LM137/LM337
Thermal Regulation
(Continued)
In
a typical LM137’s output drifts only 3 mV (or
0.03% of V
OUT
= −10V) when a 10W pulse is applied for
10 ms. This performance is thus well inside the specification
limit of 0.02%/W x 10W = 0.2% max. When the 10W pulse is
ended, the thermal regulation again shows a 3 mV step at
the LM137 chip cools off. Note that the load regulation error
of about 8 mV (0.08%) is additional to the thermal regulation
error. In
when the 10W pulse is applied for 100 ms,
the output drifts only slightly beyond the drift in the first
10 ms, and the thermal error stays well within 0.1% (10 mV).
00906704
LM137, V
OUT
= −10V
V
IN
− V
OUT
= −40V
I
L
= 0A
→
0.25A
→
0A
Horizontal sensitivity, 20 ms/div
FIGURE 2.
Connection Diagrams
TO-3
Metal Can Package
TO-39
Metal Can Package
00906706
Case Is Input
Note 5:
See STD Mil DWG 5962P99517 for Radiation Tolerant Devices
00906705
Case is Input
Bottom View
Order Number LM137K/883
LM137KPQML and LM137KPQMLV(Note
See NS Package Number K02C
Order Number LM337K STEEL
See NS Package Number K02A
Bottom View
Order Number LM137H, LM137H/883 or LM337H
LM137HPQML and LM137HPQMLV(Note
See NS Package Number H03A
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