LM4040AIX3-4.1+T [MAXIM]
Two Terminal Voltage Reference, 1 Output, 4.096V, BICMOS, PDSO3, SC-70, 3 PIN;
| 型号： | LM4040AIX3-4.1+T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Two Terminal Voltage Reference, 1 Output, 4.096V, BICMOS, PDSO3, SC-70, 3 PIN 信息通信管理 光电二极管 |
| 文件： | 总16页 (文件大小：1530K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
General Description
Benefits and Features
● Ultra-Small 3-Pin SC70 Package
The LM4040 is a precision, two-terminal shunt mode,
bandgap voltage reference available in fixed reverse-
breakdown voltages of 2.048V, 2.500V, 3.000V, 3.3V,
4.096V, and 5.000V. Ideal for space-critical applications,
the LM4040 is offered in the subminiature 3-pin SC70
surface-mount package (1.8mm x 1.8mm), 50% smaller
than comparable devices in SOT23 surface-mount
packages (SOT23 versions are also available).
● 0.1% (max) Initial Accuracy
● 100ppm/°C (max) Temperature Coefficient
Guaranteed Over -40°C to +125°C Temperature
Range
● Wide Operating Current Range: 60μA to 15mA
● Low 28μV
Output Noise (10Hz to 10kHz)
RMS
Laser-trimmed resistors ensure precise initial accuracy.
With a 100ppm/°C temperature coefficient, the device
is offered in four grades of initial accuracy ranging from
0.1% to 1%. The LM4040 has a 60μA to 15mA shunt
current capability with low dynamic impedance, ensuring
stable reverse breakdown voltage accuracy over a wide
range of operating temperatures and currents.
● 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V
Fixed Reverse-Breakdown Voltages
● No Output Capacitors Required
● Tolerates Capacitive Loads
● AEC-Q100 Qualified—LM4040BIM3-2.5/V+T,
LM4040AEM3-3.0/V+T , LM4040AEX3-3.0/V+T,
LM4040CEM3-5.0/V+T
The LM4040 does not require an external stabilizing
capacitor while ensuring stability with any capacitive load.
The LM4040 is guaranteed over the temperature range of
-40°C to +125°C.
For a 1.225V output version, refer to the LM4041 data sheet.
Ordering Information appears at end of data sheet.
Applications
● Portable, Battery-Powered Equipment
● Notebook Computers
● Cell Phones
● Industrial Process Controls
19-1787; Rev 10; 10/17
LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
Absolute Maximum Ratings
Reverse Current (cathode to anode)..................................20mA
Operating Temperature Range
Forward Current (anode to cathode)..................................10mA
LM4040_I_ _ _................................................ -40°C to +85°C
LM4040_E_ _ _............................................ -40°C to +125°C
Storage Temperature Range............................ -65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow).......................................+260°C
Continuous Power Dissipation (T = +70°C)
A
3-Pin SC70 (derate 2.17mW/°C above +70°C)...........174mW
3-Pin SOT23 (derate 4.01mW/°C above +70°C) ........320mW
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 in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics—2.048V
(I = 100μA, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
R
A
MIN
MAX A
PARAMETER
SYMBOL
CONDITIONS
LM4040A (0.1%)
MIN
TYP
2.048
2.048
2.048
