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TL431AC Просмотр технического описания (PDF) - Microsemi Corporation

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TL431AC PROGRAMMABLE PRECISION REFERENCES Microsemi
Microsemi Corporation Microsemi
TL431AC Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
TL431
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
VKA Cathode to Anode Voltage
Ik
Continuous Cathode Current Range
Iref Reference Input Current Range
pd
Power Dissipation 1)
TO92
SO8 batwing
Tstg Storage Temperature Range
1.
Pd
is
calculated
with
Tamb
=
+25°C,
Tj
=
+150°C
and
Rthja
=
=
200°C/W
130°C/W
for
for
TO92 package
SO8 batwing package
OPERATING CONDITIONS
Value
37
-100 to +150
-0.05 to +10
625
960
-65 to +150
Unit
V
mA
mA
mW
°C
Symbol
VKA
Ik
Toper
Parameter
Cathode to Anode Voltage
Cathode Current
Operating Free-air Temperature Range TL431C/AC
TL431I/AI
ELECTRICAL CHARACTERISTICS
Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Vref
Vref
----V---r--e---f
Vka
Iref
Iref
Imin
Ioff
ZKA
Reference Input Voltage
VKA = Vref , Ik = 10 mA Tamb = 25°C
Tmin Tamb Tmax
Reference Input Voltage Deviation Over-
Temperature Range - note 1
VKA = Vref, Ik = 10 mA,Tmin Tamb Tmax
Ratio of Change in Reference Input
Voltage to Change in Cathode to Anode
Voltage - (figure 2)
Ik = 10mA
VKA = 10V to Vref
VKA = 36V to 10V
Reference Input Current
Ik = 10mA, R1 = 10k, R2 =
Tamb = 25°C
Tmin Tamb Tmax
Reference Input Current Deviation
Over Temperature Range
Ik = 10mA, R1 = 10k, R2 =
Tmin Tamb Tmax
Minimum Cathode Current for Regulation
VKA = Vref
Off-State Cathode Current
Dynamic Impedance - note 2
VKA = Vref ,Ik = 1 to100mA, f 1kHZ
TL431C
Min. Typ. Max.
2.44 2.495 2.55
2.423
2.567
3
17
-1.4 -2.7
-1
-2
1.8
4
5.2
0.4
1.2
0.5
1
2.6 1000
0.22 0.5
Value
Vref to 36
1 to 100
0 to +70
-40 to +105
TL431AC
Min. Typ. Max.
2.47 2.495 2.52
2.453
2.537
3
15
-1.4 -2.7
-1
-2
1.8
4
5.2
0.4
1.2
0.5
0.6
2.6 1000
0.22 0.5
1) ∆Vref is defined as the difference between the maximum and minimum values obtained over the full temperature range.
Vref = Vref max. - Vref min.
Unit
V
mA
°C
Unit
V
mV
mV/V
µA
µA
mA
nA
V ref max.
V ref min.
T1
2)
The
dynamic
Impedance
is
definied
as
ZKA =
----V-----K-----A--
IK
2/10
T2
Temperature
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