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TL431-SOT-23 Datasheet, PDF (2/6 Pages) Jiangsu High diode Semiconductor Co., Ltd – SOT-23 Encapsulate Adjustable Reference Source | |||
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Electrical Characteristics (TA=25â unless otherwise noted)
Parameter
Reference input voltage (Fig.1)
Deviation of reference input voltage
over temperature (note) (Fig.1)
Ratio of change in reference input
voltage to the change in cathode
voltage (Fig.2)
Reference input current (Fig.2)
Deviation Of reference input current
over full temperature range (Fig.2)
Minimum cathode current for
regulation (Fig.1)
Off-state cathode Current (Fig.3)
Dynamic impedance
Note: TMIN=-25â ,TMAX=+85â
Symbol
Vref
â³Vref /â³T
â³Vref /â³VKA
lref
â³lref /â³T
Test conditions
VKA=VREF, IKA=10mA
VKA =VREF, IKA =10mA
TMINâ¤Taâ¤TMAX
IKA=10mA
â³VKA
=10V~VREF
â³VKA
=36V~ 10V
IKA= 10mA,R1=10kâ¦
R2=â
lKA=10mA, R1=10kâ¦
R2=â
TA=-25 to 85â
IKA(min)
VKA=VREF
IKA(OFF)
ZKA
VKA=36V,VREF=0
VKA=VREF, lKA=1 to 100mA
fâ¤1.0kHz
Min
2.475
Typ
2.5
4.5
Max
2.525
17
Unit
V
mV
-1.0 -2.7 mV/V
-0.5 -2.0 mV/V
1.5
4
μA
0.4
1.2
μA
0.45 1.0
mA
0.05 1.0
μA
0.15 0.5
â¦
CLASSIFICATION RI Vref
Rank
Range
0.5%
2.487-2.513
1%
2.475-2.525
Figure 1. Test Circuit for VKA = Vref
Input
IK VKA
Vref
Figure 2. Test Circuit for VKA > Vref
Figure 3. Test Circuit for Ioff
Input
VKA
Input
IK
R1 Iref
R2
Vref
Ç Ç + ) ) VKA
Vref 1
R1
R2
Iref S R1
VKA
Ioff
High Diode Semiconductor
2
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