2.048
±2.0
±4.0
±10
±20
45
MAX
2.050
2.052
2.058
2.068
±15
UNITS
2.046
2.044
2.038
2.028
LM4040B (0.2%)
LM4040C (0.5%)
LM4040D (1.0%)
Reverse Breakdown Voltage
V
T
= +25°C
A
V
R
R
LM4040A
LM4040B
LM4040C
LM4040D
LM4040A/B/C
LM4040D
±17
Reverse Breakdown Voltage
Tolerance (Note 2)
V
mV
µA
±23
±41
65
Minimum Operating Current
I
RMIN
45
70
I
I
I
I
= 10mA
±20
±15
±15
±15
0.3
R
Average Reverse Voltage
Temperature Coefficient
(Notes 2 and 3)
LM4040A/B/C
±100
±150
∆V /∆T
= 1mA
ppm/°C
R
R
LM4040D
= 100µA
R
LM4040A/B/C
LM4040D
1.0
1.2
8.0
10.0
0.8
0.9
1.1
≤ I ≤ 1mA
RMIN
R
Reverse Breakdown Voltage
Change with Operating
Current Change
0.3
mV
LM4040A/B/C
LM4040D
2.5
1mA ≤ I ≤ 15mA
R
2.5
LM4040A/B
LM4040C
0.3
Reverse Dynamic
Impedance (Note 3)
I
I
= 1mA, f = 120Hz,
R
AC
Z
e
0.3
Ω
R
= 0.1I
R
LM4040D
0.3
Wideband Noise
I
= 100µA, 10Hz ≤ f ≤ 10kHz
28
µV
RMS
N
R
Reverse Breakdown Voltage
Long-Term Stability
∆V
T = 1000h
120
ppm
R
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LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
Electrical Characteristics—2.500V
(I = 100μA, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
R
A
MIN
MAX A
PARAMETER
SYMBOL
CONDITIONS
LM4040A (0.1%)
MIN
TYP
MAX
UNITS
2.4975 2.5000 2.5025
2.4950 2.5000 2.5050
2.4875 2.5000 2.5125
2.4750 2.5000 2.5250
LM4040B (0.2%)
LM4040C (0.5%)
LM4040D (1.0%)
Reverse Breakdown Voltage
V
T
= +25°C
V
R
R
A
LM4040A
LM4040B
LM4040C
LM4040D
LM4040A/B/C
LM4040D
±2.0
±4.0
±10
±20
45
±19
±21
±29
±49
65
Reverse Breakdown Voltage
Tolerance (Note 2)
V
mV
µA
Minimum Operating Current
I
RMIN
45
70
I
I
I
I
= 10mA
±20
±15
±15
±15
0.3
0.4
2.5
2.5
0.3
0.3
0.3
35
R
Average Reverse Voltage
Temperature Coefficient
(Notes 2 and 3)
LM4040A/B/C
±100
±150
∆V /∆T
= 1mA
ppm/°C
R
R
LM4040D
= 100µA
R
LM4040A/B/C
LM4040D
1.0
1.2
8.0
10.0
0.8
0.9
1.1
≤ I ≤ 1mA
RMIN
R
Reverse Breakdown Voltage
Change with Operating
Current Change
mV
LM4040A/B/C
LM4040D
1mA ≤ I ≤ 15mA
R
LM4040A/B
LM4040C
Reverse Dynamic
Impedance (Note 3)
I
I
= 1mA, f = 120Hz,
R
AC
Z
e
Ω
R
= 0.1I
R
LM4040D
Wideband Noise
I
= 100µA, 10Hz ≤ f ≤ 10kHz
µV
RMS
N
R
Reverse Breakdown Voltage
Long-Term Stability
∆V
T = 1000h
120
ppm
R
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LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
Electrical Characteristics—3.000V
(I = 100μA, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
R
A
MIN
MAX A
PARAMETER
SYMBOL
CONDITIONS
LM4040A (0.1%)
MIN
TYP
3.000
3.000
3.000
3.000
±3.0
±6.0
±15
±30
45
MAX
3.003
3.006
3.015
3.030
±22
UNITS
2.997
2.994
2.985
2.970
LM4040B (0.2%)
LM4040C (0.5%)
LM4040D (1.0%)
Reverse Breakdown Voltage
V
T
= +25°C
V
R
R
A
LM4040A
LM4040B
LM4040C
LM4040D
LM4040A/B/C
LM4040D
±26
Reverse Breakdown Voltage
Tolerance (Note 2)
V
mV
µA
±34
±59
67
Minimum Operating Current
I
RMIN
45
70
I
I
I
I
= 10mA
±20
±15
±15
±15
0.3
R
Average Reverse Voltage
Temperature Coefficient
(Notes 2 and 3)
LM4040A/B/C
±100
±150
∆V /∆T
= 1mA
ppm/°C
R
R
LM4040D
= 100µA
R
LM4040A/B/C
LM4040D
1.0
1.2
8.0
10.0
0.8
0.9
1.1
≤ I ≤ 1mA
RMIN
R
Reverse Breakdown Voltage
Change with Operating
Current Change
0.3
mV
LM4040A/B/C
LM4040D
