LM4041DECT-1.2 [STMICROELECTRONICS]
Precision micropower shunt voltage reference;
| 型号： | LM4041DECT-1.2 |
| 厂家： | 
ST |
| 描述： | Precision micropower shunt voltage reference 光电二极管 |
| 文件： | 总16页 (文件大小：646K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LM4041
Precision micropower shunt voltage reference
Datasheet
-
production data
Description
The LM4041 is a micropower shunt voltage
reference, providing a stable 1.225 V output
voltage, with an initial accuracy of 0.1% @ 25 °C
and a low temperature coefficient. Available in
SOT323-5L and SOT23-3L surface mount
packages, it can be designed in applications
where space saving is a critical issue. The low
operating current is a key advantage for power
restricted designs. In addition, the LM4041 is very
stable and can be used in a broad range of
application conditions.
SOT323-5L
SOT23-3L
Features
• Fixed 1.225 V typical output voltage
• Ultra low operating current: 40 µA at 25 °C
• High precision: +/- 0.1% @ 25 °C (0.2%, 0.5%
and 1% versions are also available)
• Stable when used with capacitive loads
• Industrial (- 40 to+ 85 °C) and Extended (- 40
to +125 °C) temperature range versions
available
• 100 ppm/°C maximum temperature coefficient
• Available in SOT23-3L and SOT323-5L
packages
Applications
• Computers
• Battery chargers
• Switch mode power supply
• Battery operated equipment
• Data acquisition systems
• Energy management
• Instrumentation
February 2014
DocID018817 Rev 4
1/16
This is information on a product in full production.
www.st.com
Contents
LM4041
Contents
1
2
3
4
5
6
7
8
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
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LM4041
Pin configuration
1
Pin configuration
Figure 1. Pin connection (top view)
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$0ꢀꢁꢂꢃꢃYꢄ
627ꢀꢁꢂꢁ/
627ꢁꢀꢁꢂꢃ/
Note:
Below pins must be left floating or connected to Anode pin to improve noise immunity due to
PCB layout.
SOT23-3L: pin 3.
SOT323-5L: pin 2, pin 4 and pin 5.
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16
Maximum ratings
LM4041
2
Maximum ratings
Table 1. Absolute maximum ratings
Parameter
Symbol
Value
Unit
IK
VK
IF
Reverse breakdown current
20
8
mA
V
Maximum cathode voltage
Forward current
10
mA
Power dissipation (1)
SOT23-3L
PD
500
536
mW
SOT323-5L
TSTG
Storage temperature
- 65 to +150
2
°C
kV
V
Human body model (HBM)
Machine model (MM)
ESD
200
Charged device model
1500
260
V
TLEAD
TJ
Lead temperature (soldering) 10 sec
Max junction temperature
°C
°C
+150
1.
P
has been calculated with T
= 25°C and T
= 150 °C.
JMAX
D
AMB
Note:
Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these conditions is not implied.
Table 2. Thermal data
Symbol
Parameter
SOT323-5L
SOT23-3L
Unit
RthJA
RthJC
Thermal resistance junction-ambient
Thermal resistance junction-case
233
90
248
136
°C/W
°C/W
Table 3. Operating conditions
Parameter
Symbol
Value
Unit
IKMIN
Minimum operating current
Maximum operating current
40
µA
IKMAX
12
mA
Industrial
Extended
- 40 to + 85
- 40 to + 125
TOPER
Operating free air temperature range
°C
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LM4041
Electrical characteristics
3
Electrical characteristics
TAMB = 25 °C, unless otherwise specified.
Table 4. Electrical characteristics
Test conditions
Ik = 100 µA
Symbol
Parameter
Min.
Typ.
Max.
Unit
LM4041A, 0.1%
LM4041B, 0.2%
LM4041C, 0.5%
LM4041D, 1%
1.2238
1.2262
Reverse breakdown
voltage
Vk
1.2225 1.225 1.2275
V
1.219
1.213
1.231
1.237
Tamb = 25 °C
25
40
50
Minimum operating
current
Ikmin
µA
(1)
-40 °C < Tamb < Tmax
Average temperature
coefficient (2)
ΔVk/ΔT
Ik = 100 µA
± 36
0.4
4
± 100 ppm/°C
Ikmin < Ik < 1 mA
1
(1)
(1)
Reverse breakdown
- 40 °C < Tamb < Tmax
1.5
mV
8
ΔVk/ΔIk voltage change with
1 mA < Ik < 12 mA
operating current range
- 40 °C < Tamb < Tmax
10
Rka
Kvh
en
Static impedance
ΔIk = 100 µA to 1 mA
0.4
120
60
1
W
Long term stability
Ik = 100 µA, t = 1000 hrs
ppm
Wide band noise
Ik = 100 µA, 10 Hz < f < 10 kHz
µVRMS
1.
T
= 85 °C for LM4041xI (industrial version) and T
= 125 °C for LM4041xE (extended version).
max
max
6
2. The average temperature coefficient is defined as: 10 x {max(
Δ
V )
/
[Vk@25°C x (
T
-T )]} [ppm/°C].
max min
k
Note:
Limits are 100% production tested at 25 °C. Limits over temperature are guaranteed
through correlation and by design.
