поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

LM19CIZ датащи(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
номер детали LM19CIZ
подробное описание детали  2.4V, 10uA, TO-92 Temperature Sensor
Download  8 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  NSC [National Semiconductor (TI)]
домашняя страница  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM19CIZ датащи(HTML) 5 Page - National Semiconductor (TI)

  LM19CIZ Datasheet HTML 1Page - National Semiconductor (TI) LM19CIZ Datasheet HTML 2Page - National Semiconductor (TI) LM19CIZ Datasheet HTML 3Page - National Semiconductor (TI) LM19CIZ Datasheet HTML 4Page - National Semiconductor (TI) LM19CIZ Datasheet HTML 5Page - National Semiconductor (TI) LM19CIZ Datasheet HTML 6Page - National Semiconductor (TI) LM19CIZ Datasheet HTML 7Page - National Semiconductor (TI) LM19CIZ Datasheet HTML 8Page - National Semiconductor (TI)  
Zoom Inzoom in Zoom Outzoom out
 5 / 8 page
background image
1.0 LM19 Transfer Function (Continued)
2.0 Mounting
The LM19 can be applied easily in the same way as other
integrated-circuit temperature sensors. It can be glued or
cemented to a surface. The temperature that the LM19 is
sensing will be within about +0.02˚C of the surface tempera-
ture to which the LM19’s leads are attached.
This presumes that the ambient air temperature is almost the
same as the surface temperature; if the air temperature were
much higher or lower than the surface temperature, the
actual temperature measured would be at an intermediate
temperature between the surface temperature and the air
temperature.
To ensure good thermal conductivity the backside of the
LM19 die is directly attached to the GND pin. The temper-
tures of the lands and traces to the other leads of the LM19
will also affect the temperature that is being sensed.
Alternatively, the LM19 can be mounted inside a sealed-end
metal tube, and can then be dipped into a bath or screwed
into a threaded hole in a tank. As with any IC, the LM19 and
accompanying wiring and circuits must be kept insulated and
dry, to avoid leakage and corrosion. This is especially true if
the circuit may operate at cold temperatures where conden-
sation can occur. Printed-circuit coatings and varnishes such
as Humiseal and epoxy paints or dips are often used to
ensure that moisture cannot corrode the LM19 or its connec-
tions.
The thermal resistance junction to ambient (
θ
JA) is the pa-
rameter used to calculate the rise of a device junction tem-
perature due to its power dissipation. For the LM19 the
equation used to calculate the rise in the die temperature is
as follows:
T
J =TA +
θ
JA [(V
+ I
Q)+(V
+ −V
O)IL]
where I
Q is the quiescent current and ILis the load current on
the output. Since the LM19’s junction temperature is the
actual temperature being measured care should be taken to
minimize the load current that the LM19 is required to drive.
The tables shown in Figure 3 summarize the rise in die
temperature of the LM19 without any loading, and the ther-
mal resistance for different conditions.
3.0 Capacitive Loads
The LM19 handles capacitive loading well. Without any pre-
cautions, the LM19 can drive any capacitive load less than
300 pF as shown in Figure 4. Over the specified temperature
range the LM19 has a maximum output impedance of 160
Ω.
In an extremely noisy environment it may be necessary to
add some filtering to minimize noise pickup. It is recom-
mended that 0.1 µF be added from V
+ to GND to bypass the
power supply voltage, as shown in Figure 5. In a noisy
environment it may even be necessary to add a capacitor
from the output to ground with a series resistor as shown in
Figure 5. A 1 µF output capacitor with the 160
Ω maximum
output impedance and a 200
Ω series resistor will form a 442
Hz lowpass filter. Since the thermal time constant of the
LM19 is much slower, the overall response time of the LM19
will not be significantly affected.
Temperature Range
Linear Equation
V
O=
Maximum Deviation of Linear Equation
from Parabolic Equation (˚C)
T
min (˚C)
T
max (˚C)
−55
+130
−11.79 mV/˚C x T + 1.8528 V
±1.41
−40
+110
−11.77 mV/˚C x T + 1.8577 V
±0.93
−30
+100
−11.77 mV/˚C x T + 1.8605 V
±0.70
-40
+85
−11.67 mV/˚C x T + 1.8583 V
±0.65
−10
+65
−11.71 mV/˚C x T + 1.8641 V
±0.23
+35
+45
−11.81 mV/˚C x T + 1.8701 V
±0.004
+20
+30
−11.69 mV/˚C x T + 1.8663 V
±0.004
FIGURE 2. First Order Equations Optimized For Different Temperature Ranges.
TO-92
TO-92
no heat sink
small heat fin
θ
JA
T
J −TA
θ
JA
T
J −TA
(˚C/W)
(˚C)
(˚C/W)
(˚C)
Still air
150
TBD
TBD
TBD
Moving air
TBD
TBD
TBD
TBD
FIGURE 3. Temperature Rise of LM19 Due to
Self-Heating and Thermal Resistance (
θ
JA)
20004015
FIGURE 4. LM19 No Decoupling Required for
Capacitive Loads Less than 300 pF.
www.national.com
5


