LM234DT STMicroelectronics, LM234DT Datasheet - Page 3

• Manufacturer Part Number: LM234DT
• Description: IC CURRENT SOURCE 3% 8SOIC
• Manufacturer: STMicroelectronics

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

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