TL431 Datasheet, PDF (1/2 Pages) Motorola, Inc – PROGRAMMABLE PRECISION REFERENCES

TIGER ELECTRONIC CO.,LTD
TO-92 Encapsulate Adjustable Reference Source
T L431 Adjustable Accurate Reference Source
FEATURES
The output voltage can be adjusted to 36V
Low dynamic output impedance ,its typical value is 0.2Ω
Trapping current capability is 1 to 100mA
The typical value of the equivalent temperature factor in the
whole temperature scope is 50 ppm/℃
The effective temperature compensation in the working
range of full temperature
Low output noise voltage
Fast on -state response
TO-92
1.REFERENCE
2.ANODE
3.CATHODE
123
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)
Parameter
SYMBOL
VALUE
UNITS
Cathode Voltage
V_KA
37
V
Cathode Current Range (Continuous)
I_KA
-100-+150
mA
Reference lnput Current Range
Iref
0.05-+10
mA
Power Dissipation
Operating temperature
P_D
770
mW
Topr
0-70
℃
Storage temperature Range
Tstg
-65-+150℃
℃
ELECTRICAL CHARACTERISTICS (Tamb=25℃ unless otherwise specified)
Parameter
Symbol
Test conditions
MIN
Reference lnput Voltage
Deviation of reference input Voltage
Over temperature (note)
Ratio Of Change in Reference lnput
Voltage to the change in Cathode
Voltage
Reference lnput Current
Deviation Of Reference lnput Current
Over Full Temperature Range
Minimum cathode current for
regulation
Off-state cathode Current
Dynamic lmpedance
Note:T_MIN=0℃ ,T_MAX=+70℃
Vref
△Vref /△T
△V_ref /△V_KA
lref
△l_ref /△T
I_KA(min)
IKA(OFF)
Z_KA
VKA=VREF, IKA=10mA
V_KA =V_REF, I_KA =10mA
Tmin≤Ta≤Tmax
I_KA=10mA
△VKA
=10V~V_REF
△VKA
=36V~10V
I_KA= 10mA,R₁=10KΩ
R₂=∞
l_KA=10mA, R₁=10KΩ
R₂=∞
TA=full Temperature
V_KA=V_REF
VKA=36V ,VREF=0
VKA=VREF, lKA=1 to 100mA
f≤1.0KHz
2.450
TYP
2.5
4.5
-1.0
-0.5
1.5
0.4
0.45
0.05
0.15
MAX
2.550
17
-2.7
-2.0
4
1.2
1.0
1.0
0.5
UNIT
V
mV
m V/V
m V/V
μA
μA
mA
μA
Ω
CLASSIFICATION OF V_ref
Rank
Range
0.5%
2.487-2.512
1%
2.475-2.525
2%
2.450-2.550