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参数资料
| 型号： | LM45CIM3X/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 温度/湿度传感器 |
| 英文描述： | LM45 SOT-23 Precision Centigrade Temperature Sensors; Package: SOT-23; No of Pins: 3; Qty per Container: 3000/Reel |
| 中文描述： | ANALOG TEMP SENSOR-VOLTAGE, -.2-1V, 4Cel, RECTANGULAR, SURFACE MOUNT |
| 封装： | SOT-23, 3 PIN |
| 文件页数： | 5/11页 |
| 文件大小： | 652K |
| 代理商： | LM45CIM3X/NOPB |
Absolute Maximum Ratings (Note 1)
Supply Voltage
+12V to 0.2V
Output Voltage
+V
S + 0.6V to
1.0V
Output Current
10 mA
Storage Temperature
65C to +150C
ESD Susceptibility (Note 3):
Human Body Model
Machine Model
2000V
250V
Operating Ratings (Note 1)
Specified Temperature Range
T
MIN to TMAX
LM45B, LM45C
20C to +100C
Operating Temperature Range
LM45B, LM45C
40C to +125C
Supply Voltage Range (+V
S)
+4.0V to +10V
Soldering process must comply with National Semiconduc-
tor’s Reflow Temperature Profile specifications. Refer to
www.national.com/packaging. (Note 2)
Electrical Characteristics
Unless otherwise noted, these specifications apply for +V
fications also apply from +2.5C to T
to T
MAX ; all other limits TA =TJ = +25C, unless otherwise noted.
Parameter
Conditions
LM45B
LM45C
Units
(Limit)
Typical
Limit
Typical
Limit
Accuracy
T
A=+25C
±2.0
±3.0
C (max)
T
A=TMAX
±3.0
±4.0
C (max)
T
A=TMIN
±3.0
±4.0
C (max)
Nonlinearity
T
MIN
≤T
A
≤T
MAX
±0.8
C (max)
Sensor Gain
T
MIN
≤T
A
≤T
MAX
+9.7
mV/C (min)
(Average Slope)
+10.3
mV/C (max)
Load Regulation (Note 8)
0
≤I
L
≤ +1 mA
±35
mV/mA (max)
Line Regulation
+4.0V
≤+V
S
≤+10V
±0.80
mV/V (max)
±1.2
mV/V (max)
Quiescent Current
+4.0V
≤+V
S
≤+10V, +25C
120
A (max)
+4.0V
≤+V
S
≤+10V
160
A (max)
Change of Quiescent
4.0V
≤+V
S
≤10V
2.0
A (max)
Current (Note 9)
Temperature Coefficient
+2.0
A/C
of Quiescent Current
Minimum Temperature
In circuit of
+2.5
C (min)
for Rated Accuracy
L=0
Long Term Stability (Note 10)
T
J=TMAX, for 1000 hours
±0.12
C
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating
the device beyond its rated operating conditions.
Note 2: Reflow temperature profiles are different for lead-free and non-lead-free packages.
Note 3: Human body model, 100 pF discharged through a 1.5 k
resistor. Machine model, 200 pF discharged directly into each pin.
Note 4: Thermal resistance of the SOT-23 package is 260C/W, junction to ambient when attached to a printed circuit board with 2 oz. foil as shown in Figure 3.
Note 5: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 6: Accuracy is defined as the error between the output voltage and 10 mv/C times the device’s case temperature, at specified conditions of voltage, current,
and temperature (expressed in C).
Note 7: Nonlinearity is defined as the deviation of the output-voltage-versus-temperature curve from the best-fit straight line, over the device’s rated temperature
range.
Note 8: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output due to heating effects can be
computed by multiplying the internal dissipation by the thermal resistance.
Note 9: Quiescent current is measured using the circuit of Figure 1.
Note 10: For best long-term stability, any precision circuit will give best results if the unit is aged at a warm temperature, and/or temperature cycled for at least 46
hours before long-term life test begins. This is especially true when a small (Surface-Mount) part is wave-soldered; allow time for stress relaxation to occur.
LM45
www.national.com
3
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