Аналогичный номер детали - LM19CIZ

производительномер деталидатащиподробное описание детали
logo
National Semiconductor ...
LM19CIZ NSC-LM19CIZ Datasheet
241Kb / 10P
   2.4V, 10關A, TO-92 Temperature Sensor
LM19CIZ NSC-LM19CIZ Datasheet
272Kb / 10P
   2.4V, 10關A, TO-92 Temperature Sensor
logo
Texas Instruments
LM19CIZ/LFT4 TI1-LM19CIZ/LFT4 Datasheet
283Kb / 13P
[Old version datasheet]   LM19 2.4V, 10關A, TO-92 Temperature Sensor
LM19CIZ/NOPB TI1-LM19CIZ/NOPB Datasheet
283Kb / 13P
[Old version datasheet]   LM19 2.4V, 10關A, TO-92 Temperature Sensor
More results

Аналогичное описание - LM19CIZ

производительномер деталидатащиподробное описание детали
logo
Texas Instruments
LMT89DCKT TI-LMT89DCKT Datasheet
898Kb / 13P
[Old version datasheet]   LMT89 2.4V, 10UA, SC70, Temperature Sensor
logo
National Semiconductor ...
LM19 NSC-LM19_10 Datasheet
272Kb / 10P
   2.4V, 10關A, TO-92 Temperature Sensor
LM19 NSC-LM19_07 Datasheet
241Kb / 10P
   2.4V, 10關A, TO-92 Temperature Sensor
LM20EP NSC-LM20EP Datasheet
250Kb / 9P
   Enhanced Plastic 2.4V, 10uA, SC70, micro SMD Temperature Sensor
logo
Texas Instruments
LM19 TI-LM19_15 Datasheet
268Kb / 14P
[Old version datasheet]   LM19 2.4V, 10關A, TO-92 Temperature Sensor
LM19 TI1-LM19 Datasheet
283Kb / 13P
[Old version datasheet]   LM19 2.4V, 10關A, TO-92 Temperature Sensor
logo
STMicroelectronics
STLM20 STMICROELECTRONICS-STLM20_07 Datasheet
156Kb / 16P
   Ultra-low current 2.4V precision analog temperature sensor
logo
Texas Instruments
LMT89 TI-LMT89 Datasheet
920Kb / 13P
[Old version datasheet]   LMT89 2.4V, 10 A, SC70, Temperature Sensor
logo
National Semiconductor ...
LM60 NSC-LM60_05 Datasheet
637Kb / 11P
   2.7V, SOT-23 or TO-92 Temperature Sensor
LM60 NSC-LM60 Datasheet
221Kb / 9P
   2.7V, SOT-23 or TO-92 Temperature Sensor
More results


Html Pages

1 2 3 4 5 6 7 8


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com