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TL431-SOT-23 Datasheet, PDF (2/6 Pages) Jiangsu High diode Semiconductor Co., Ltd – SOT-23 Encapsulate Adjustable Reference Source
Electrical Characteristics (TA=25℃ 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=-25℃ ,TMAX=+85℃
Symbol
Vref
△Vref /△T
△Vref /△VKA
lref
△lref /△T
Test conditions
VKA=VREF, IKA=10mA
VKA =VREF, IKA =10mA
TMIN≤Ta≤TMAX
IKA=10mA
△VKA
=10V~VREF
△VKA
=36V~ 10V
IKA= 10mA,R1=10kΩ
R2=∞
lKA=10mA, R1=10kΩ
R2=∞
TA=-25 to 85℃
IKA(min)
VKA=VREF
IKA(OFF)
ZKA
VKA=36V,VREF=0
VKA=VREF, lKA=1 to 100mA
f≤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
Ω
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
ǒ Ǔ + ) ) VKA
Vref 1
R1
R2
Iref S R1
VKA
Ioff
High Diode Semiconductor
2