SNIS118E – JULY 1999 – REVISED SEPTEMBER 2013
ELECTRICAL CHARACTERISTICS (continued)
Unless otherwise noted, these specifications apply for V
S
= +5 V
DC
and I
LOAD
= +0.5
μA,
in the circuit of
Boldface
limits apply for the specified T
A
= T
J
= T
MIN
to T
MAX
; all other limits T
A
= T
J
= +25°C, unless otherwise noted.
Parameter
Quiescent Current
(5)
Conditions
Typical
+4.5V
≤
V
S
≤
+10V
+4.5V
≤
V
S
≤
+10V
+1.0
T
J
= 125°C, for 1000
hours
±0.08
LM50B
Limit
130
180
2.0
(1)
LM50C/LM50-Q1
Typical
Limit
130
180
2.0
+2.0
±0.08
(1)
Units
(Limit)
μA
(max)
μA
(max)
μA
(max)
μA/°C
°C
Change of Quiescent Current
Temperature Coefficient of Quiescent
Current
Long Term Stability
(6)
(5)
(6)
Quiescent current is defined in the circuit of
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. The majority of the drift will occur in the first 1000 hours at elevated temperatures. The drift after
1000 hours will not continue at the first 1000 hour rate.
TYPICAL CHARACTERISTICS
To generate these curves the LM50/LM50-Q1 was mounted to a printed circuit board as shown in
Thermal Resistance
Junction to Air
Thermal Time Constant
Figure 3.
Thermal Response in Still Air
with Heat Sink (Figure
Figure 4.
Thermal Response in Stirred Oil Bath
with Heat Sink
Figure 5.
Figure 6.
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