lm96163cisdx-1 National Semiconductor Corporation, lm96163cisdx-1 Datasheet - Page 34

• Manufacturer Part Number: lm96163cisdx-1
• Description: Remote Diode Digital Temperature Sensor With Integrated Fan Control And Trutherm Bjt Transistor Beta Compensation Technology
• Manufacturer: National Semiconductor Corporation

www.national.com
FE
FF
Address
PWM
Freq
[4:0]
ID Registers
3.0 Application Notes
3.1 FAN CONTROL DUTY CYCLE VS. REGISTER SETTINGS AND FREQUENCY
The following table is true only when the 22.5 kHz PWM frequency high resolution duty cycle is not selected.
4D
HEX
HEX
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Hex
0
1
2
3
4
5
6
7
8
9
FE
FF
STEPPING / DIE REVISION ID REGISTER (8-bits)
MANUFACTURER’S ID REGISTER (8-bits)
Resolution,
Read/
Write
R
R
Step
16.7
12.5
10.0
8.33
7.14
6.25
5.56
5.00
4.54
4.16
3.85
3.57
3.33
3.13
2.94
2.78
2.63
2.50
2.38
2.27
2.17
2.08
2.00
1.92
1.85
1.79
1.72
1.67
1.61
50
25
%
Bits
7:0
7:0
Value
POR
0x01
0x49
for 100%
4C [5:0]
Value
PWM
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
2
4
6
8
Manufacturer’s ID 0x01 = National Semiconductor
Stepping/Die
Revision ID
Name
4C [5:0] for
about 75%
Value
PWM
11
12
14
15
17
18
20
21
23
24
26
27
29
30
32
33
35
36
38
39
41
42
44
45
47
1
3
5
6
8
9
Address 0 is mapped to Address 1
Version of LM96163
4C [5:0]
for 50%
Value
PWM
34
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
2
3
4
5
6
7
8
9
Clock, kHz
360 kHz
Internal
Freq at
PWM
180.0
90.00
60.00
45.00
36.00
30.00
25.71
22.50
20.00
18.00
16.36
15.00
13.85
12.86
12.00
11.25
10.59
10.00
9.47
9.00
8.57
8.18
7.82
7.50
7.20
6.92
6.67
6.42
6.21
6.00
5.81
Description
Clock, Hz
Internal
1.4 kHz
Freq at
PWM
703.1
351.6
234.4
175.8
140.6
117.2
100.4
87.9
78.1
70.3
63.9
58.6
54.1
50.2
46.9
43.9
41.4
39.1
37.0
35.2
33.5
32.0
30.6
29.3
28.1
27.0
26.0
25.1
24.2
23.4
22.7
75% is Selected
Cycle, % When
Actual Duty
77.27
75.00
76.92
75.00
76.67
75.00
76.47
75.00
76.32
75.00
76.19
75.00
76.09
75.00
76.00
75.00
75.93
75.00
75.86
75.00
75.81
50.0
75.0
83.3
75.0
80.0
75.0
78.6
75.0
77.8
75.0