W83627THF_06 Datasheet, PDF (34/142 Pages) Winbond – Winbond LPC I/O

W83627THF/W83627THG
DIVISOR
1
2 (default)
4
8
16
32
64
128
NOMINAL
RPM
8800
4400
2200
1100
550
275
137
68
TIME PER
REVOLUTION
COUNTS
6.82 ms
153
13.64 ms
153
27.27 ms
153
54.54 ms
153
109.08 ms
153
218.16 ms
153
436.32 ms
153
872.64 ms
153
Table 5-2
+12V
+12V
FAN Out
GND
FAN
Connector
+5V
Pull-up resister
4.7K Ohms
Pin112 -113,5
Fan Input
W83627THFD
+12V
+12V
FAN Out
GND
FAN
Connector
70% RPM
6160
3080
1540
770
385
192
96
48
TIME FOR
70%
9.84 ms
19.48 ms
38.96 ms
77.92 ms
155.84 ms
311.68 ms
623.36 ms
1246.72 ms
Pull-up resister
4.7K Ohms
14K~39K
Pin 112-113,5
Fan Input
10K ^W83627THFD
Figure 5-4. Fan with Tach Pull-Up to +5V
+12V
Figure 5-5. Fan with Tach Pull-Up to +12V, or Totem-Pole
Output and Register Attenuator
+12V
+12V
FAN Out
GND
FAN
Connector
Pull-up resister
> 1K
Pin 112-113,5
Fan Input
3.9V Zener _W83627THFD
Figure 5-6. Fan with Tach Pull-Up to +12V
and Zener Clamp
+12V
FAN Out
GND
FAN
Connector
Pull-up resister < 1K
or totem-pole output
> 1K
Pin 112-113,5
Fan Input
3.9V Zener
W83627THFD
Figure 5-7. Fan with Tach Pull-Up to +12V, or
Totem-Pole Putput and Zener Clamp
- 27 -
Publication Release Date: September 26, 2006
Revision 1.2