LM334ADT 데이터 시트보기 (PDF) - STMicroelectronics

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LM334ADT

Three terminal adjustable current sources

STMicroelectronics 

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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