LM334SMX National Semiconductor, LM334SMX Datasheet - Page 2

• Manufacturer Part Number: LM334SMX
• Description: 3-Terminal Adjustable Current Sources
• Manufacturer: National Semiconductor

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Set Current Error, V
(Note 3)
Ratio of Set Current to
Bias Current
Minimum Operating Voltage
Average Change in Set Current
with Input Voltage
Temperature Dependence of
Set Current (Note 4)
Effective Shunt Capacitance
ja
jc
Electrical Characteristics
Note 1: .“Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits.
Note 2: Unless otherwise specified, tests are performed at T
Note 3: Set current is the current flowing into the V
by the following formula: I
Note 4: I
(˚K).
Note 5: For elevated temperature operation, T
Note 6: Human body model, 100pF discharged through a 1.5k
= 25˚C (227 µV/˚C).
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
V
R Pin to V
Set Current
Power Dissipation
ESD Susceptibility (Note 6)
Operating Temperature Range (Note 5)
Thermal Resistance
(Junction to Ambient)
(Junction to Case)
+
+
LM134/LM234/LM334
LM234-3/LM234-6
LM134
LM134
LM234
LM334
to V
to V
SET
−
−
Forward Voltage
Reverse Voltage
Parameter
−
is directly proportional to absolute temperature (˚K). I
Voltage
+
=2.5V,
SET
150˚C
125˚C
100˚C
= 67.7 mV/R
160˚C/W (0.125" leads)
180˚C/W (0.4" leads)
TO-92
N/A
SET
10µA
1mA
2µA
100µA
1mA
2 µA I
2µA
100µA
1mA
1mA
2µA
1.5
5V
1mA
1.5V
5V
25µA
J
(
@
max is:
+
25˚C). Set current error is expressed as a percent deviation from this amount. I
Conditions
pin. For the Basic 2-Terminal Current Source circuit shown on the first page of this data sheet. I
<
<
V
<
V
V
SET
I
I
I
+
SET
I
SET
<
SET
+
V
(Note 2)
I
I
SET
I
I
I
SET
SET
SET
SET
SET
−55˚C to +125˚C
I
40V
SET
I
SET
40V
5V
100 µA
<
5V
(Note 1)
440˚C/W
j
32˚C/W
100µA
1mA
TO-46
= 25˚C with pulse testing so that junction temperature does not change during test
10µA
5mA
1mA
5mA
5mA
5mA
1mA
1mA
resistor.
SET
400 mW
10 mA
2000V
at any temperature can be calculated from: I
40V
30V
20V
5V
165˚C/W
80˚C/W
0.96T
SO-8
Min
14
2
LM134/LM234
Soldering Information
See AN-450 “Surface Mounting Methods and Their Effect on
Product Reliability” (Appendix D) for other methods of sol-
dering surface mount devices.
LM234/LM234-3/LM234-6
LM334
TO-92 Package (10 sec.)
TO-46 Package (10 sec.)
SO Package
0.02
0.01
0.03
0.02
Typ
Vapor Phase (60 sec.)
Infrared (15 sec.)
0.8
0.9
1.0
18
14
18
15
T
1.04T
Max
0.05
0.03
23
23
3
5
8
SET
0.96T
Min
14
= I
o
(T/T
o
LM334
) where I
SET
0.02
0.01
0.03
0.02
Typ
0.8
0.9
1.0
18
14
18
15
T
increases at 0.336%/˚C
o
is I
−25˚C to +100˚C
1.04T
SET
Max
0.05
0.1
12
26
26
SET
6
8
0˚C to +70˚C
measured at T
is determined
260˚C
300˚C
215˚C
220˚C
Units
%/V
%/V
%/V
%/V
pF
@
%
%
%
V
V
V
T
o
j