Datasheet

LM134-LM234-LM334 Electrical characteristics
3/16
3 Electrical characteristics
T
j
= +25°C with pulse testing so that junction temperature does not change during testing
(unless otherwise specified)
Table 2. Electrical characteristics
Parameter
LM134 - LM234 LM334
Unit
Min. Typ. Max. Min. Typ. Max.
Set current error (V
+
= +2.5V) -
(1)
10µA ≤ I
set
≤ 1mA
1mA ≤ I
set
≤ 5mA
2µA ≤ I
set
≤ 10µA
3
5
8
6
8
12
%
Ratio of set current to V
-
current
10µA ≤ I
set
≤ 1mA
1mA ≤ I
set
≤ 5mA
2µA ≤ I
set
≤ 10µA
14 18
14
14
23 14 18
14
14
26
Minimum operating voltage
2µA ≤ I
set
≤ 100µA
100µA ≤ I
set
≤ 1mA
1mA ≤ I
set
≤ 5mA
0.8
0.9
1
0.8
0.9
1
V
Average change in set current with input voltage
2µA ≤ I
set
≤ 1mA
+1.5V ≤ V
+
≤ +5V
+5V ≤ V
+
≤ +40V
1mA ≤ I
set
≤ 5mA
+1.5V ≤ V
+
≤ +5V
+5V ≤ V
+
≤ +40V
0.02
0.01
0.03
0.02
0.05
0.03
0.02
0.01
0.03
0.02
0.1
0.05 % / V
Temperature dependence of set current -
(2)
25µA ≤ I
set
≤ 1mA 0.96 T T 1.04 T 0.96 T T 1.04 T
Effective shunt capacitance 15 15 pF
1. The set current is the current flowing into the V+ pin. It is determined by the following formula:
I
set
= 67.7mV/R
set
(T
j
= +25°C)
The set current error is expressed as a percent deviation from this amount.
2. I
set
is directly proportional to absolute temperature (°K). I
set
at any temperature can be calculated from
I
set
= I
o
(T/T
o
)
where I
o
is I
set
measured at To (°K).