2.5
1mA ≤ I ≤ 15mA
R
2.5
LM4040A/B
LM4040C
0.3
Reverse Dynamic
Impedance (Note 3)
I
I
= 1mA, f = 120Hz,
R
AC
Z
e
0.3
Ω
R
= 0.1I
R
LM4040D
0.3
Wideband Noise
I
= 100µA, 10Hz ≤ f ≤ 10kHz
45
µV
RMS
N
R
Reverse Breakdown Voltage
Long-Term Stability
∆V
T = 1000h
120
ppm
R
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LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
Electrical Characteristics—3.300V
(I = 100μA, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
R
A
MIN
MAX A
PARAMETER
SYMBOL
CONDITIONS
LM4040A (0.1%)
MIN
TYP
MAX
UNITS
3.2967 3.3000 3.3033
3.2934 3.3000 3.3066
3.2835 3.3000 3.3165
3.2670 3.3000 3.3330
LM4040B (0.2%)
LM4040C (0.5%)
LM4040D (1.0%)
Reverse Breakdown Voltage
V
T
= +25°C
V
R
R
A
LM4040A
LM4040B
LM4040C
LM4040D
LM4040A/B/C
LM4040D
±3.0
±6.0
±15
±30
45
±22
±26
±34
±59
67
Reverse Breakdown Voltage
Tolerance (Note 2)
V
mV
µA
Minimum Operating Current
I
RMIN
45
70
I
I
I
I
= 10mA
±20
±15
±15
±15
0.3
0.3
2.5
2.5
0.3
0.3
0.3
50
R
Average Reverse Voltage
Temperature Coefficient
(Notes 2 and 3)
LM4040A/B/C
±100
±150
∆V /∆T
= 1mA
ppm/°C
R
R
LM4040D
= 100µA
R
LM4040A/B/C
LM4040D
1.0
1.2
8.0
10.0
0.8
0.9
1.1
≤ I ≤ 1mA
RMIN
R
Reverse Breakdown Voltage
Change with Operating
Current Change
mV
LM4040A/B/C
LM4040D
1mA ≤ I ≤ 15mA
R
LM4040A/B
LM4040C
Reverse Dynamic
Impedance (Note 3)
I
I
= 1mA, f = 120Hz,
R
AC
Z
e
Ω
R
= 0.1I
R
LM4040D
Wideband Noise
I
= 100µA, 10Hz ≤ f ≤ 10kHz
µV
RMS
N
R
Reverse Breakdown Voltage
Long-Term Stability
∆V
T = 1000h
120
ppm
R
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LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
Electrical Characteristics—4.096V
(I = 100μA, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
R
A
MIN
MAX A
PARAMETER
SYMBOL
CONDITIONS
LM4040A (0.1%)
MIN
TYP
4.096
4.096
4.096
4.096
±4.1
±8.2
±20
±41
50
MAX
4.100
4.104
4.116
4.137
±31
UNITS
4.092
4.088
4.076
4.055
LM4040B (0.2%)
LM4040C (0.5%)
LM4040D (1.0%)
Reverse Breakdown Voltage
V
T
= +25°C
V
R
R
A
LM4040A
LM4040B
LM4040C
LM4040D
LM4040A/B/C
LM4040D
±35
Reverse Breakdown Voltage
Tolerance (Note 2)
V
mV
µA
±47
±81
73
Minimum Operating Current
I
RMIN
50
78
I
I
I
I
= 10mA
±30
±20
±20
±15
0.5
R
Average Reverse Voltage
Temperature Coefficient
(Notes 2 and 3)
LM4040A/B/C
±100
±150
∆V /∆T
= 1mA
ppm/°C
R
R
LM4040D
= 100µA
R
LM4040A/B/C
LM4040D
1.2
1.5
≤ I ≤ 1mA
RMIN
R
Reverse Breakdown Voltage
Change with Operating
Current Change
0.5
mV
LM4040A/B/C
LM4040D
3.0
10.0
13.0
1.0
1mA ≤ I ≤ 15mA
R
3.0
LM4040A/B/C
LM4040D
0.5
Reverse Dynamic
Impedance (Note 3)
I
I
= 1mA, f = 120Hz,
R
AC
Z
e
Ω
R
= 0.1I
R
0.5
1.3
Wideband Noise
I
= 100µA, 10Hz ≤ f ≤ 10kHz
64
µV
RMS
N
R
Reverse Breakdown Voltage
Long-Term Stability
∆V
T = 1000h
120
ppm
R
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LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
Electrical Characteristics—5.000V
(I = 100μA, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
R
A
MIN
MAX A
PARAMETER
SYMBOL
CONDITIONS
LM4040A (0.1%)
MIN
TYP
5.000
5.000
5.000
5.000
±5.0
±10
±25
±50
54
MAX
5.005
5.010
5.025
5.050
±38
UNITS
4.995
4.990
4.975
4.950
LM4040B (0.2%)
LM4040C (0.5%)
