W83627DHG-PT Nuvoton Technology Corporation of America, W83627DHG-PT Datasheet - Page 64

• Manufacturer Part Number: W83627DHG-PT
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627DHG-PT

• Pin Count: 128
• Lead Free Status / RoHS Status: Compliant

(4) If the current temperature falls below (Target Temperature － Temperature Tolerance), the fan
(5) If the current temperature is always lower than (Target Temperature X － Temperature Tolerance),
Temperature Tolerance), or Target Temperature 2. This process repeats whenever the current
temperature is higher than (Target Temperature X ± Temperature Tolerance) or until the fan
speed reaches its maximum speed.
speed falls one step. The step is the value in the CPUFANOUT Output Value Select Register,
Bank0 Index 03h or Index 61h. In addition, the target temperature shifts to (Target Temperature －
Temperature Tolerance), creating a new target temperature named Target Temperature 1.This is
illustrated in the figure below.
If the current temperature falls lower than (Target Temperature 1 － Temperature Tolerance), the
fan speed is reduced one step again, and the target temperature shifts to (Target Temperature 1
－ Temperature Tolerance), or Target Temperature 2. This process repeats whenever the current
temperature is lower than (Target Temperature X － Temperature Tolerance) or until the fan
speed reaches its minimum speed.
the fan speed decreases slowly to zero or to a specified stop value. The stop value is enabled by
register Bank0 Index 12h, bit 4 and bit 6, and the stop value is specified in Bank0 Index 09h and
Index 64h. The fan remains at the stop value for the period of time defined in Bank0 Index 0Dh
and Index 66h.
Step
Step
Max. Fan Output
Max. Fan Output
Min. Fan Output
Min. Fan Output
(DC / PWM)
(DC / PWM)
Fan output
Fan output
Output Value
Output Value
Fan Initial
Fan Initial
Figure 8-17 S
Current Temp. < Target Temp. - Tol .
Current Temp. < Target Temp. - Tol .
MART
F
AN
Tar 3
Tar 3
TM
Tolerance
Tolerance
III Mechanism (Current Temp. < Target Temp. - Tol.)
Tar 2
Tar 2
W83627DHG-P/W83627DHG-PT
Tar 1
Tar 1
Tar
Tar
-54-
Publication Release Date: July 09, 2009
Temperature
Temperature
Version 1.94