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16
Typical performance characteristics
LM4041
4
Typical performance characteristics
The following plots are referred to the typical application circuit and, unless otherwise noted,
at TA = 25 °C.
Figure 2. Vk change vs. temperature
Figure 3. Minimum current for regulation
AM09372v1
AM09371v1
1240
1235
1230
1225
1220
1215
1210
70
50
30
10
-40
-20
0
25
50
85
105
125
TEMP (°C)
0.4
0.8
1.2
VK (V)
Figure 4. Output impedance vs. frequency
Figure 5. Minimum current for regulation vs.
temperature
AM09373v1
1000
AM09374v1
60
50
40
30
20
10
0
Theoric C=1µF
100
C = 0
10
I = 150µA
CL=1µF
1
I = 1mA
-40
-20
0
25
50
85
105
125
0.1
TEMP (°C)
100
1000
10000
100000
1000000
Frequency (Hz)
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LM4041
Typical performance characteristics
Figure 6. Startup characteristics
Figure 7. Startup measure circuit
R
18 K
IK
VK
Pulse
Generator
f=100 KHz
AM09375v1
Figure 8. Wideband noise voltage
AM09376v1
1200
1000
800
600
400
200
0
10
100
1000
10000
100000
Frequency (Hz)
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16
Package mechanical data
LM4041
5
Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK
specifications, grade definitions, and product status are available at: www.st.com.
ECOPACK is an ST trademark.
Figure 9. SOT23-3L dimensions
7110469_B
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LM4041
Package mechanical data
Table 5. SOT23-3L mechanical data
mm.
Dim.
Min.
Typ.
Max.
A
A1
A2
b
0.89
0.01
0.88
0.30
0.08
2.80
2.10
1.20
1.12
0.10
1.02
0.50
0.20
3.04
2.64
1.40
0.95
2.90
c
D
E
E1
e
1.30
0.95
1.90
0.50
0.54
e1
L
0.40
0°
0.60
8°
L1
k
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Package mechanical data
LM4041
Figure 10. SOT323-5L dimensions
7091413/E
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LM4041
Package mechanical data
Table 6. SOT323-5L mechanical data
mm.
Dim.
Min.
Typ.
Max.
A
A1
A2
b
0.80
0
1.10
0.10
1
0.80
0.15
0.10
1.80
1.80
1.15
0.90
0.30
0.22
2.20
2.40
1.35
c
D
2
E
2.10
1.25
0.65
1.30
0.36
E1
e
e1
L
0.26
0°
0.46
8°
<
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16
Packaging mechanical data
LM4041
6
Packaging mechanical data
Figure 11. Tape and reel SOT23-3L and SOT323-5L mechanical drawing
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LM4041
Packaging mechanical data
Table 7. Tape and reel SOT23-3L mechanical data
mm
Dim.
Min.
Typ.
Max.
A
C
180
12.8
20.2
60
13.0
13.2
D
N
T
14.4
3.33
3.27
1.47
4.1
Ao
Bo
Ko
Po
P
3.13
3.07
1.27
3.9
3.23
3.17
1.37
4.0
3.9
4.0
4.1
Table 8. SOT323-5L mechanical data
mm.
Dim.
Min.
Typ.
Max.
A
C
175
12.8
20.2
59.5
180
13
185
13.2
D
N
60
60.5
14.4
T
Ao
Bo
Ko
Po
P
2.25
2.7
1.2
4
3.9
3.8
4.1
4.2
4
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Order codes
LM4041
7
Order codes
Table 9. Order codes
Order codes
Precision
Packages
Operating temperature range
Marking
LM4041AICT-1.2
LM4041BICT-1.2
LM4041CICT-1.2
LM4041DICT-1.2
LM4041AILT-1.2
LM4041BILT-1.2
LM4041CILT-1.2
LM4041DILT-1.2
LM4041AECT-1.2
LM4041BECT-1.2
LM4041CECT-1.2
LM4041DECT-1.2
LM4041AELT-1.2
LM4041BELT-1.2
LM4041CELT-1.2
LM4041DELT-1.2
0.1%
0.2%
0.5%
1%
L2
L2
Industrial
SOT323-5L
- 40 to + 85 °C
L25
L26
L23
L24
L25
L26
E2
0.1%
0.2%
0.5%
1%
Industrial
SOT23-3L
SOT323-5L
SOT23-3L
- 40 to + 85 °C
0.1%
0.2%
0.5%
1%
E2
Extended
- 40 to + 125 °C
E25
E26
E23
E24
E25
E26
0.1%
0.2%
0.5%
1%
Extended
- 40 to + 125 °C
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LM4041
Revision history
8
Revision history
Table 10. Document revision history
Changes
Date
Revision
09-May-2011
05-Dec-2011
25-Jul-2012
1
2
3
Initial release.
Changed maturity code and updated Table 9 on page 14.
Added: marking order codes Table 9 on page 14.
Part number LM4041xx changed to LM4041.
Updated Table 1: Absolute maximum ratings, Section 1: Pin configuration and
Section 5: Package mechanical data.
18-Feb-2014
4
Added Section 6: Packaging mechanical data.
Minor text changes.
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LM4041
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