LM96163CISDX/NOPB National Semiconductor, LM96163CISDX/NOPB Datasheet - Page 34
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LM96163CISDX/NOPB
Manufacturer Part Number
LM96163CISDX/NOPB
Description
IC TEMP SENSOR DGTL REMOTE 10LLP
Manufacturer
National Semiconductor
Series
PowerWise®, TruTherm®r
Datasheet
1.LM96163CISDNOPB.pdf
(42 pages)
Specifications of LM96163CISDX/NOPB
Function
Fan Control, Temp Monitor
Topology
ADC (Sigma Delta), Comparator, Register Bank, Tach
Sensor Type
External & Internal
Sensing Temperature
-40°C ~ 85°C, External Sensor
Output Type
SMBus™
Output Alarm
Yes
Output Fan
Yes
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
10-LLP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LM96163CISDX
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