000 = Remote 1 temperature controls PWM3
GENERATOR
GENERATOR
GENERATOR
AND 4
PWM
PWM
PWM
temperature controls PWM1
ENHANCEMENT)
ENHANCEMENT)
ENHANCEMENT)
(ACOUSTIC
(ACOUSTIC
(ACOUSTIC
CONTROL
CONTROL
CONTROL
RAMP
RAMP
RAMP
PWM1
TACH1
PWM2
TACH2
PWM3
TACH3
FRONT CHASSIS
REAR CHASSIS
CPU FAN SINK
Related parts for ADT7476ARQH
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
300 Watt, SOT-23 Low Capacitance TVS for High Speed Line Protections
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
SWITCHMODE Power Rectifier
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
TMOS E−FET Power Field Effect Transistor DPAK for Surface Mount
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Trench Power MOSFET -20 V, Single P-Channel, SOT-23
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 12 A, 60 V
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 3.0 Amps 60 Volts N−Channel
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 2.0 A, 60 V, Logic Level
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 2 Amps, 500 Volts P−Channel D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 23 Amps, 25 Volts N−Channel D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET -60 V, -27.5 A, P-Channel D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 30 Amps, 200 Volts N−Channel Enhancement−Mode D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
N-Channel Enhancement−Mode D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
60 V, 60 A, N-Channel TO-220 and D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet: