MAXIM LM4041 Technical data

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General Description
The LM4041 is a precision two-terminal shunt mode, bandgap voltage reference with a fixed reverse break­down voltage of 1.225V. Ideal for space-critical appli­cations, the LM4041 is offered in the subminiature 3-pin SC70 surface-mount package (1.8mm
1.8mm), 50% smaller than comparable devices in SOT23 surface­mount packages (SOT23 versions are also available).
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 LM4041 has a 60µA to 12mA shunt current capability with low dynamic impedance, ensur­ing stable reverse-breakdown voltage accuracy over a wide range of operating temperatures and currents.
The LM4041 does not require an external stabilizing capacitor while ensuring stability with any capacitive load.
The LM4041 is guaranteed over the temperature range
-40°C to +125°C.
________________________Applications
Portable, Battery-Powered Equipment
Notebook Computers
Cell Phones
Industrial Process Controls
Features
Ultra-Small 3-Pin SC70 Package
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 12mA
Low 20µV
RMS
Output Noise (10Hz to 10kHz)
1.225V Fixed Reverse Breakdown Voltage
No Output Capacitors Required
Tolerates Capacitive Loads
LM4041
Improved Precision Micropower
Shunt Voltage Reference
________________________________________________________________ Maxim Integrated Products 1
-
1
3 N.C.*
+
LM4041
SC70-3/SOT23-3
TOP VIEW
2
*PIN 3 MUST BE LEFT FLOATING OR CONNECTED TO PIN 2.
Pin Configuration
Selector Guide
19-1704; Rev 4; 7/05
Ordering Information
PART
TEMP RANGE
PIN-
TOP
MARK
LM4041AIX3-1.2-T
-40°C to +85°C 3 SC70-3
ABF
LM4041AIM3-1.2-T
-40°C to +85°C
FZEB
LM4041AEX3-1.2-T
3 SC70-3
ALB
LM4041AEM3-1.2-T
FZNC
LM4041BIX3-1.2-T
-40°C to +85°C 3 SC70-3
ABG
LM4041BIM3-1.2-T
-40°C to +85°C
FZEC
LM4041BEX3-1.2-T
3 SC70-3
ALC
LM4041BEM3-1.2-T
FZND
LM4041CIX3-1.2-T
-40°C to +85°C 3 SC70-3
ABH
LM4041CIM3-1.2-T
-40°C to +85°C
FZED
LM4041CEX3-1.2-T
3 SC70-3
ALD
LM4041CEM3-1.2-T
FZNE
LM4041DIX3-1.2-T
-40°C to +85°C 3 SC70-3
ABI
LM4041DIM3-1.2-T
-40°C to +85°C
FZEE
LM4041DEX3-1.2-T
3 SC70-3
ALE
LM4041DEM3-1.2-T
FZNF
*See Selector Guide for a listing of LM4041 Output Voltage,
Initial Accuracy, and Temperature Coefficient specifications.
查询LM4040_EM3-2.5供应商
PACKAGE
3 SOT23-3
-40°C to +125°C
-40°C to +125°C 3 SOT23-3
3 SOT23-3
-40°C to +125°C
-40°C to +125°C 3 SOT23-3
3 SOT23-3
-40°C to +125°C
-40°C to +125°C 3 SOT23-3
3 SOT23-3
-40°C to +125°C
-40°C to +125°C 3 SOT23-3
INITIAL
PART
LM4041A___-1.2-T 0.1 1.225 100
LM4041B___-1.2-T 0.2 1.225 100
LM4041C___-1.2-T 0.5 1.225 100
LM4041D___-1.2-T 1.0 1.225 150
ACCURACY
(%)
OUTPUT
VOLTAGE
(V)
TEMPCO (ppm/°C)
LM4041
Improved Precision Micropower Shunt Voltage Reference
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(IR= 100µA, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
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.
