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LM234 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 3-Terminal Adjustable Current Sources - National Semiconductor

भाग संख्या LM234
समारोह 3-Terminal Adjustable Current Sources
मैन्युफैक्चरर्स National Semiconductor 
लोगो National Semiconductor लोगो 
पूर्व दर्शन
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<?=LM234?> डेटा पत्रक पीडीएफ

LM234 pdf
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V+ to VForward Voltage
LM134/LM234/LM334
LM234-3/LM234-6
V+ to VReverse Voltage
R Pin to VVoltage
Set Current
Power Dissipation
ESD Susceptibility (Note 6)
Operating Temperature Range (Note 5)
LM134
40V
30V
20V
5V
10 mA
400 mW
2000V
−55˚C to +125˚C
LM234/LM234-3/LM234-6
−25˚C to +100˚C
LM334
0˚C to +70˚C
Soldering Information
TO-92 Package (10 sec.)
260˚C
TO-46 Package (10 sec.)
300˚C
SO Package
Vapor Phase (60 sec.)
215˚C
Infrared (15 sec.)
220˚C
See AN-450 “Surface Mounting Methods and Their Effect on
Product Reliability” (Appendix D) for other methods of sol-
dering surface mount devices.
Electrical Characteristics (Note 2)
Parameter
Set Current Error, V+=2.5V,
(Note 3)
Ratio of Set Current to
Bias Current
Minimum Operating Voltage
Average Change in Set Current
with Input Voltage
Temperature Dependence of
Set Current (Note 4)
Effective Shunt Capacitance
Conditions
10µA ISET 1mA
1mA < ISET 5mA
2µA ISET < 10µA
100µA ISET 1mA
1mA ISET 5mA
2 µAISET100 µA
2µA ISET 100µA
100µA < ISET
1mA
1mA < ISET 5mA
2µA ISET 1mA
1.5 V+ 5V
5V V+ 40V
1mA < ISET 5mA
1.5V V 5V
5V V 40V
25µA ISET 1mA
LM134/LM234
Min Typ Max
3
5
8
14 18 23
14
18 23
0.8
0.9
1.0
0.02 0.05
0.01 0.03
0.03
0.02
0.96T T 1.04T
LM334
Min Typ Max
6
8
12
14 18 26
14
18 26
0.8
0.9
1.0
0.02 0.1
0.01 0.05
0.03
0.02
0.96T T 1.04T
15 15
Units
%
%
%
V
V
V
%/V
%/V
%/V
%/V
pF
Note 1: .“Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits.
Note 2: Unless otherwise specified, tests are performed at Tj = 25˚C with pulse testing so that junction temperature does not change during test
Note 3: Set current is the current flowing into the V+ pin. For the Basic 2-Terminal Current Source circuit shown on the first page of this data sheet. ISET is determined
by the following formula: ISET = 67.7 mV/RSET (@ 25˚C). Set current error is expressed as a percent deviation from this amount. ISET increases at 0.336%/˚C @ Tj
= 25˚C (227 µV/˚C).
Note 4: 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).
Note 5: For elevated temperature operation, TJ max is:
LM134
LM234
LM334
150˚C
125˚C
100˚C
Thermal Resistance
θja (Junction to Ambient)
θjc (Junction to Case)
TO-92
180˚C/W (0.4" leads)
160˚C/W (0.125" leads)
N/A
TO-46
440˚C/W
32˚C/W
SO-8
165˚C/W
80˚C/W
Note 6: Human body model, 100pF discharged through a 1.5kresistor.
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