LM45B National Semiconductor, LM45B Datasheet - Page 2

• Manufacturer Part Number: LM45B
• Description: SOT-23 Precision Centigrade Temperature Sensors
• Manufacturer: National Semiconductor

Accuracy
(Note 6)
Nonlinearity
(Note 7)
Sensor Gain
(Average Slope)
Load Regulation (Note 8)
Line Regulation
(Note 8)
Quiescent Current
(Note 9)
Change of Quiescent
Current (Note 8)
Temperature Coefficient
of Quiescent Current
Minimum Temperature
for Rated Accuracy
Long Term Stability (Note 10)
Absolute Maximum Ratings
Supply Voltage
Output Voltage
Output Current
Storage Temperature
Lead Temperature
Electrical Characteristics
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 See AN-450 ‘‘Surface Mounting Methods and Their Effect on Product Reliability’’ or the section titled ‘‘Surface Mount’’ found in a current National
Semiconductor Linear Data Book for other methods of soldering surface mount devices
Note 3 Human body model 100 pF discharged through a 1 5 k
Note 4 Thermal resistance of the SOT-23 package is 260 C 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
a
a
SOT Package (Note 2)
50 A in the circuit of Figure 2 These specifications also apply from
5Vdc Boldface limits apply for T
Vapor Phase (60 seconds)
Infrared (15 seconds)
Parameter
Figure 1 I
T
T
T
T
T
0
4 0V
In circuit of
T
a
a
a
A
A
A
MIN s
MIN s
s
J
4 0V
4 0V
4 0V
e
e a
e
e
I
L s
s
T
a
T
T
MAX
MAX
MIN
a
T
T
s
s
s
V
25 C
a
A
A s
A s
S
V
a
a
a
b
Conditions
1 mA
L
S s
a
e
e
Unless otherwise noted these specifications apply for
V
V
V
for 1000 hours
65 C to
T
T
a
S s
S s
S s
MAX
MAX
0
0 6V to
T
10V
12V to
(Note 1)
J
a
a
a
e
10V
10V
10V
a
T
resistor Machine model 200 pF discharged directly into each pin
b
b
MIN
10 mA
150 C
215 C
220 C
0 2V
1 0V
a
to T
25 C
MAX
2
Typical
g
a
ESD Susceptibility (Note 3)
Operating Ratings
Specified Temperature Range
Operating Temperature Range
Supply Voltage Range (
all other limits T
0 12
2 0
Human Body Model
Machine Model
(Note 4)
LM45B LM45C
LM45B LM45C
LM45B
a
2 5 C to T
(Note 5)
a
g
g
a
g
Limit
g
a
g
g
g
160
120
2 0
10 3
0 80
0 8
9 7
1 2
2 0
3 0
3 0
35
2 5
A
MAX
e
T
Typical
J
in the circuit of Figure 1 for
a
a
g
e a
0 12
V
2 0
S
)
LM45C
25 C unless otherwise noted
a
(Note 1)
V
S
(Note 5)
a
g
e a
g
a
g
Limit
g
a
g
g
g
160
120
2 0
10 3
0 80
0 8
9 7
1 2
3 0
4 0
4 0
35
2 5
5Vdc and I
b
b
20 C to
40 C to
a
4 0V to
T
mV mA (max)
mV C (max)
MIN
mV C (min)
mV V (max)
mV V (max)
(Limit)
C (max)
C (max)
C (max)
C (max)
C (min)
A (max)
A (max)
A (max)
Units
a
a
LOAD
to T
a
A C
2000V
C
100 C
125 C
a
V
TBD
S
MAX
10V
e
e