Reverse Current (cathode to anode) ..................................20mA
Forward Current (anode to cathode) ..................................10mA
Continuous Power Dissipation (T
A
= +70°C)
3-Pin SC70 (derate 2.17mW/°C above +70°C)............174mW
3-Pin SOT23 (derate 4.01mW/°C above +70°C)..........320mW
Operating Temperature Range
LM4041_I_ _ _..................................................-40°C to +85°C
LM4041_E_ _ _ ..............................................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) ................................+300° C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LM4041A (0.1%)
LM4041B (0.2%)
LM4041C (0.5%)
Reverse Breakdown Voltage V
R
TA = +25°C
LM4041D (1.0%)
V
LM4041A (0.1%)
LM4041B (0.2%)
LM4041C (0.5%)
±14
Reverse Breakdown Voltage Tolerance (Note 2)
V
R
LM4041D (1.0%) ±12 ±24
mV
LM4041A/B/C 45 60
Minimum Operating Current
LM4041D 45 65
µA
IR = 10mA ±20
LM4041A/B/C ±15
IR = 1mA
LM4041D ±15
Average Reverse Voltage Temperature Coefficient (Notes 2 and 3)
IR = 100µA ±15
ppm/°C
LM4041A/B/C 0.7 1.5
I
RMIN
I
R
1mA
LM4041D 0.7 2.0
LM4041A/B/C 2.5 8.0
Reverse Breakdown Voltage Change with Operating Current Change
1mA ≤ I
R
12mA
LM4041D 2.5
mV
LM4041A/B/C 0.5 1.5
Reverse Dynamic Impedance (Note 3)
Z
R
IR = 1mA, f = 120Hz, I
AC
= 0.1I
R LM4041D 0.5 2.0
1.2238 1.2250 1.2262
1.2226 1.2250 1.2275
1.2189 1.2250 1.2311
1.2128 1.2250 1.2373
±1.2 ±9.2 ±2.4 ±10.4 ±6.0
I
RMIN
VR/∆T
VR/∆I
R
±100 ±150
10.0
LM4041
Improved Precision Micropower
Shunt Voltage Reference
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(IR= 100µA, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
Note 1: All devices are 100% production tested at +25°C and are guaranteed by design for T
A
= T
MIN
to T
MAX
, as specified.
Note 2: The overtemperature limit for Reverse Breakdown Voltage Tolerance is defined as the room-temperature Reverse
Breakdown Voltage Tolerance ±[(
VR/ T)(max∆T)(VR)], where ∆VR/ T is the VRtemperature coefficient, maxT is the
maximum difference in temperature from the reference point of +25°C to T
MIN
or T
MAX
, and VRis the reverse breakdown
voltage. The total overtemperature tolerance for the different grades in the temperature range where maxT = +65°C is shown below: A grade: ±0.75% = ±0.1% ±100ppm/°C
65°C
B grade: ±0.85% = ±0.2% ±100ppm/°C
65°C
C grade: ±1.15% = ±0.5% ±100ppm/°C
65°C
D grade: ±1.98% = ±1.0% ±150ppm/°C
65°C
The total overtemperature tolerance for the different grades in the extended temperature range where maxT = +100°C is shown below: A grade: ±1.1% = ±0.1% ±100ppm/°C
100°C
B grade: ±1.2% = ±0.2% ±100ppm/°C
100°C
C grade: ±1.5% = ±0.5% ±100ppm/°C
100°C
D grade: ±2.5% = ±1.0% ±150ppm/°C
100°C Therefore, as an example, the A-grade LM4041-1.2 has an overtemperature reverse breakdown voltage tolerance of ±2.5V x 0.75% = ±19mV.
Note 3: Guaranteed by design.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Wideband Noise e
N
IR = 100µA, 10Hz ≤ f ≤ 10kHz 20
µV
RMS
Reverse Breakdown Voltage Long-Term Stability
V
R
T = 1000h, IR = 100µA 120
ppm
TEMPERATURE DRIFT
LM4041 toc02
TEMPERATURE (°C)
REFERENCE VOLTAGE CHANGE (mV)
1007550250-25
-2
-1
0
1
-3
-50 125
REVERSE VOLTAGE vs. CURRENT
LM4041 toc03
SOURCE CURRENT (mA)
REVERSE VOLTAGE CHANGE (mV)
15105
1
2
3
4
5
6
0
020
TA = +25°C
TA = -40°C
TA = +125°C
TA = +85°C
Typical Operating Characteristics
(IR= 100µA, SC70-3 package, TA= +25°C, unless otherwise noted.)
0
20
60
40
80
100
0 0.80.4 1.2 1.6 2.0
REVERSE CHARACTERISTICS AND
MINIMUM OPERATING CURRENT
LM4041-01
REVERSE VOLTAGE (V)
REVERSE CURRENT (µA)
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