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

Plastic-Encapsulate Adjustable 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
TL431
SOT-23
1. REFERENCE
2. CATHODE
3. ANODE
SOT-89
1. REFERENCE
2. ANODE
3. CATHODE
TO-92
1. REFERENCE
2. ANODE
3. CATHODE
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)
Parameter
Symbol
Value
Cathode Voltage
VKA
37
Cathode Current Range (Continuous)
IKA
-100-+150
Reference lnput Current Range
Iref
0.05-+10
Power Dissipation
SOT-23
PD
300
SOT-89
PD
500
TO -92
PD
770
Operating temperature
Storage temperature Range
Topr
0-70
Tstg
-65-+150
Unit
V
mA
mA
mW
mW
mW
ELECTRICAL CHARACTERISTICS (Tamb=25 unless otherwise specified)
Parameter
Symbol
Test conditions
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
Vref
△Vref /△T
△Vref /△VKA
lref
△lref /△T
VKA=VREF, IKA=10mA
VKA =VREF, IKA =10mA
Tmin≤Ta≤Tmax
△VKA
=10V~VREF
IKA=10mA
△VKA
=36V~ 10V
IKA= 10mA,R1=10KΩ
R2=∞
lKA=10mA, R1=10KΩ
R2=∞
TA=full Temperature
IKA(min)
IKA(OFF)
ZKA
VKA=VREF
VKA=36V,VREF=0
VKA=VREF, lKA=1 to 100mA
f≤1.0KHz
CLASSIFICATION OF Vref
Rank
Range
0.5%
2.487-2.512
1%
2.475-2.525
Min Typ
2.450
2.5
4.5
Max
2.550
17
Unit
V
mV
-1.0
-2.7
m V/V
-0.5
-2.0
m V/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
Note:TMIN=0 ,TMAX=+70
2%
2.450-2.550
GUANGDONG HOTTECH INDUSTRIAL CO,. LTD.
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