LM234DT STMicroelectronics, LM234DT Datasheet - Page 3
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LM234DT
Manufacturer Part Number
LM234DT
Description
IC CURRENT SOURCE 3% 8SOIC
Manufacturer
STMicroelectronics
Datasheet
1.LM234DT.pdf
(16 pages)
Specifications of LM234DT
Function
Current Source
Accuracy
±3%
Voltage - Input
1 ~ 40 V
Current - Output
10mA
Operating Temperature
-25°C ~ 100°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Full Temp Accuracy
3 C
Supply Voltage (max)
10 V
Supply Voltage (min)
1 V
Maximum Operating Temperature
+ 100 C
Minimum Operating Temperature
- 25 C
Supply Current
10 mA
Ic Output Type
Current
Sensing Accuracy Range
± 3%
Supply Voltage Range
1V To 40V
Sensor Case Style
SOIC
No. Of Pins
8
Forward Voltage
40V
Leaded Process Compatible
Yes
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Sensing Method
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-1549-2
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM234DT
Manufacturer:
STMicroelectronics
Quantity:
42 338
Part Number:
LM234DT
Manufacturer:
ST
Quantity:
20 000
LM134-LM234-LM334
3
Table 2.
1. The set current is the current flowing into the V+ pin. It is determined by the following formula:
2. I
Set current error (V
Ratio of set current to V
Minimum operating voltage
Average change in set current with input voltage
2µA ≤ I
1mA ≤ I
Temperature dependence of set current -
25µA ≤ I
Effective shunt capacitance
10µA ≤ I
1mA ≤ I
2µA ≤ I
10µA ≤ I
1mA ≤ I
2µA ≤ I
2µA ≤ I
100µA ≤ I
1mA ≤ I
+1.5V ≤ V
+5V ≤ V
+1.5V ≤ V
+5V ≤ V
I
The set current error is expressed as a percent deviation from this amount.
I
where I
set
set
set
= 67.7mV/R
is directly proportional to absolute temperature (°K). I
= I
set
set
set
o
set
set
o
set
set
(T/T
+
set
set
≤ 1mA
+
is I
set
set
≤ 5mA
≤ 1mA
≤ +40V
≤ 10µA
≤ 10µA
set
≤ +40V
+
+
≤ 100µA
≤ 5mA
≤ 5mA
≤ 5mA
set
Electrical characteristics
T
(unless otherwise specified)
Electrical characteristics
o
≤ 1mA
≤ 1mA
≤ +5V
≤ +5V
)
j
≤ 1mA
= +25°C with pulse testing so that junction temperature does not change during testing
measured at To (°K).
set
+
(T
= +2.5V) -
j
Parameter
= +25°C)
-
current
(1)
(2)
set
at any temperature can be calculated from
0.96 T
Min.
14
LM134 - LM234
Typ.
0.02
0.01
0.03
0.02
0.8
0.9
18
14
14
15
T
1
1.04 T 0.96 T
Max.
0.05
0.03
23
3
5
8
Min.
14
Electrical characteristics
LM334
Typ.
0.02
0.01
0.03
0.02
0.8
0.9
18
14
14
15
1
T
1.04 T
Max.
0.05
0.1
12
26
6
8
% / V
Unit
pF
%
V
3/16