LM4040D (1.0%)
Reverse Breakdown Voltage
V
V
T
= +25°C
V
R
R
A
LM4040A
LM4040B
LM4040C
LM4040D
LM4040A/B/C
LM4040D
±43
Reverse Breakdown Voltage
Tolerance (Note 2)
mV
µA
±58
±99
80
Minimum Operating Current
I
RMIN
54
85
I
I
I
I
= 10mA
±30
±20
±20
±15
0.5
R
Average Reverse Voltage
Temperature Coefficient
(Notes 2 and 3)
LM4040A/B/C
±100
±150
∆V /∆T
= 1mA
ppm/°C
R
R
LM4040D
= 100µA
R
LM4040A/B/C
LM4040D
1.4
1.8
≤ I ≤ 1mA
RMIN
R
Reverse Breakdown Voltage
Change with Operating
Current Change
0.5
mV
LM4040A/B/C
LM4040D
3.5
12.0
15.0
1.1
1mA ≤ I ≤ 15mA
R
3.5
LM4040A/B/C
LM4040D
0.5
Reverse Dynamic
Impedance (Note 3)
I
I
= 1mA, f = 120Hz,
R
AC
Z
e
Ω
R
= 0.1I
R
0.5
1.5
Wideband Noise
I
= 100µA, 10Hz ≤ f ≤ 10kHz
80
µV
RMS
N
R
Reverse Breakdown Voltage
Long-Term Stability
∆V
T = 1000h
120
ppm
, as specified.
R
Note 1: All devices are 100% production tested at T = +25°C and are guaranteed by design for T = T
to T
MAX
A
A
MIN
Note 2: The overtemperature limit for Reverse Breakdown Voltage Tolerance is defined as the room-temperature Reverse
Breakdown Voltage Tolerance ±[(∆V /∆T)(max∆T)(V )], where ∆V /∆T is the V temperature coefficient, max∆T is the max-
R
R
R
R
imum difference in temperature from the reference point of +25°C to T
or T
, and V is the reverse breakdown volt-
MIN
MAX R
age. The total overtemperature tolerance for the different grades in the temperature range where max∆T = +65°C is shown
below:
A grade: ±0.75% = ±0.1% ±100ppm/°C x 65°C
B grade: ±0.85% = ±0.2% ±100ppm/°C x 65°C
C grade: ±1.15% = ±0.5% ±100ppm/°C x 65°C
D grade: ±1.98% = ±1.0% ±150ppm/°C x 65°C
The total over-temperature tolerance for the different grades in the extended temperature range where max ∆T = +100°C is
shown below:
A grade: ±1.1% = ±0.1% ±100ppm/°C x 100°C
B grade: ±1.2% = ±0.2% ±100ppm/°C x 100°C
C grade: ±1.5% = ±0.5% ±100ppm/°C x 100°C
D grade: ±2.5% = ±1.0% ±150ppm/°C x 100°C
Therefore, as an example, the A-grade LM4040-2.5 has an over-temperature reverse breakdown voltage tolerance of ±2.5V
x 0.75% = ±19mV.
Note 3: Guaranteed by design.
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LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
Typical Operating Characteristics
(I = 100μA, SC70-3 package, T = +25°C, unless otherwise noted.)
R
A
REVERSE CHARACTERISTICS AND
MINIMUM OPERATING CURRENT
LM4040-2.5V
TEMPERATURE DRIFT
LM4040-5.0V
TEMPERATURE DRIFT
1
0
5
0
6
5
4
3
2
1
0
LM4040_I_3-4.1
LM4040_I_3-5.0
-1
-2
-3
-4
-5
LM4040_I_3-3.0
-5
-10
-15
-20
LM4040_I_3-2.5
LM4040_I_3-2.1
0
50
REVERSE CURRENT (µA)
100
-50 -25
0
25
50
75 100 125
-50 -25
0
25
50
75 100 125
TEMPERATURE (°C)
TEMPERATURE (°C)
LM4040-2.5V
REVERSE VOLTAGE vs. I
LM4040-5.0V
REVERSE VOLTAGE vs. I
SHUNT
SHUNT
5
4
3
2
1
0
6
5
4
3
2
1
0
T
= +125°C
A
T
= -40°C
A
T
= -40°C
A
T
A
= +125°C
T
A
= +25°C
T
A
= +85°C
T
= +85°C
A
T
A
= +25°C
15
0
5
10
15
20
0
5
10
20
I
(mA)
I
(mA)
SHUNT
SHUNT
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LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
Typical Operating Characteristics (continued)
(I = 100μA, SC70-3 package, T = +25°C, unless otherwise noted.)
