W83627UHG Nuvoton Technology Corporation of America, W83627UHG Datasheet - Page 53

• Manufacturer Part Number: W83627UHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627UHG

• Applications: PC's, PDA's
• Interface: LPC
• Voltage - Supply: 3.3V, 5V
• Package / Case: 128-XFQFN
• Mounting Type: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The following figures illustrate two examples of Thermal Cruise
7.6.3.2. Fan Speed Cruise
Two pairs of fan input sensors and fan outputs in Fan Speed Cruise
Fan Speed Cruise
BIOS by a fan speed count (the amount of time between clock input signals, not the number of clock
input signals in a period of time) and an interval (e.g., 160 ± 10). As long as the fan speed count is in
the specified range, fan output remains the same. If the fan speed count is higher than the high end
•
•
•
•
if the current temperature is lower than the low end, decrease the fan speed;
otherwise, keep the fan speed the same.
SYSFANIN and SYSFANOUT
CPUFANIN and CPUFANOUT
Figure 7-11 Mechanism of Thermal Cruise
Figure 7-10 Mechanism of Thermal Cruise
TM
mode keeps the fan speed in a specified range. First, this range is defined in
TM
Mode
-38-
TM
TM
Mode (DC Output Voltage)
Mode (PWM Duty Cycle)
TM
Publication Release Date: March 24, 2008
mode.
TM
mode.
W83627UHG
Revision 1.44