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LM4050AIM3-4.1 Datasheet(PDF) 8 Page - Texas Instruments

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Part # LM4050AIM3-4.1
Description  LM4050-N/LM4050-N-Q1 Precision Micropower Shunt Voltage Reference
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
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LM4050AIM3-4.1 Datasheet(HTML) 8 Page - Texas Instruments

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LM4050-N, LM4050-N-Q1
SNOS455E – MAY 2000 – REVISED APRIL 2013
www.ti.com
LM4050-N-10.0
Electrical Characteristics
Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25°C. The grades A, B and C designate initial
Reverse Breakdown Voltage tolerances of ±0.1% and ±0.2% and 0.5% respectively.
Typical
LM4050-
LM4050-
LM4050-
(1)
NAIM3
NBIM3
NCIM3
LM4050-
LM4050-
LM4050-
Units
Symbol
Parameter
Conditions
NAEM3
NBEM3
NCEM3
(Limit)
Limits
Limits
Limits
(2)
(2)
(2)
VR
Reverse Breakdown Voltage
IR = 150 μA
10.00
V
Reverse Breakdown Voltage
IR = 150 μA
±10
±20
±50
mV (max)
Tolerance (3)
Industrial Temp. Range
±43
±53
±83
mV (max)
Extended Temp. Range
±60
±70
±100
mV (max)
IRMIN
Minimum Operating Current
80
μA
100
100
100
μA (max)
Industrial Temp. Range
103
103
103
μA (max)
Extended Temp. Range
110
110
110
μA (max)
ΔVR/ΔT
Average Reverse Breakdown
IR = 10 mA
±40
ppm/°C
Voltage Temperature Coefficient (3)
IR = 1 mA
±20
ppm/°C
IR = 150 μA
±20
±50
±50
±50
ppm/°C (max)
ΔVR/ΔIR
Reverse Breakdown Voltage
IRMIN ≤ IR ≤ 1 mA
0.8
mV
Change with Operating Current
1.5
1.5
1.5
mV (max)
Change (4)
3.5
3.5
3.5
mV (max)
1 mA
≤ IR ≤ 15 mA
8.0
mV
12.0
12.0
12.0
mV (max)
23.0
23.0
23.0
mV (max)
ZR
Reverse Dynamic Impedance
IR = 1 mA, f = 120 Hz,
0.7
Ω
IAC = 0.1 IR
eN
Wideband Noise
IR = 150 μA
150
μVrms
10 Hz
≤ f ≤ 10 kHz
ΔVR
Reverse Breakdown Voltage Long
t = 1000 hrs
120
Term Stability
T = 25°C ±0.1°C
ppm
IR = 150 μA
VHYST
Thermal Hysteresis
ΔT = −40°C to 125°C
2.8
mV
(5)
(1)
Typicals are at TJ = 25°C and represent most likely parametric norm.
(2)
Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate National's AOQL.
(3)
The boldface (over-temperature) limit for Reverse Breakdown Voltage Tolerance is defined as the room temperature Reverse
Breakdown Voltage Tolerance ±[(
ΔV R/ΔT)(maxΔT)(VR)]. Where, ΔVR/ΔT is the VR temperature coefficient, maxΔT is the maximum
difference in temperature from the reference point of 25°C to T MIN or TMAX, and VR is the reverse breakdown voltage. The total over-
temperature tolerance for the different grades in the industrial temperature range where max
ΔT = 65°C is shown below:
A-grade:
±0.425% = ±0.1% ±50 ppm/°C × 65°C
B-grade: ±0.525% = ±0.2% ±50 ppm/°C × 65°C
C-grade: ±0.825% = ±0.5% ±50 ppm/°C ×
65°CTherefore, as an example, the A-grade LM4050-N-2.5 has an over-temperature Reverse Breakdown Voltage tolerance of ±2.5V ×
0.425% = ±11 mV.
(4)
Load regulation is measured on pulse basis from no load to the specified load current. Output changes due to die temperature change
must be taken into account separately.
(5)
Thermal hysteresis is defined as the difference in voltage measured at +25°C after cycling to temperature -40°C and the 25°C
measurement after cycling to temperature +125°C.
8
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Product Folder Links: LM4050-N LM4050-N-Q1


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