R
A
LM4040-2.5V
LOAD-TRANSIENT RESPONSE
LM4040-5.0V
LOAD-TRANSIENT RESPONSE
LM4040-2.5V
LOAD-TRANSIENT RESPONSE
LM4040-06
LM4040-07
LM4040-08
+25µA
+25µA
+250µA
-25µA
-25µA
-250µA
2mV/div
10mV/div
10mV/div
10µs/div
40µs/div
= 100µA ± 25µA
10ms/div
= 1mA ± 250µA
CH1: V
2V/div
GEN
CH2: V AC-COUPLED 2mV/div
I
I
SHUNT
R
SHUNT
I
= 100µA ± 25µA, R = 100kΩ, SEE FIGURE 1
R = 100kΩ, SEE FIGURE 1
L
R = 10kΩ, SEE FIGURE 1
L
SHUNT
L
LM4040-5.0V
LOAD-TRANSIENT RESPONSE
LM4040-2.5V
LOAD-TRANSIENT RESPONSE
LM4040-5.0V
LOAD-TRANSIENT RESPONSE
LM4040-11
LM4040-09
LM4040-10
+250µA
+2.5mA
+2.5mA
-250µA
-2.5mA
-2.5mA
10mV/div
20mV/div
20mV/div
10µs/div
= 1mA ± 250µA
10µs/div
= 10mA ± 2.5mA
10µs/div
= 10mA ± 2.5mA
I
I
I
SHUNT
SHUNT
SHUNT
R = 10kΩ, SEE FIGURE 1
L
R = 1kΩ, SEE FIGURE 1
L
R = 1kΩ, SEE FIGURE 1
L
I
SHUNT
1kΩ
+
-
V
B
R
L
V
R
V
GEN
Figure 1. Load-Transient Test Circuit
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LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
Typical Operating Characteristics (continued)
(I = 100μA, SC70-3 package, T = +25°C, unless otherwise noted.)
R
A
LM4040-2.5V
OUTPUT IMPEDANCE vs. FREQUENCY
LM4040-2.5V
STARTUP CHARACTERISTICS
LM4040-5.0V
STARTUP CHARACTERISTICS
LM4040-12
LM4040-13
1000
5V
5V
0V
C = 1µF
1
0V
100
10
I
R
= 150µA
2V
1V
0V
4V
2V
0V
C = 0
1
1
I
R
= 1mA
R
S
= 30kΩ
R = 16kΩ
S
SEE FIGURE 2
SEE FIGURE 2
0.1
0
4
8
12 16 20 24 28 32 36
0
10 20 30 40 50 60 70 80 90
0.1k
1k
10k
100k
1M
RESPONSE TIME (µs)
RESPONSE TIME (µs)
FREQUENCY (Hz)
LM4040-5.0V
LM4040-5.0V
LM4040-2.5V
NOISE vs. FREQUENCY
OUTPUT IMPEDANCE vs. FREQUENCY
NOISE vs. FREQUENCY
10,000
1000
100
100
10
1
10,000
1000
100
C
1
= 0
I
= 150µA
R
I
= 1µA
R
C
1
= 1µF
0.1
0.1k
1k
10k
FREQUENCY (Hz)
100k
1M
1
10
100
1k
10k
1
10
100
1k
10k
FREQUENCY (Hz)
FREQUENCY (Hz)
R
S
V
IN
V
R
1Hz RATE
50%
DUTY CYCLE
Figure 2. Startup Characteristics Test Circuit
Maxim Integrated
│ 10
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LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
Pin Configuration
TOP VIEW
+
+
1
2
LM4040
3
N.C.*
-
SC70-3/SOT23-3
*PIN 3 MUST BE LEFT UNCONNECTED
OR CONNECTED TO PIN 2.
Pin Description
PIN
1
NAME
FUNCTION
+
–
Positive Terminal of the Shunt Reference
2
Negative Terminal of the Shunt Reference
3
N.C.
