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Электронный компонент: LM336Z

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1/10
s
LOW TEMPERATURE COEFFICIENT
s
WIDE OPERATING CURRENT OF 400A
TO 10mA
s
0.2
DYNAMIC IMPEDANCE
s
GUARANTEED TEMPERATURE STABILITY
s
FAST TURN-ON
DESCRIPTION
The LM236 and LM336 are precision 2.5V regula-
tor diodes. These voltage reference monolithic ICs
operate like 2.5V zener diodes with a low temper-
ature coefficient and a dynamic impedance of
0.2
. A third pin enables adjusting the reference
voltage and the temperature coefficient.
ORDER CODE
Z = TO92 Plastic package - also available in Bulk (Z), Tape & Reel (ZT)
and Ammo Pack (AP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
PIN CONNECTIONS (top view)
Part Number
Temperature
Range
Package
Z
D
LM236
-25C, +85C
LM336,B
0C, +70C
Z
TO92
(Plastic Package)
D
SO8
(Plastic Micropackage)
ADJ
v+
v-
8
7
6
5
1
2
3
4
V+
NC
ADJ
NC
NC
V+
NC
NC
TO92
(Top view)
SO8
(Top view)
1- NC
2- NC
3- NC
4- V-
5- ADJ
6- NC
7- NC
8- V+
2-
LM236
LM336,B
2.5V VOLTAGE REFERENCES
May 2003
LM236 - LM336,B
2/10
SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
Symbol
Parameter
LM236
LM336,B
Unit
I
R
I
F
Current
Reverse
Forward
15
10
mA
Toper
Operating Free-air Temperature Range
-25 to +85
0 to +70
C
T
Stg
Storage Temperature Range
-65 to +150
C
Symbol
Parameter
LM236
LM336,B
Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
V
R
Reference Breakdown Voltage
T
amb
= +25C, I
R
= 1mA
LM236, LM336
LM336B
2.44
2.49
2.54
2.39
2.44
2.49
2.49
2.59
2.54
V
V
R
Reverse Breakdown Voltage Change with Current
400A
I
R
10mA
T
amb
= +25C
T
min.
T
amb
T
max.
2.6
3
6
10
2.6
3
10
12
mV
Z
D
Reverse Dynamic Impedance (I
R
= 1mA)
T
amb
= +25C
T
min.
T
amb
T
max.
0.2
0.4
0.6
1
0.2
0.4
1
1.4
K
VT
Temperature Stability (V
R
= 2.49V, I
R
= 1mA)
3.5
9
1.8
6
mV
K
VH
Long Term Stability (T
amb
= +25C 0.1C, I
R
= 1mA)
20
20
ppm
LM236 - LM336,B
3/10
LM236 - LM336,B
4/10
APPLICATION HINTS
The LM236, LM336 voltage references are easier
to use than zener diodes. Their low impedance
and wide current range facilitate biasing in any cir-
cuits. Besides, the breakdown voltage or the tem-
perature coefficient can be adjusted so as to opti-
mize the performance of the circuit.
Figure 1 represents a LM336 with a 10k
potenti-
ometer to adjust the reverse breakdown voltage
which can be adjusted without altering the temper-
ature coefficient of the circuit. The adjustment
range is generally sufficient to adjust the initial tol-
erance of the circuit and the inaccuracy of the am-
plifier circuit.
To obtain a lower temperature coefficient two di-
odes can be connected in series as indicated in
Figure 2.
When the circuit is adjusted to 2.49V the tempera-
ture coefficient is minimized.
For a correct temperature coefficient, the diodes
should be at the same ambient temperature as the
LM336. The value of R1 is not critical (2-20k
).
LM236 - LM336,B
5/10
LM236 - LM336,B
6/10
LM236 - LM336,B
7/10
LM236 - LM336,B
8/10
PACKAGE MECHANICAL DATA
DIM.
mm.
inch
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
A
1.35
1.75
0.053
0.069
A1
0.10
0.25
0.04
0.010
A2
1.10
1.65
0.043
0.065
B
0.33
0.51
0.013
0.020
C
0.19
0.25
0.007
0.010
D
4.80
5.00
0.189
0.197
E
3.80
4.00
0.150
0.157
e
1.27
0.050
H
5.80
6.20
0.228
0.244
h
0.25
0.50
0.010
0.020
L
0.40
1.27
0.016
0.050
k
(max.)
ddd
0.1
0.04
SO-8 MECHANICAL DATA
0016023/C
8
LM236 - LM336,B
9/10
PACKAGE MECHANICAL DATA - TO92 TAPE AMMO PACK & TO92 TAPE & REEL
Packing information are available at: http://www.st.com/stonline/prodpres/packages/stdlin.htm
DIM.
mm.
inches
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
AL
5.0
0.197
A
5.0
0.197
T
4.0
0.157
d
0.45
0.018
I1
2.5
0.098
P
11.7
12.7
13.7
0.461
0.500
0.539
PO
12.4
12.7
13
0.488
0.500
0.512
P2
5.95
6.35
6.75
0.234
0.250
0.266
F1/F2
2.4
2.5
2.8
0.094
0.098
0.110
D
h
-1
0
1
-0.039
0
0.039
D
P
-1
0
1
-0.039
0
0.039
W
17.5
18.0
19.0
0.689
0.709
0.748
W0
5.7
6
6.3
0.224
0.236
0.248
W1
8.5
9
9.75
0.335
0.354
0.384
W2
0.5
0.020
H
20
0.787
H0
15.5
16
16.5
0.610
0.630
0.650
H1
25
0.984
DO
3.8
4.0
4.2
0.150
0.157
0.165
L1
11
0.433
TO-92 MECHANICAL DATA
LM236 - LM336,B
10/10
PACKAGE MECHANICAL DATA - TO92 BULK
Packing information are available at: http://www.st.com/stonline/prodpres/packages/stdlin.htm
DIM.
mm.
mils
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
A
4.32
4.95
170.1
194.9
b
0.36
0.51
14.2
20.1
D
4.45
4.95
175.2
194.9
E
3.30
3.94
129.9
155.1
e
2.41
2.67
94.9
105.1
e1
1.14
1.40
44.9
55.1
L
12.7
15.49
500.0
609.8
R
2.16
2.41
85.0
94.9
S1
0.92
1.52
36.2
59.8
W
0.41
0.56
16.1
22.0
TO-92 MECHANICA DATA
0102782/C
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