W83627EHG Nuvoton Technology Corporation of America, W83627EHG Datasheet - Page 61

• Manufacturer Part Number: W83627EHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627EHG

• Applications: PC's, PDA's
• Interface: LPC
• Voltage - Supply: 3.3V
• Package / Case: 128-XFQFN
• Mounting Type: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(10) The fan-slow-down and Target Temperature comparison-then-shift process continue until
(11)
(12) In the case that the temperature is always lower than (Target Temperature X － Temperature
Max. Fan Output
Max. Fan Output
Max. Fan Output
(DC / PWM)
(DC / PWM)
(DC / PWM)
Min. Fan Output
Min. Fan Output
Min. Fan Output
Fan output
Fan output
Fan output
currently measured temperature locates within (Target Temperature X ± Temperature Tolerance),
or fan output speed hits its minimum speed.
words,
Tolerance), and, for some reason, the fan speed would like to be kept at the minimum speed, Stop
Value, instead of being stopped, set register Bank0 12h.bit 4. Set bit 4 to 1, fan speed will always
keep at the value set in Bank0 Index09h when temperature is always below (Target Temperature X
－ Temperature Tolerance). Set bit 4 to 0, fan speed will decrease to 0 after a time period set in
Bank0 Index 0Dh.
Please be noted that “Speed-down Slope” shown in the Figure 7.11 must be an integer.
InitialOut
put
Step
−
Min
.
FanOutput
Tar. - Tol.
Tar. - Tol.
Tar. - Tol.
must be an integer; otherwise, it may lead to register overflow.
Setting
Setting
Setting
W83627EHF/EF, W83627EHG/EG
Figure 7.9
- 50 -
Tolerance
Tolerance
Tolerance
Tar. + Tol.
Tar. + Tol.
Tar. + Tol.
Temperature
Temperature
In other