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LM57-Q1 Datasheet(PDF) 20 Page - Texas Instruments

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Part # LM57-Q1
Description  Resistor-Programmable Temperature Switch and Analog Temperature Sensor
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM57-Q1 Datasheet(HTML) 20 Page - Texas Instruments

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LM57-Q1
SNIS191A – JULY 2015 – REVISED JULY 2015
www.ti.com
7.3.3 Resistor Selection
Table 4. Trip Point (°C) vs Sense Resistor (RSENSE) Values (Ω)
(1)
RSENSE2
J2 (2)
J3 (2)
J4 (2)
J5
976 k
Ω
825 k
Ω
698 k
Ω
590 k
Ω
499 k
Ω
412 k
Ω
340 k
Ω
280 k
Ω
226 k
Ω
178 k
Ω
140 k
Ω
105 k
Ω
75 k
Ω
46.4 k
Ω
976 k
Ω
–40.68
–16.26
7.33
30.38
52.73
67.77
82.74
97.47
108.61
119.62
128.46
137.28
146.08
154.77
825 k
Ω
–39.13
–14.76
8.79
31.81
53.68
68.71
83.67
98.17
109.30
120.18
129.01
137.83
146.62
155.31
698 k
Ω
–37.57
–13.27
10.24
33.24
54.62
69.65
84.60
98.86
110.00
120.73
129.56
138.38
147.16
155.85
590 k
Ω
–36.03
–11.78
11.70
34.67
55.56
70.59
85.53
99.56
110.70
121.28
130.12
138.93
147.71
156.39
499 k
Ω
–34.49
–10.29
13.15
36.10
56.50
71.52
86.46
100.25
111.39
121.84
130.67
139.49
148.25
156.93
412 k
Ω
–32.95
–8.81
14.60
37.53
57.44
72.46
87.40
100.95
112.09
122.39
131.22
140.04
148.80
157.46
340 k
Ω
–31.41
–7.32
16.05
38.95
58.39
73.40
88.33
101.64
112.79
122.94
131.77
140.59
149.34
158.00
280 k
Ω
–29.88
–5.83
17.49
40.38
59.33
74.33
89.26
102.34
113.48
123.50
132.32
141.14
149.88
158.54
RSENSE1
226 k
Ω
–28.34
–4.35
18.93
41.81
60.27
75.27
90.19
103.03
114.18
124.05
132.87
141.69
150.43
159.08
178 k
Ω
–26.83
–2.88
20.36
43.23
61.21
76.20
91.12
103.73
114.87
124.60
133.43
142.24
150.97
159.62
140 k
Ω
–25.32
–1.42
21.79
44.65
62.15
77.14
92.05
104.42
115.57
125.15
133.98
142.79
151.51
160.16
105 k
Ω
–23.80
0.04
23.22
46.07
63.08
78.07
92.99
105.11
116.26
125.71
134.53
143.34
152.06
75 k
Ω
–22.29
1.50
24.65
47.50
64.02
79.01
93.92
105.81
116.95
126.26
135.08
143.89
152.60
46.4 k
Ω
–20.77
2.96
26.08
48.92
64.96
79.94
94.84
106.50
117.65
126.81
135.63
144.44
153.14
22.6 k
Ω
–19.26
4.42
27.51
50.33
65.90
80.87
95.77
107.19
118.34
127.36
136.18
144.99
153.68
0.01 k
Ω
–17.75
5.88
28.94
51.75
66.84
81.81
96.70
107.89
119.04
127.91
136.73
145.54
154.23
(1)
Temperatures above 150°C apply to the LM57FSPWQ1 and LM57TSPWQ1 only and are italicized.
(2)
There are four gains corresponding to each of the four Temperature Trip Point Ranges:
J2 (-5.166 mV/°C) is the temperature sensor output gain used for Temperature Trip Points
−40.68°C to 51.8°C.
J3 (-7.752 mV/°C) is for Trip Points 52°C to 97°C.
J4 (-10.339 mV/°C) for 97°C to 119°C.
J5 (-12.924 mV/°C) for 119°C to 160°C.
20
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