No connection. Leave this pin unconnected or connected to pin 2.
Maxim Integrated
│ 11
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LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
Detailed Description
The LM4040 shunt references use the bandgap
principle to produce a stable, accurate voltage. The
device behaves similarly to an ideal zener diode; a
fixed voltage is maintained across its output terminals
when biased with 60μA to 15mA of reverse current. The
LM4040 behaves similarly to a silicon diode when biased
with forward currents up 10mA.
V
S
I
+ I
SHUNT LOAD
R
S
I
LOAD
V
R
I
SHUNT
Figure 3 shows a typical operating circuit. The LM4040 is
ideal for providing a stable reference from a highvoltage
power supply.
LM4040
Applications Information
The device’s internal pass transistor is used to maintain
Figure 3. Typical Operating Circuit
a constant output voltage (V
) by sinking the
SHUNT
necessary amount of current across a source resistor.
Temperature Performance
The source resistance (R ) is determined from the load
S
The LM4040 typically exhibits an output voltage temperature
coefficient within ±15ppm/°C. The polarity of the temperature
coefficient may be different from one device to another;
some may have positive coefficients, and others may
have negative coefficients.
current (I
) range, supply voltage (V ) variations,
LOAD
S
V
, and desired quiescent current.
SHUNT
Choose the value of R when V is at a minimum and
S
S
I
is at a maximum. Maintain a minimum I
of
LOAD
SHUNT
60μA at all times. The R value should be large enough to
S
keep I
less than 15mA for proper regulation when
High-Temperature Operation
SHUNT
V
S
is maximum and I
is at a minimum. To prevent
LOAD
The maximum junction temperature of the LM4040 is
+150°C. The maximum operating temperature for the
LM4040_E_ is +125°C. At a maximum load current of
15mA and a maximum output voltage of 5V, the part will
dissipate 75mW of power. The power dissipation limits
of the 3-pin SC70 call for a derating value of 2.17mW/°C
above +70°C and, therefore, for 75mW of power dissipation,
the part will selfheat to 35.56°C above ambient temperature.
If the ambient temperature is +125°C, the part operates
at 159.56°C, thereby exceeding the maximum junction
temperature value of +150°C. For high-temperature
operation, care must be taken to ensure the combination
of ambient temperature, output power dissipation and
package thermal resistance does not conspire to raise
the device temperature beyond that listed in the Absolute
Maximum Ratings. Either reduce the output load current or
the ambient temperature to keep the part within the limits.
damage to the device, I
20mA.
should never exceed
SHUNT
Therefore, the value of R is bounded by the following
S
equation:
[V
- V ] / [60μA + I
] > R >
LOAD(MAX) S
S(MIN)
R
[V
S(MAX)
- V ] / [20mA + I
]
LOAD(MIN)
R
Choosing a larger resistance minimizes the total power
dissipation in the circuit by reducing the shunt current
(P
= V x I
). Provide a safety margin to
D(TOTAL)
S
SHUNT
incorporate the worst-case tolerance of the resistor used.
Ensure that the resistor’s power rating is adequate, using
the following general power equation:
PD = I
x (V
- V
)
R
SHUNT
S(MAX)
SHUNT
Output Capacitance
The device does not require an external capacitor for
frequency stability and is stable for any output capacitance.
