LM19 2.4V, 10渭A, TO-92 Temperature Sensor
October 2007
LM19
2.4V, 10渭A, TO-92 Temperature Sensor
General Description
The LM19 is a precision analog output CMOS integrated-cir-
cuit temperature sensor that operates over a 鈭?5擄C to +130擄
C temperature range. The power supply operating range is
+2.4 V to +5.5 V. The transfer function of LM19 is predomi-
nately linear, yet has a slight predictable parabolic curvature.
The accuracy of the LM19 when specified to a parabolic
transfer function is 鹵2.5擄C at an ambient temperature of +30擄
C. The temperature error increases linearly and reaches a
maximum of 鹵3.8擄C at the temperature range extremes. The
temperature range is affected by the power supply voltage. At
a power supply voltage of 2.7 V to 5.5 V the temperature
range extremes are +130擄C and 鈭?5擄C. Decreasing the pow-
er supply voltage to 2.4 V changes the negative extreme to
鈭?0擄C, while the positive remains at +130擄C.
The LM19's quiescent current is less than 10
渭A.
Therefore,
self-heating is less than 0.02擄C in still air. Shutdown capability
for the LM19 is intrinsic because its inherent low power con-
sumption allows it to be powered directly from the output of
many logic gates or does not necessitate shutdown at all.
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
FAX Machines
Printers
HVAC
Disk Drives
Appliances
Features
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
Rated for full 鈭?5擄C to +130擄C range
Available in a TO-92 package
Predictable curvature error
Suitable for remote applications
UL Recognized Component
Key Specifications
鈻犫€?/div>
Accuracy at +30擄C
鈻犫€?/div>
Accuracy at +130擄C & 鈭?5擄C
鈻犫€?/div>
Power Supply Voltage Range
鈻犫€?/div>
Current Drain
鈻犫€?/div>
Nonlinearity
鈻犫€?/div>
Output Impedance
鈻犫€?/div>
Load Regulation
鈥?/div>
鈥?/div>
0 渭A
< I
L
< +16 渭A
鹵2.5 擄C (max)
鹵3.5 to 鹵3.8 擄C (max)
+2.4V to +5.5V
10 渭A
(max)
鹵0.4 % (typ)
160 惟 (max)
鈭?.5 mV (max)
Applications
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
Cellular Phones
Computers
Power Supply Modules
Battery Management
Typical Application
Output Voltage vs Temperature
20004002
V
O
= (鈭?.88脳10
鈭?
脳T
2
) + (鈭?.15脳10
鈭?
脳T) + 1.8639
or
20004024
where:
T is temperature, and V
O
is the measured output voltage of the LM19.
FIGURE 1. Full-Range Celsius (Centigrade) Temperature Sensor (鈭?5擄C to +130擄C)
Operating from a Single Li-Ion Battery Cell
漏 2007 National Semiconductor Corporation
200040
www.national.com
LM19_07相關(guān)型號PDF文件下載
-
型號
版本
描述
廠商
下載
-
英文版
2.4V 10µA TO-92 Temperature Sensor
NATIONAL
-
英文版
Seoul Semiconductor [BLUE OVAL LAMP LED]
SEOUL
-
英文版
LOWPOWER DUAL VOLTAGE COMPARATORS
-
英文版
DUAL DIFFERENTIAL COMPARATORS
TI
-
英文版
Low Power Low Offset Voltage Dual Comparators
NSC
-
英文版
Low power dual voltage comparator
PHILIPS
-
英文版
DUAL DIFFERENTIAL COMPARATORS
-
英文版
Low Power Low Offset Voltage Dual Comparators
-
英文版
LOWPOWER DUAL VOLTAGE COMPARATORS
STMicro
-
英文版
LM194/LM394 Supermatch Pair
NSC
-
英文版
Supermatch Pair
-
英文版
Ultra Reliable Power Transistors
NSC
-
英文版
Ultra Reliable Power Transistors
-
英文版
National Semiconductor [LM196/LM396 10 Amp Adjustable Volta...
NSC
-
英文版
Precision Reference
NSC
-
英文版
Precision Reference
LINER
-
英文版
Precision Reference
-
英文版
Precision Reference
Linear
-
英文版
Precision Reference
Linear
-
英文版
National Semiconductor [LM1921 1 Amp Industrial Switch]
NSC
1
2
3
4
5
6
7
8
9
10
