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TL431K-89 Datasheet(PDF) 1 Page - Guangdong Kexin Industrial Co.,Ltd

No. de pieza TL431K-89
Descripción Electrónicos  Adjustable Accurate Reference Source
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Fabricante Electrónico  KEXIN [Guangdong Kexin Industrial Co.,Ltd]
Página de inicio  http://www.kexin.com.cn/index.asp
Logo KEXIN - Guangdong Kexin Industrial Co.,Ltd

TL431K-89 Datasheet(HTML) 1 Page - Guangdong Kexin Industrial Co.,Ltd

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SMD Type
www.kexin.com.cn
1
IC
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
Low output noise voltage
Fast on -state response
1.REFERENCE
3.CATHODE
2.ANODE
Absolute Maximum Ratings Ta = 25℃
Electrical Characteristics Ta = 25℃(unless otherwise specified)
Adjustable Accurate Reference Source
TL431K (KL431K)
Parameter
Symbol
Rating
Unit
Cathode Voltage
VKA
37
V
Cathode Current Range(Continuous)
IKA
-100~+150
Reference Input Current Range
Iref
0.05~+10
Maximum Power Dissipation
PD
500
mW
Thermal Resistance from Juntion to Ambient
RθJA
250
/W
Operating Junction Temperature
Tj
150
Operating Junction Temperature Range
Topr
0 ~ 70
Storage Temperature Range
Tstg
-65 ~ 150
mA
Parameter
Symbol
Min
Typ
Max
Unit
2.445
2.545
0.5%
2.482
2.508
1%
2.47
2.52
Deviation of Reference Input Voltage Over
Temperature(Fig.1) Tmin=0℃ ,Tmax=+70℃
Ratio Of Change in Reference lnput Voltage
VKA=VREF ~ 10V
-1.0
-2.7
to the Change in Cathode Voltage (Fig.2)
VKA=10V ~ 36V
-0.5
-2.0
Reference Input Current
Iref
1.5
4
Minmum Cathode Current for Regulation(Fig.1)
IKA(min)
0.45
1.0
mA
Off-state Cathode Current(Fig.3)
IKA(OFF)
0.05
0.5
uA
Dynamic Impedance
ZKA
0.15
0.5
Ω
Vref/△VKA IKA=10mA
mV/V
0.4
1.2
uA
IKA=10mA,R1=10 kΩ,R2=∞
IKA=10mA,R1=10 kΩ,R2=∞
Ta=full Temperature
Vref/△T
4.5
17
mV
VKA=VREF,IKA=10mA
Tmin≤Ta≤Tmax
Iref / △T
VKA=VREF
VKA=40V, VREF=0
Test Conditions
Reference Input Voltage(Fig.1)
Vref
RanK
V
2.495
VKA=VREF, IKA=1 to 100mA,f≤1.0KHz
VKA=VREF,IKA=10mA
Deviation Of Reference Input Current
Over Full Temperature Range(Fig.2)
Marking
Marking
431
1.70 0.1
0.42 0.1
0.46 0.1


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