Maxim Integrated
│ 12
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LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
Ordering Information
INITIAL
OUTPUT
VOLTAGE (V)
TEMPCO
(ppm/°C)
TOP
MARK
PART
ACCURACY
TEMP RANGE
PIN-PACKAGE
(%)
LM4040AIM3-2.1+T
LM4040AIX3-2.1+T
LM4040BIM3-2.1+T
LM4040BIX3-2.1+T
LM4040CIM3-2.1+T
LM4040CIX3-2.1+T
LM4040DIM3-2.1+T
LM4040DIX3-2.1+T
LM4040AEM3-2.1+T
LM4040AEX3-2.1+T
LM4040BEM3-2.1-T
LM4040BEX3-2.1-T
LM4040CEM3-2.1-T
LM4040CEX3-2.1+T
LM4040DEM3-2.1+T
LM4040DEX3-2.1+T
LM4040AIM3-2.5+T
LM4040AIX3-2.5+T
LM4040BIM3-2.5+T
LM4040BIX3-2.5+T
LM4040BIM3-2.5/V+T
LM4040CIM3-2.5+T
LM4040CIX3-2.5+T
LM4040DIM3-2.5+T
LM4040DIX3-2.5+T
LM4040AEM3-2.5+T
LM4040AEX3-2.5+T
LM4040BEM3-2.5+T
LM4040BEX3-2.5+T
LM4040CEM3-2.5+T
LM4040CEM3-2.5/V+T
LM4040CEX3-2.5+T
LM4040DEM3-2.5+T
LM4040DEX3-2.5+T
2.048
2.048
2.048
2.048
2.048
2.048
2.048
2.048
2.048
2.048
2.048
2.048
2.048
2.048
2.048
2.048
2.500
2.500
2.500
2.500
2.500
2.500
2.500
2.500
2.500
2.500
2.500
2.500
2.500
2.500
2.500
2.500
2.500
2.500
0.1
0.1
0.2
0.2
0.5
0.5
1.0
1.0
0.1
0.1
0.2
0.2
0.5
0.5
1.0
1.0
0.1
0.1
0.2
0.2
0.2
0.5
0.5
1.0
1.0
0.1
0.1
0.2
0.2
0.5
0.5
0.5
1.0
1.0
100
100
100
100
100
100
150
150
100
100
100
100
100
100
150
150
100
100
100
100
100
100
100
150
150
100
100
100
100
100
100
100
150
150
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +125°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
3 SOT23
3 SC70
FZEF
ABJ
3 SOT23
3 SC70
FZEG
ABK
3 SOT23
3 SC70
FZEH
ABL
3 SOT23
3 SC70
FZEI
ABM
FZNG
ALF
3 SOT23
3 SC70
3 SOT23
3 SC70
FZNH
ALG
3 SOT23
3 SC70
FZNI
ALH
3 SOT23
3 SC70
FZNJ
ALI
3 SOT23
3 SC70
FZEJ
ABN
3 SOT23
3 SC70
FZEK
ABO
FZWL
FZEL
ABP
3 SOT23
3 SOT23
3 SC70
3 SOT23
3 SC70
FZEM
ABQ
FZNK
ALJ
3 SOT23
3 SC70
3 SOT23
3 SC70
FZNL
ALK
3 SOT23
3 SOT23
3 SC70
FZNM
FZVZ
ALL
3 SOT23
3 SC70
FZNN
ALM
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Maxim Integrated
│ 13
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LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
Ordering Information (continued)
INITIAL
OUTPUT
VOLTAGE (V)
TEMPCO
(ppm/°C)
TOP
MARK
PART
ACCURACY
TEMP RANGE
PIN-PACKAGE
(%)
LM4040AIM3-3.0+T
LM4040AIX3-3.0+T
LM4040BIM3-3.0+T
LM4040BIX3-3.0+T
LM4040CIM3-3.0+T
LM4040CIX3-3.0+T
LM4040DIM3-3.0+T
LM4040DIX3-3.0+T
LM4040AEM3-3.0+T
LM4040AEM3-3.0/V+T
LM4040AEX3-3.0+T
LM4040AEX3-3.0/V+T
LM4040BEM3-3.0+T
LM4040BEX3-3.0+T
LM4040CEX3-3.0+T
LM4040DEM3-3.0+T
LM4040DEX3-3.0+T
LM4040AEX3-3.3+T
LM4040BEX3-3.3+T
LM4040CEX3-3.3+T
LM4040DEX3-3.3+T
LM4040AIM3-4.1+T
LM4040AIX3-4.1+T
LM4040BIM3-4.1+T
LM4040BIX3-4.1+T
LM4040CIM3-4.1+T
LM4040CIX3-4.1+T
LM4040DIM3-4.1+T
LM4040DIX3-4.1+T
LM4040AEM3-4.1+T
LM4040AEX3-4.1+T
LM4040BEM3-4.1+T
LM4040BEX3-4.1+T
LM4040CEM3-4.1+T
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.000
3.300
3.300
3.300
3.300
4.096
4.096
4.096
4.096
4.096
4.096
4.096
4.096
4.096
4.096
4.096
4.096
4.096
0.1
0.1
0.2
0.2
0.5
0.5
1.0
1.0
0.1
0.1
0.1
0.1
0.2
0.2
0.5
1.0
1.0
0.1
0.2
0.5
1.0
0.1
0.1
0.2
0.2
0.5
0.5
1.0
1.0
0.1
