LM4050QML_17 Datasheet, PDF (4/18 Pages) Texas Instruments – Precision Micropower Shunt Voltage Reference

LM4050QML
SNVS627G – JUNE 2010 – REVISED JULY 2013
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LM4050-2.5QML Electrical Characteristics SMD: 5962R0923561 (continued)
The initial Reverse Breakdown Voltage tolerance is ±0.1% @ 100μA.
Symbol
Parameter
Conditions
Notes Typical⁽¹⁾ Min
Max
Units
Sub-
groups
I_R = 60µA
±3
±15
Average Reverse Breakdown
I_R = 100μA
±3
±16
Voltage Temperature
Coefficient
I_R = 1mA
See ⁽²⁾
±3
±18
2
@ 25°C ≤ T_A ≤ 125°C
I_R = 10mA
±4
±20
ΔV_R/ΔT
I_R = 15mA
I_R = 60µA
±6
±22
ppm/°C
±3
±18
Average Reverse Breakdown
I_R = 100μA
±3
±19
Voltage Temperature
Coefficient
I_R = 1mA
See ⁽²⁾
±3.5
±22
3
@ −55°C ≤ T_A ≤ 25°C
I_R = 10mA
±10
±32
I_R = 15mA
±15
±45
Z_R
Reverse Dynamic Impedance
I_R = 1 mA, f = 120 Hz,
I_AC = 0.1 I_R
0.3
Ω
0.1 Hz ≤ f ≤ 10 Hz
9
V_N
Output Noise Voltage
10 Hz ≤ f ≤ 10KHz
50
μVpp
μVrms
C_LOAD
V_HYST
Load Capacitor
Thermal Hysteresis
Stable Over Temperature See⁽³⁾
60
ΔT = −55°C to 125°C See⁽⁴⁾
1
0
100
µF
ppm
(2) Not tested post irradiation. Typical post irradiation values listed in the post radiation Tempco table.
(3) Capacitive load not required but improves SET stability. This parameter is ensured by design and/or characterization and is not tested in
production.
(4) Thermal hysteresis is defined as the change in voltage measured at +25°C after cycling to temperature -55°C and the 25°C
measurement after cycling to temperature +125°C.
V_HYST = ^{lVR1 - VR2l} x 10⁶ ppm
V_R
Where: V_HYST = Thermal hysteresis expressed in ppm
V_R = Nominal preset output voltage
V_R1 = V_R before temperature fluctuation
V_R2 = V_R after temperature fluctuation.
Post Radiation @ 25°C⁽¹⁾
The initial Reverse Breakdown Voltage tolerance is ±0.1% @ 100μA. Qualification is performed with a 1.5X overtest. See for
TOTAL IONIZING DOSE details.
Symbol
Parameter
Conditions
30 krad 50 krad
100 krad
Sub-
groups
V_R
Reverse Breakdown Voltage
Tolerance
I_R = 60μA
I_R= 100μA
I_R = 1mA
I_R = 10mA
I_R = 15mA
Max +0.42% +0.67%
+1.75%
1
(1) Pre and post irradiation limits are identical to those listed under electrical characteristics except as listed in the post radiation table.
Post Radiation Tempco⁽¹⁾
Symbol
Parameter
ΔV_R/ΔT
Average Reverse Breakdown Voltage
Temperature Coefficient Drift @ 25°C
≤ T_A ≤ 125°C
Average Reverse Breakdown Voltage
Temperature Coefficient Drift @
−55°C ≤ T_A ≤ 25°C
Conditions
60μA ≤ I_R ≤ 15mA
60μA ≤ I_R ≤ 15mA
30 krad
+41
TYPICALS
50 krad
100 krad
+83
+144
+46
+87
+166
(1) Not tested post irradiation. Typical post irradiation values listed in the post radiation Tempco table.
Units
ppm/°C
ppm/°C
4
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