TL431_11 Datasheet, PDF (3/10 Pages) Fairchild Semiconductor – Programmable Shunt Regulator

TL431/TL431A
Electrical Characteristics
(TA = +25°C, unless otherwise specified)
Parameter
Reference Input Voltage
Deviation of Reference
Input Voltage Over-
Temperature (Note 1)
Ratio of Change in
Reference Input Voltage
to the Change in
Cathode Voltage
Reference Input Current
Deviation of Reference
Input Current Over Full
Temperature Range
Minimum Cathode Cur-
rent for Regulation
Off - Stage Cathode
Current
Dynamic Impedance
(Note 2)
Symbol
Conditions
VREF VKA=VREF, IKA=10mA
TL431
TL431A
Unit
Min. Typ. Max. Min. Typ. Max.
2.440 2.495 2.550 2.470 2.495 2.520 V
ΔVREF/ VKA=VREF, IKA=10mA
ΔT
TMIN≤TA≤TMAX
- 4.5 17
- 4.5 17 mV
ΔVREF/ IKA
ΔVKA =10mA
ΔVKA=10V-
VREF
ΔVKA=36V-
10V
IREF
IKA=10mA,
R1=10KΩ,R2=∞
IKA=10mA,
ΔIREF/ΔT R1=10KΩ,R2=∞
TA =Full Range
- - 1.0 -2.7
- -0.5 -2.0
- 1.5 4
- 0.4 1.2
- -1.0 -2.7
mV/V
- -0.5 -2.0
- 1.5 4 μA
- 0.4 1.2 μA
IKA(MIN) VKA=VREF
- 0.45 1.0
- 0.45 1.0 mA
IKA(OFF) VKA=36V, VREF=0
VKA=VREF,
ZKA IKA=1 to 100mA
f ≥1.0KHz
- 0.05 1.0
- 0.05 1.0 μA
- 0.15 0.5
- 0.15 0.5 Ω
• T_MIN= -25 °C, T_MAX= +85 °C
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