0.1
0.2
0.2
0.5
100
100
100
100
100
100
150
150
100
100
100
100
100
100
100
150
150
100
100
100
150
100
100
100
100
100
100
150
150
100
100
100
100
100
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
3 SOT23
3 SC70
3 SOT23
3 SC70
3 SOT23
3 SC70
3 SOT23
3 SC70
3 SOT23
3 SOT23
3 SC70
3 SC70
3 SOT23
3 SC70
3 SC70
3 SOT23
3 SC70
3 SC70
3 SC70
3 SC70
3 SC70
3 SOT23
3 SC70
3 SOT23
3 SC70
3 SOT23
3 SC70
3 SOT23
3 SC70
3 SOT23
3 SC70
3 SOT23
3 SC70
3 SOT23
FZEN
ABR
FZEO
ABS
FZEP
ABT
FZEQ
ABU
FZNO
FZWW
ALN
ALN
FZNP
ALO
ALP
FZNR
ALQ
ANY
ANZ
AOA
AOB
FZER
ABV
FZES
ABW
FZET
ABX
FZEU
ABY
FZNS
ALR
FZNT
ALS
FZNU
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Maxim Integrated
│ 14
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LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
Ordering Information (continued)
INITIAL
TOP
MARK
OUTPUT
VOLTAGE (V)
TEMPCO
(ppm/°C)
PART
ACCURACY
TEMP RANGE
PIN-PACKAGE
(%)
LM4040CEX3-4.1+T
LM4040DEM3-4.1+T
LM4040DEM3-4.1/V+T
LM4040DEX3-4.1+T
LM4040AIM3-5.0+T
LM4040AIM3-5.0/V+T
LM4040AIX3-5.0+T
LM4040BIM3-5.0+T
LM4040BIX3-5.0+T
LM4040CIM3-5.0+T
LM4040CIX3-5.0+T
LM4040DIM3-5.0+T
LM4040DIX3-5.0+T
LM4040AEM3-5.0+T
LM4040AEM3-5.0/V+T
LM4040AEX3-5.0+T
LM4040BEM3-5.0+T
LM4040BEX3-5.0+T
LM4040CEM3-5.0+T
LM4040CEM3-5.0/V+T
LM4040CEX3-5.0+T
LM4040DEM3-5.0+T
LM4040DEX3-5.0+T
4.096
4.096
4.096
4.096
5.000
5.000
5.000
5.000
5.000
5.000
5.000
5.000
5.000
5.000
5.000
5.000
5.000
5.000
5.000
5.000
5.000
5.000
5.000
0.5
1.0
1.0
1.0
0.1
0.1
0.1
0.2
0.2
0.5
0.5
1.0
1.0
0.1
0.1
0.1
0.2
0.2
0.5
0.5
0.5
1.0
1.0
100
150
150
150
100
100
100
100
100
100
100
150
150
100
100
100
100
100
100
100
100
150
150
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
3 SC70
3 SOT23
3 SOT23
3 SC70
ALT
FZNV
FZWA
ALU
3 SOT23
3 SOT23
3 SC70
FZEV
+FZWB
ABZ
3 SOT23
3 SC70
FZEW
ACA
3 SOT23
3 SC70
FZEX
ACB
3 SOT23
3 SC70
FZEY
ACC
3 SOT23
3 SOT23
3 SC70
FZNW
FZWB
ALV
3 SOT23
3 SC70
FZNX
ALW
3 SOT23
3 SOT23
3 SC70
FZNY
+FZWC
ALX
3 SOT23
3 SC70
FZNZ
ALY
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Chip Information
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
3 SOT23
3 SC70
U3+1
21-0051
21-0075
90-0179
90-0208
X3+2
Maxim Integrated
│ 15
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LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
DESCRIPTION
CHANGED
0
5
8/00
7/05
Initial release
—
Updated Electrical Characteristics.
2–7
Updated Selector Guide, Absolute Maximum Ratings, and Ordering
Information.
6
7
4/11
1, 2, 12, 13, 14
Add /V+ automotive-qualified identification to the Selector Guide and
Ordering Information.
11/11
1, 12
8
9
3/13
1/16
Updated Ordering Information and removed Selector Guide.
Added /V part to Ordering Information table
1, 13, 14
13
1
10
10/17
Added AEC-Q100 qualification statement to Benefits and Features section
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
©
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2017 Maxim Integrated Products, Inc.
│ 16
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