w83l786r Winbond Electronics Corp America, w83l786r Datasheet - Page 20

• Manufacturer Part Number: w83l786r
• Description: H/w Monitoring Ic
• Manufacturer: Winbond Electronics Corp America

2 (default)
DIVISOR
128
16
32
64
1
4
8
Figure 7-1. Fan with Tach Pull-Up to +12V, or Totern-Pole
Figure 7-3. Fan with Tach Pull-Up to +5V, or Totern-Pole
FAN Out
FAN Out
+5V
GND
+12V
GND
+5V
+12V
NOMINAL RPM
Output and Register Attenuator
Output and Register Attenuator
8800
4400
2200
1100
550
275
137
68
Pull-up resister
4.7K Ohms
1K~2.7K
Pull-up resister
4.7K Ohms
22K~30K
Fan Input
10K
Fan Input
10K
REVOLUTION
109.08 ms
218.16 ms
436.32 ms
872.64 ms
TIME PER
13.64 ms
27.27 ms
54.54 ms
6.82 ms
Pin 11
Pin 12
W83L786R
W83L786R
Pin 11
Pin 12
Table 2
- 14 -
Connector
Connector
COUNTS
FAN
Figure 7-2. Fan with Tach Pull-Up to +12V, or
FAN
Figure 7-4. Fan with Tach Pull-Up to +5V, or
153
153
153
153
153
153
153
153
FAN Out
FAN Out
W83L786R/ W83L786G
+12V
GND
+5V
GND
Totem-Pole Putput and Zener Clamp
+12V
Totem-Pole Putput and Zener Clamp
+5V
Publication Release Date: March 06
70% RPM
Pull-up resister < 1K
or totem-pole output
Pull-up resister < 1K
or totem-pole output
6160
3080
1540
3.3V Zener
770
385
192
3.3V Zener
96
48
> 1K
> 1K
Fan Input
Fan Input
1246.72 ms
155.84 ms
311.68 ms
623.36 ms
TIME FOR
19.48 ms
38.96 ms
77.92 ms
W83L786R
Pin 11
Pin 12
9.74 ms
W83L786R
Pin 11
Pin 12
70%
Revision0.8