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LM64 Datasheet(PDF) 30 Page - Texas Instruments

Part # LM64
Description  LM64 ±1°C Remote Diode Temperature Sensor with PWM Fan Control and 5 GPIOs
PDF  42 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

LM64 Datasheet(HTML) 30 Page - Texas Instruments

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8 Application and Implementation
Note
Information in the following applications sections is not part of the TI component specification,
and TI does not warrant its accuracy or completeness. TI’s customers are responsible for
determining suitability of components for their purposes, as well as validating and testing their design
implementation to confirm system functionality.
8.1 Application Information
8.1.1 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
LM64
SNAS207B – MAY 2004 – REVISED JANUARY 2024
www.ti.com
30
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Copyright © 2024 Texas Instruments Incorporated
Product Folder Links: LM64



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