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參數(shù)資料
| 型號(hào)： | TMP12FS |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Airflow and Temperature Sensor |
| 中文描述： | 氣流和溫度傳感器 |
| 文件頁(yè)數(shù)： | 5/14頁(yè) |
| 文件大小： | 446K |
| 代理商： | TMP12FS |
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TMP12
REV. 0
–5–
HEATER RESISTOR POWER DISSIPATION – mW
35
30
0
0
50
100
150
200
20
15
10
5
25
AIR FLOW RATES
V = 5V
SO–8 SOLDERED TO .5 " .3" Cu PCB
J
°
C
250
a. 0 FPM
c. 450 FPM
b. 250 FPM
d. 600 FPM
a
b
c
d
Figure 1. SOIC Junction Temperature Rise vs. Heater
Dissipation
HEATER RESISTOR POWER DISSIPATION – mW
J
°
C
25
20
00
250
50
100
150
200
15
10
5
AIR FLOW RATES
V = 5V
PDIP SOLDERED TO 2" 1.31" Cu PCB
a. 0 FPM
c. 450 FPM
b. 250 FPM
d. 600 FPM
a
b
c
d
Figure 2. PDIP Junction Temperature Rise vs. Heater
Dissipation
TIME – sec
25
20
0
15
10
5
30
35
40
45
50
55
60
65
70
0
10
20
30
40
50
60
70
80
90 100 110 120 130
V = 5V RHEATER TO EXTERNAL
SUPPLY TURNED ON @ t = 5 sec
SO–8 SOLDERED TO .5" .3" COPPER PCB
PDIP SOLDERED TO 2" 1.31 COPPER PCB
a. SO–8, HTR @ 5V
b. PDIP, HTR @ 5V
c. SO–8, HTR @ 3V
d. PDIP, HTR @ 3V
a
b
c
d
J
°
C
Figure 3. Junction Temperature Rise in Still Air
TRANSITION FROM 100
°
C STIRRED
BATH TO FORCED 25
°
C AIR
V = 5V, NO LOAD, HEATER OFF
SO–8 SOLDERED TO .5" .3" Cu PCB
PDIP SOLDERED TO 2" 1.31" Cu PCB
AIR VELOCITY – FPM
140
00
700
100
T
200
300
400
500
600
120
80
60
40
20
100
a. PDIP PCB
b. SOIC PCB
a
b
Figure 4. Package Thermal Time Constant in Forced Air
TIME – sec
80
30
0
0
2
J
°
C
4
6
8
10
12
14
16
18
20
70
40
20
10
60
50
90
100
110
120
V = 5V, NO LOAD, HEATER OFF
SO–8 SOLDERED TO .5" .3" Cu PCB
PDIP SOLDERED TO 2" 1.31" Cu PCB
a. SO–8 PCB
b. PDIP PCB
a
b
TRANSITION FROM STILL 25
°
C
AIR TO STIRRED 100
°
C BATH
Figure 5. Thermal Response Time in Stirred Oil Bath
TEMPERATURE –
°
C
102
99.5
98
-75
H
-25
25
75
125
175
101.5
100
99
98.5
101
100.5
V+ = +5V
Figure 6. Heater Resistance vs. Temperature
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