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參數資料
| 型號： | ADT14GP |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Circular Connector; No. of Contacts:61; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Socket; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:25-61 |
| 中文描述： | ANALOG TEMP SENSOR-VOLTAGE, 2.49-2.52V, 3Cel, RECTANGULAR, THROUGH HOLE MOUNT |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數： | 10/16頁 |
| 文件大小： | 338K |
| 代理商： | ADT14GP |
ADT14
–10–
REV. 0
TEMP
SENSOR
& VOLTAGE
REFERENCE
HYSTERESIS
GENERATOR
13
14
15
9
10
11
12
16
6
7
8
1
2
3
4
5
NC
NC
V
REF
V+
4.7k
I
L
Q1
NC = NO CONNECT
ADT14
Figure 19a. An External Resistor Minimizes Self-Heating
High Current Switching
As mentioned earlier, internal dissipation due to large loads on
the ADT14 outputs will cause some temperature error due to
self-heating. External transistors buffer the load from the ADT14,
so that virtually no power is dissipated in the internal transistors
and minimal self-heating occurs. Figures 19a–19c show a few
examples using external transistors. The simplest case uses a
single transistor on the output to invert the output signal as
shown in Figure 19a. When the open-collector of the ADT14
turns ON and pulls the output down, the external transistor Q1’s
base will be pulled low, turning off the transistor. Another transis-
tor can be added to reinvert the signal as shown in Figure 19b.
Now, when the output of the ADT14 is pulled down, the first
transistor, Q1, turns off and its collector goes high, which turns
on Q2, pulling its collector low. Thus, the output taken from the
collector of Q2 is identical to the output of the ADT14. By pick-
ing a transistor that can accommodate large amounts of current,
many high power devices can be switched.
An example of a higher power transistor is a standard Darlington
configuration as shown in Figure 19c. The part chosen, TIP-110,
can handle 2 A continuous, which is more than enough to control
many high power relays. In fact the Darlington itself can be used
as the switch, similar to MOSFETs and IGBTs.
TEMP
SENSOR
& VOLTAGE
REFERENCE
HYSTERESIS
GENERATOR
13
14
15
9
10
11
12
16
6
7
8
1
2
3
4
5
NC
NC
V
REF
V+
4.7k
I
L
Q2
2N1711
4.7k
Q1
2N1711
NC = NO CONNECT
ADT14
Figure 19b. Second Transistor Maintains Polarity of
ADT14 Output
TEMP
&SENSOR
REFERENCE
HYSTERESIS
GENERATOR
13
14
15
9
10
11
12
16
6
7
8
1
2
3
4
5
NC
NC
V
REF
V+
4.7k
I
L
2N1711
4.7k
TIP110
RELAY
+12V
NC = NO CONNECT
ADT14
Figure 19c. Darlington Transistor Can Handle Large Currents
相關PDF資料 |
PDF描述 |
|---|---|
| ADT14GS | Circular Connector; No. of Contacts:61; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Socket; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:25-61 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADT14GS | 制造商:Analog Devices 功能描述:Temp Sensor Digital 16-Pin SOIC N 制造商:Rochester Electronics LLC 功能描述:QUAD SETPOINT TEMP. MONITOR/CONTROLLER - Bulk |
| ADT14GS-REEL | 制造商:Analog Devices 功能描述:Temp Sensor Digital 16-Pin SOIC N T/R |
| ADT15/RAE | 制造商:Assmann 功能描述:15w snap-in Dsub backshell black plastic |
| ADT-16 | 功能描述:TOOL 制造商:astro tool corp 系列:- 零件狀態:有效 工具類型:- 配套使用產品/相關產品:- 特性:- 標準包裝:1 |
| ADT16-6T | 制造商:Mini-Circuits 功能描述: |
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