TL431_11 Datasheet, PDF (4/7 Pages) Fairchild Semiconductor – Programmable Shunt Regulator

TL431
LINEAR INTEGRATED CIRCUIT
„ ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Cathode Voltage
V_KA
37
V
Cathode Current Range(Continuous)
I_KA
-100 ~ +150
mA
Reference Input Current Range
I_REF
-0.05 ~ +10
mA
TO-92
770
mW
Power Dissipation
SOT-89
P_D
800
mW
SOT-23/SOT-23-3/SOT-25
300
mW
Operating Junction
T_J
+150
°C
Operating Ambient
T_OPR
-40 ~ +85
°C
Storage Temperature
T_STG
-65 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
„ RECOMMENDED OPERATING CONDITIONS
Cathode Voltage
Cathode Current
PARAMETER
SYMBOL
V_KA
I_KA
MIN
V_REF
1
TYP
„ ELECTRICAL CHARACTERISTICS (T_C= 25°C, unless otherwise specified.)
MAX
36
100
UNIT
V
mA
PARAMETER
SYMBOL
TEST CONDITIONS
TL431-A
Reference Input Voltage
TL431-1
V_REF V_KA=V_REF,I_KA=10mA _TL431-2
TL431-3
Deviation of reference Input Voltage Over ΔVREF V_KA=V_REF,I_KA=10mA
temperature
ΔT 0°C ≤Ta≤70°C
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
ΔVREF
ΔVKA
I_REF
ΔIREF
ΔT
I_KA=10mA
ΔV_KA=10V~V_REF
ΔV_KA=36V~10V
I_KA=10mA, R1=10kΩ, R2=∞
I_KA=10mA, R1=10kΩ, R2=∞
Ta =full Temperature
Minimum Cathode Current for Regulation I_KA(MIN) V_KA=V_REF
Off-State Cathode Current
I_KA(OFF) V_KA=36V, V_REF=0
Dynamic Impedance
Z_KA
V_KA=V_REF, I_KA=1 to 100mA
f≤1.0kHz
MIN TYP MAX UNIT
2.483 2.495 2.507 V
2.470 2.495 2.520 V
2.520 - 2.545 V
2.445 - 2.470 V
4.5 17 mV
-1.0 -2.7 mV/V
-0.5 -2.0 mV/V
1.5 4 µA
0.4 1.2 µA
0.3 0.5 mA
0.05 1.0 µA
0.15 0.5 Ω
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