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TL431ACZT Fiches technique(PDF) 2 Page - STMicroelectronics

No de pièce TL431ACZT
Description  PROGRAMMABLE VOLTAGE REFERENCE
Download  10 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TL431ACZT Fiches technique(HTML) 2 Page - STMicroelectronics

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TL431
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ABSOLUTE MAXIMUM RATINGS
OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
T
amb = 25°C (unless otherwise specified)
1) ∆V
ref is defined as the difference between the maximum and minimum values obtained over the full temperature range.
∆V
ref = Vref max. - Vref min.
2) The dynamic Impedance is definied as
ZKA =
Symbol
Parameter
Value
Unit
VKA
Cathode to Anode Voltage
37
V
Ik
Continuous Cathode Current Range
-100 to +150
mA
Iref
Reference Input Current Range
-0.05 to +10
mA
pd
Power Dissipation 1)
TO92
SO8 batwing
625
960
mW
Tstg
Storage Temperature Range
-65 to +150
°C
1. Pd is calculated with Tamb = +25°C, Tj = +150°C and Rthja = 200°C/W for TO92 package
= 130°C/W for SO8 batwing package
Symbol
Parameter
Value
Unit
VKA
Cathode to Anode Voltage
Vref to 36
V
Ik
Cathode Current
1 to 100
mA
Toper
Operating Free-air Temperature Range TL431C/AC
TL431I/AI
0 to +70
-40 to +105
°C
Symbol
Parameter
TL431C
TL431AC
Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
Vref
Reference Input Voltage
VKA = Vref , Ik = 10 mA
Tamb = 25°C
Tmin Tamb Tmax
2.44
2.423
2.495
2.55
2.567
2.47
2.453
2.495
2.52
2.537
V
∆V
ref
Reference Input Voltage Deviation Over-
Temperature Range - note 1
VKA = Vref, Ik = 10 mA,Tmin Tamb Tmax
3
17
3
15
mV
Ratio of Change in Reference Input
Voltage to Change in Cathode to Anode
Voltage - (figure 2)
Ik = 10mA
∆V
KA = 10V to Vref
∆V
KA = 36V to 10V
-1.4
-1
-2.7
-2
-1.4
-1
-2.7
-2
mV/V
Iref
Reference Input Current
Ik = 10mA, R1 = 10k
Ω, R2 = ∞
Tamb = 25°C
Tmin Tamb Tmax
1.8
4
5.2
1.8
4
5.2
µA
∆I
ref
Reference Input Current Deviation
Over Temperature Range
Ik = 10mA, R1 = 10k
Ω, R2 =∞
Tmin Tamb Tmax
0.4
1.2
0.4
1.2
µA
Imin
Minimum Cathode Current for Regulation
VKA = Vref
0.5
1
0.5
0.6
mA
Ioff
Off-State Cathode Current
2.6
1000
2.6
1000
nA
ZKA
Dynamic Impedance - note 2
VKA = Vref ,∆ Ik = 1 to100mA, f 1kHZ
0.22
0.5
0.22
0.5
∆Vref
∆Vka
------------
T1
T2
Temperature
V ref max.
V ref min.
∆VKA
∆IK
-----------------


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