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TI-LM336-2.5-MIL.pdf
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TI-LM336-2.5-MIL.pdf
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SLVS063E − NOVEMBER 1988 − REVISED OCTOBER 2003
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D Low Temperature Coefficient
D Wide Operating Current . . . 400 µA
to 10 mA
D 0.27-Ω Dynamic Impedance
D ±1% Tolerance Available
D Specified Temperature Stability
D Easily Trimmed for Minimum Temperature
Drift
D Fast Turnon
description/ordering information
The LM236-2.5, LM336-2.5, and LM336B-2.5
integrated circuits are precision 2.5-V shunt
regulator diodes. These reference circuits
operate as low-temperature-coefficient 2.5-V
Zener diodes with a 0.2-Ω dynamic impedance. A
third terminal provided on the circuit allows the
reference voltage and temperature coefficient to
be trimmed easily.
The series is useful as precision 2.5-V low-voltage references (V
Z
) for digital voltmeters, power supplies, or
operational-amplifier circuitry. The 2.5-V voltage reference makes it convenient to obtain a stable reference from
5-V logic supplies. Devices in this series operate as shunt regulators, and can be used as either positive or
negative voltage references.
The LM236-2.5 is characterized for operation from −25°C to 85°C. The LM336-2.5 and LM336B-2.5 are
characterized for operation from 0°C to 70°C.
ORDERING INFORMATION
T
A
PACKAGE
†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
Tube of 75 LM336D-2-5
336-25
SOIC (D)
Reel of 2500 LM336DR-2-5
336-25
SOIC (D)
Tube of 75 LM336BD-2-5
336B25
0°C to 70°C
Reel of 2500 LM336BDR−2-5
336B25
0°C to 70°C
Bulk of 1000 LM336LP-2-5
336-25
TO-226 / TO-92 (LP)
Reel of 2000 LM336LPR-2-5
336-25
TO-226 / TO-92 (LP)
Bulk of 1000 LM336BLP-2-5
336B25
Reel of 2000 LM336BLPR-2-5
336B25
−25°C to 85°C
SOIC (D)
Tube of 75 LM236D-2-5
236-25
−25
°
C to 85
°
C
SOIC (D)
Reel of 2500 LM236DR-2-5
236-25
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright 2003, Texas Instruments Incorporated
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1
2
3
4
8
7
6
5
NC
NC
NC
ANODE
CATHODE
NC
NC
ADJ
D PACKAGE
(TOP VIEW)
LM336-2.5, LM336B-2.5 . . . LP PACKAGE
(TOP VIEW)
NC − No internal connection
ANODE
CATHODE
ADJ
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SLVS063E − NOVEMBER 1988 − REVISED OCTOBER 2003
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
symbol
CATHODEANODE
ADJ
schematic diagram
CATHODE
Q11
6.6 kΩ
24
kΩ
24
kΩ
Q14
Q8
Q7
Q2
20 pF
10 kΩ
30 pF
Q10
Q3
Q1
Q5
Q4
Q6
Q9
Q12
Q13
500 Ω
30 kΩ
6.6 kΩ
720 Ω
ADJ
ANODE
NOTE A: All component values are nominal.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Reverse current, I
R
20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forward current, I
F
10 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θ
JA
(see Notes 1 and 2): D package 97°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . .
LP package 140°C/W. . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature, T
J
150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
−65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. Maximum power dissipation is a function of T
J
(max),
θ
JA
, and T
A
. The maximum allowable power dissipation at any allowable
ambient temperature is P
D
= (T
J
(max) − T
A
)/
θ
JA
. Operating at the absolute maximum T
J
of 150°C can impact reliability.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions
MIN MAX
UNIT
T
A
Operating free-air temperature
LM236-2.5 −25 85
°C
T
A
Operating free-air temperature
LM336-2.5, LM336B-2.5 0 70
°
C
SLVS063E − NOVEMBER 1988 − REVISED OCTOBER 2003
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
T
A
†
LM236-2.5 LM336-2.5
UNIT
PARAMETER
TEST CONDITIONS
T
A
†
MIN TYP MAX MIN TYP MAX
UNIT
V
Z
Reference voltage
I
Z
= 1 mA
LM236, LM336
25°C
2.44 2.49 2.54 2.39 2.49 2.59
V
V
Z
Reference voltage I
Z
= 1 mA
LM336B
25°C
2.44 2.49 2.54
V
∆V
Z(∆T)
Change in reference
voltage with
temperature
V
Z
adjusted to 2.490 V,
I
Z
= 1 mA
Full range 3.5 9 1.8 6 mV
∆V
Z( I)
Change in reference
I
Z
= 400 A to 10 mA
25°C 2.6 6 2.6 10
mV
∆V
Z(∆I)
Change in reference
voltage with current
I
Z
= 400 µA to 10 mA
Full range 3 10 3 12
mV
∆V
Z(∆t)
Long-term change
in reference voltage
I
Z
= 1 mA 25°C 20 20 ppm/khr
z
z
Reference
I
Z
= 1 mA,
f = 1 kHz
25°C 0.2 0.6 0.2 1
W
z
z
Reference
impedance
I
Z
= 1 mA,
f = 1 kHz
Full range 0.4 1 0.4 1.4
W
†
Full range is −25°C to 85°C for the LM236-2.5 and 0°C to 70°C for the LM336-2.5 and LM336B-2.5.
SLVS063E − NOVEMBER 1988 − REVISED OCTOBER 2003
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 1
∆V − Change in Reference Voltage − mV
Z
1.5
1
0.5
0
0246
2
CHANGE IN REFERENCE VOLTAGE
vs
REFERENCE CURRENT
2.5
810
I
Z
− Reference Current − mA
T
A
= 25°C
Figure 2
150
100
50
10 100 1 k
200
f − Frequency − Hz
NOISE VOLTAGE
vs
FREQUENCY
250
10 k 100 k
I
Z
= 1 mA
T
A
= 25°C
− Noise Voltage −V
n
nV/ Hz
0.01 0.1 1
f − Frequency − kHz
10 100
REFERENCE IMPEDANCE
vs
FREQUENCY
10
1
0.1
100
I
Z
= 1 mA
T
A
= −55°C to 125°C
Ωz
z
− Reference Impedance −
Figure 3
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