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LM4050-N-Q1 Datasheet(PDF) 6 Page - Texas Instruments

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Part # LM4050-N-Q1
Description  Precision Micropower Shunt Voltage Reference
Download  42 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM4050-N-Q1 Datasheet(HTML) 6 Page - Texas Instruments

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LM4050-N, LM4050-N-Q1
SNOS455G – MAY 2000 – REVISED SEPTEMBER 2015
www.ti.com
6.6 Electrical Characteristics: 2.5-V Option
All other limits TA = TJ = 25°C. The grades A, B and C designate initial Reverse Breakdown Voltage tolerances of ±0.1%,
±0.2%, and 0.5% respectively.
PARAMETER
TEST CONDITIONS
MIN(1)
TYP(2)
MAX(1)
UNIT
IR = 100 μA
2.500
V
LM4050AIM3, LM4050AEM3
±2.5
Reverse breakdown voltage
IR = 100 μA
LM4050BIM3, LM4050BEM3
±5
mV
LM4050CIM3, LM4050CEM3
±13
LM4050AIM3, LM4050AEM3
±11
VR
Industrial temperature range,
LM4050BIM3, LM4050BEM3
±24
TA = TJ = TMIN to TMAX
LM4050CIM3, LM4050CEM3
±21
Reverse breakdown voltage
mV
tolerance(3)
LM4050AIM3, LM4050AEM3
±15
Extended temperature range,
LM4050BIM3, LM4050BEM3
±18
TA = TJ = TMIN to TMAX
LM4050CIM3, LM4050CEM3
±25
TA = TJ = 25°C
41
60
IRMIN
Minimum operating current
μA
TA = TJ = TMIN to TMAX
65
IR = 10 mA
±20
IR = 1 mA
±15
Average reverse breakdown
ΔVR/ΔT
ppm/°C
voltage temperature coefficient(3)
IR = 100 μA, TA = TJ = 25°C
±15
IR = 100 μA, TA = TJ = TMIN to TMAX
±50
IRMIN ≤ IR ≤ 1 mA, TA = TJ = 25°C
0.3
0.8
Reverse breakdown voltage
ΔVR/ΔIR
change with operating current
mV
IRMIN ≤ IR ≤ 1 mA
1.2
change(4)
TA = TJ = TMIN to TMAX
1 mA
≤ IR ≤ 15 mA, TA = TJ = 25°C
2.3
6
Reverse breakdown voltage
ΔVR/ΔIR
change with operating current
mV
1 mA
≤ IR ≤ 15 mA,
8
change(4)
TA = TJ = TMIN to TMAX
ZR
Reverse dynamic impedance
IR = 1 mA, f = 120 Hz, IAC = 0.1 IR
0.3
Ω
eN
Wideband noise
IR = 100 μA, 10 Hz ≤ f ≤ 10 kHz
41
μVrms
Reverse breakdown voltage long
ΔVR
t = 1000 hrs, T = 25°C ±0.1°C, IR = 100 μA
120
ppm
term stability
VHYST
Thermal hysteresis (5)
ΔT = −40°C to 125°C
07
mV
(1)
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.
(2)
Typicals are at TJ = 25°C and represent most likely parametric norm.
(3)
The overtemperature 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 overtemperature 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°C. Therefore, as an
example, the A-grade LM4050-N-2.5 has an overtemperature 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.
6
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