数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

LM64 数据表(PDF) 25 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
部件名 LM64
功能描述  짹1째C Remote Diode Temperature Sensor with PWM Fan Control and 5 GPIO?셲
PDF  29 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LM64 数据表(HTML) 25 Page - National Semiconductor (TI)

Back Button LM64 Datasheet HTML 21Page - National Semiconductor (TI) LM64 Datasheet HTML 22Page - National Semiconductor (TI) LM64 Datasheet HTML 23Page - National Semiconductor (TI) LM64 Datasheet HTML 24Page - National Semiconductor (TI) LM64 Datasheet HTML 25Page - National Semiconductor (TI) LM64 Datasheet HTML 26Page - National Semiconductor (TI) LM64 Datasheet HTML 27Page - National Semiconductor (TI) LM64 Datasheet HTML 28Page - National Semiconductor (TI) LM64 Datasheet HTML 29Page - National Semiconductor (TI)  
Zoom Inzoom in Zoom Outzoom out
 25 / 29 page
background image
3.0 Application Notes
3.1 FAN CONTROL DUTY CYCLE VS. REGISTER SETTINGS AND FREQUENCY
PWM
Freq
4D
[4:0]
Step
Resolution,
%
PWM
Value
4D [5:0]
for 100%
PWM
Value
4C [5:0] for
about 75%
PWM
Value
4C [5:0]
for 50%
PWM
Freq at
360 kHz
Internal
Clock, kHz
PWM
Freq at
1.4 kHz
Internal
Clock, Hz
Actual Duty
Cycle, % When
75% is Selected
0
Address 0 is mapped to Address 1
1
50
2
1
1
180.0
703.1
50.0
2
25
4
3
2
90.00
351.6
75.0
3
16.7
6
5
3
60.00
234.4
83.3
4
12.5
8
6
4
45.00
175.8
75.0
5
10.0
10
8
5
36.00
140.6
80.0
6
8.33
12
9
6
30.00
117.2
75.0
7
7.14
14
11
7
25.71
100.4
78.6
8
6.25
16
12
8
22.50
87.9
75.0
9
5.56
18
14
9
20.00
78.1
77.8
10
5.00
20
15
10
18.00
70.3
75.0
11
4.54
22
17
11
16.36
63.9
77.27
12
4.16
24
18
12
15.00
58.6
75.00
13
3.85
26
20
13
13.85
54.1
76.92
14
3.57
28
21
14
12.86
50.2
75.00
15
3.33
30
23
15
12.00
46.9
76.67
16
3.13
32
24
16
11.25
43.9
75.00
17
2.94
34
26
17
10.59
41.4
76.47
18
2.78
36
27
18
10.00
39.1
75.00
19
2.63
38
29
19
9.47
37.0
76.32
20
2.50
40
30
20
9.00
35.2
75.00
21
2.38
42
32
21
8.57
33.5
76.19
22
2.27
44
33
22
8.18
32.0
75.00
23
2.17
46
35
23
7.82
30.6
76.09
24
2.08
48
36
24
7.50
29.3
75.00
25
2.00
50
38
25
7.20
28.1
76.00
26
1.92
52
39
26
6.92
27.0
75.00
27
1.85
54
41
27
6.67
26.0
75.93
28
1.79
56
42
28
6.42
25.1
75.00
29
1.72
58
44
29
6.21
24.2
75.86
30
1.67
60
45
30
6.00
23.4
75.00
31
1.61
62
47
31
5.81
22.7
75.81
3.1.1 Computing Duty Cycles for a Given Frequency
Select a PWM Frequency from the first column correspond-
ing to the desired actual frequency in columns 6 or 7. Note
the PWM Value for 100% Duty Cycle.
Find the Duty Cycle by taking the PWM Value of Register 4C
and computing:
Example: For a PWM Frequency of 24, a PWM Value at
100% = 48 and PWM Value actual = 28, then the Duty Cycle
is (28/48) x 100% = 58.3%.
www.national.com
25



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com