W83L786NR Datasheet, PDF (22/50 Pages) Winbond – H/W Monitoring IC

W83L786NR/ W83L786NG
A
58`C
D
B
C
55`C
52`C
PWM ^{100 Fan Start = 20%}
Duty
Cycle ⁵⁰
0
Fan Stop = 10%
Figure 11-2
Fan Start = 20%
Of course, SMART FAN^TM control system can be disabled and the fan speed control algorithm can be
programmed by BIOS or application software.
7.6.4 SMART FANTM II Control
W83786NR/NG provides 4 temperature points each can automatically control PWM or DC fan mode.
Each temperature maps different fan out level, the relationship is shown as follows:
Fan Duty Cycle
Temp. Tolerance
Fan Duty Cycle 100%
Fan Duty Cycle Level 3
Fan Duty Cycle Level 2
Fan Duty Cycle Level 1
Non-Stop Duty Cycle
Temp. 1
Temp.2
Temp.3
Temp.4
behaviors
Temperature
Figure 12 SMART FAN^TM II
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Publication Release Date: March 31, 2006
Revision 0.9