LM234ZT View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
LM234ZT Datasheet PDF : 16 Pages
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LM134-LM234-LM334
3
Electrical characteristics
Electrical characteristics
Tj = +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 ≤ Iset ≤ 1mA
1mA ≤ Iset ≤ 5mA
2µA ≤ Iset ≤ 10µA
Ratio of set current to V- current
10µA ≤ Iset ≤ 1mA
1mA ≤ Iset ≤ 5mA
2µA ≤ Iset ≤ 10µA
Minimum operating voltage
2µA ≤ Iset ≤ 100µA
100µA ≤ Iset ≤ 1mA
1mA ≤ Iset ≤ 5mA
Average change in set current with input voltage
2µA ≤ Iset ≤ 1mA
+1.5V ≤ V+ ≤ +5V
+5V ≤ V+ ≤ +40V
1mA ≤ Iset ≤ 5mA
+1.5V ≤ V+ ≤ +5V
+5V ≤ V+ ≤ +40V
Temperature dependence of set current - (2)
25µA ≤ Iset ≤ 1mA
Effective shunt capacitance
3
6
%
5
8
8
12
14
18
23
14
18
26
14
14
14
14
0.8
0.8
V
0.9
0.9
1
1
0.02 0.05
0.01 0.03
0.03
0.02
0.02 0.1
0.01 0.05 % / V
0.03
0.02
0.96 T T 1.04 T 0.96 T T 1.04 T
15
15
pF
1. The set current is the current flowing into the V+ pin. It is determined by the following formula:
Iset = 67.7mV/Rset (Tj = +25°C)
The set current error is expressed as a percent deviation from this amount.
2. Iset is directly proportional to absolute temperature (°K). Iset at any temperature can be calculated from
Iset = Io (T/To)
where Io is Iset measured at To (°K).
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